NEW
399 rub.
Gyroscopic hand trainer Power Ball HG3238 is a universal expander-gyroscope for training the wrist and hand. Materials: body - polycarbonate, anti-slip rim - rubber, lace - nylon.
- Manufacturer: Body Sculpture
- Availability: 10
- Warranty: 6 months
- Unit: pcs.
Description Reviews Images
- Universal expander gyroscope.
- Type: hand expander.
- For training the wrist and hand.
- Materials:
- housing: polycarbonate
- anti-slip rim: rubber
- lace: nylon
- Diameter (including rim): 7.5 cm.
- Color: blue, orange.
- Type of application: home use.
- Country of origin: China.
- Packing: blister.
- develops and strengthens wrist muscles;
- improves blood circulation;
- promotes recovery after various injuries;
- easy to use and suitable for everyone, regardless of gender and age;
- compact and easy to store.
Powerball is a gyroscopic simulator designed for training the hand and forearm. Powerball uses the force applied by the user to create a constant load on the muscles of the hand and arms.
Characteristics:
The main advantages of the simulator, an unusual expander and a gyroscope is that, despite its small size, it perfectly tones the muscles of the hands and wrists.
The principle of its operation is simple - the higher the spin speed of your Power Ball, the greater the load on your hand.
Advantages of the HG3238 expander:
Powerball is a GIFT that will benefit musicians, photographers, rock climbers, cyclists, badminton players, tennis players, those who find themselves in the hospital and don’t know what to do in the ward, those who love physics and mechanical puzzles, those who like to twirl in their hands different items.
Any activity that places constant stress on your fingers, hand and forearm will be performed better if you train with a Powerball. In addition, Powerball is a modern and relevant gadget that looks natural in the hands of a person who cannot imagine going to work without a suit.
It is the Power Ball that has a very well balanced rotor, and the rotation speed can reach up to 15,000 rpm. The bright orange or blue color of the plastic will bring you even more pleasant training experiences.
The Power Ball model is ideal for hand rehabilitation after injuries. Powerball is very simple, so it doesn't take much effort on your part to figure out how to use this machine. At the same time, the benefits of the Gyroscopic Carpal Power Ball Trainer are incomparable, as it develops many muscles.
If you need to restore your hand after an injury or make your hands stronger, we recommend that you buy POWERBALL. Only it can bring you a lot of pleasure at any time of the day, anywhere and pump up your muscles at the same time!
If you don't know what gift to give to your friend or loved one - give POWERBALL! The Power Ball gyroscopic hand trainer is ideal for both men and women.
You can even be sure that you will like such a gift, and most importantly, remember it! Such a simulator will not only please you, but will also bring a lot of pleasant impressions during training with it and benefits in the form of strong and healthy hands.
POWERBALL is a great gift for any holiday!
POWERBALL is both fun and training at the same time!
What is a gyroscopic hand trainer Power Ball HG3238
The Power Ball gyroscopic hand trainer is the latest invention for developing arm muscles. As soon as you take the Power Ball gyroscopic hand trainer in your hands, it immediately begins to provide you with serious resistance. The faster you spin the device, the more force you need to apply to hold it.
The Power Ball gyroscopic hand trainer can be used by everyone: children, women, men and even the elderly. You are able to dose your own load; it is impossible to harm yourself with training!
How is this simulator useful?
This gyroscopic hand simulator Power Ball is successfully used to develop hands by both athletes (tennis players, boxers, climbers, cyclists) and musicians (guitarists, pianists, saxophonists), as well as all those who want to pump up their forearms, increase arm strength and flexibility of the hands.
The hand trainer is very useful for musicians.
The gyroscopic hand trainer can also be used to recover from injuries, as it makes it possible to perfectly develop your arms.
Also, the gyroscopic hand trainer allows you to get rid of pain in the hands, the so-called tunnel syndrome (an occupational disease of those who spend a lot of time in front of the computer).
Features of training with a simulator
So how does the miracle gyroscopic hand trainer Power Ball HG3238 work? Everything is very simple. In the middle of the simulator there is a gyroscope, which you launch using your finger or cord.
As soon as the machine is started, the gyroscope begins to work in the opposite direction, creating strong pressure on the hand. The more the machine spins, the more difficult it becomes to hold it. The sensations are simply unforgettable: the thirst to conquer the naughty ball, the excitement makes training a fun, invisible and very useful game.
You can train with the Power Ball gyroscopic hand trainer anywhere and anytime: in the subway or on the road, at school or in the office, at home or in the gym! You don’t need a lot of space to practice, and the POWERBALL itself fits into your pocket or handbag without any problems.
World famous hand trainer. Gyroscopic wrist trainer - a trainer the size of an apple. This simulator allows you to work out your arms, but not with the banal “eights” and “waves through crossing your fingers,” but with additional physical activity: this baby has a total weight of up to 200 grams. capable of resisting with a force equivalent to a mass of up to 15 kg!
This is where consciousness begins to argue with the laws of physics: No, this is NOT science fiction. This is a fitness toy. By performing exercises with the simulator, you can improve the strength and tenacity of your fingers, train the strength of your hand, shoulder and forearm.
In the middle there is a rotor that activates a gyroscope: the inside of the simulator rotates in different planes.
The operation of this simulator is based on the principle of a mechanical gyroscope.
If some force is applied to the gyroscope (in this case, rotation with a hand), it will begin to rotate around a certain axis that does not coincide with the main axis of rotation of the internal rotor. At the same time, a certain centrifugal force arises, trying to tear it out of your hands.
And you will have to resist this force, holding the Powerball tightly in your hand. Rotation speed of the internal rotor is up to 15,000 rpm. The compactness of this device makes it easy to always have it with you.
To start and operate, you only need a regular cord (included). Wind it around the axle, pull it with a sharp movement and the rotor has already received the initial acceleration. Then, using smooth movements of the hand, slowly rotate the Powerball, gradually accelerating the movement.
To maintain this movement, you need to apply force - from small to equal to 15 kg. It is transmitted from the hand to the muscles of the forearm, biceps and triceps. It is this basic property that is appreciated by people who often have to lead an office lifestyle, where body movements are limited only to dragging the mouse across the rug and typing keys. You can spend just a few minutes a day strengthening your arm muscles.
Just three to five minutes of intense rotation will easily replace those iron pounds in the gym. At the same time, there is no dangerous load on the joints: there is no need to lift weights, therefore, no pulled tendons or other injuries.
In addition, the gyroscopic wrist trainer is especially convenient in conditions of small space and lack of free time: standing in a traffic jam, watching the news or favorite programs, and even doing household chores - make the most of this time!
ATTENTION! Causes exercise addiction! As soon as he comes into view, does a hand immediately follow him? Give it a place near the monitor or on the bedside table, and the workout itself will turn into a regular one.
Gyroscopic simulator device
To start the gyroscopic hand trainer, you can use the supplied cord (boat engine principle).
Exercises with a gyroscopic hand trainer
There are several fundamentally different ways to train with gyroscopic trainers.
Let's look at several videos demonstrating different muscle groups that work when training with a wrist trainer.
In each of these exercises, the faster the rotor rotates, the more resistance is created inside the ball, and the harder your muscles must work - thus creating a more intense workout!
If you are new to gyroscopic exercises, we recommend starting the exercises slowly and avoiding rapid rotation at the very beginning. Regardless of your general physical fitness.
Hold the machine only with your fingertips. This way you exercise the muscles of your fingers without the risk of overtraining them.
This is because as you apply less force, the rotor slows down and the load and power are reduced.
This type of training is very effective for rock climbers, mountain bikers, and pianists. Indispensable for people professionally involved in massage.
Wrist workout
Hold the gyroscopic wrist trainer firmly in your hand and increase the speed as you rotate your wrist. This is a good workout for your coordination. Repeat this exercise clockwise, then counterclockwise. Do the same with the other hand. After a long period of rest due to injury, you can improve the mobility of your wrist.
This training is very useful in any sport where strong wrists are important: tennis, hockey, cycling, golf. It is also a good exercise for recovery after any type of injury or carpal tunnel syndrome.
Carpal tunnel syndrome is a painful sensation in the wrist that occurs after working on a keyboard or typewriter for a long time.
Lower forearm workout
Accelerate the rotor while trying to hold the hand firmly and firmly. Now the force will automatically come from the muscles of your lower forearm. You will even see the muscles working and moving. A gyroscopic trainer is the best training device for improving the functioning of the muscles of the lower forearm.
This is the best way to warm up your muscles before starting your main sports activities. Even if you exercise for a short time, you will feel warmth in your hands. Regular training with the simulator prevents inflammatory diseases in the elbow joints (epicondylitis, or tennis elbow).
Exercises for triceps arms
Extend your arm and rotate the back of your forearm inward and slightly forward. Speed up the ball. You will feel your triceps working. This exercise is suitable for those sports where strong upper arm muscles are important: tennis, rowing, rock climbing.
Arm biceps exercises
Accelerate the rotor while holding the gyroscopic trainer at the top, as you see in the picture. You will feel the muscles in your upper arm begin to work. This exercise is great for sports where the biceps play an important role, such as rock climbing, tennis, rowing and many others.
Shoulder exercises
Extend your arm to the side and speed up the rotation. This exercise can relieve shoulder pain, and you will feel a real effect all the way down to your neck. The only thing that is true in all exercises is that in order to speed up the gyroscopic trainer and maintain the rotation speed, you must feel the ball.
This helps a lot with concentration and you will improve your body's sense of self.
Look video about the simulator:
Tunnel syndrome or carpal tunnel syndrome is pain in the hands, especially in the right hand, caused by prolonged monotonous work.
work which is based on flexion-extension movements of the hand.
The carpal tunnel (tunnel) is very narrow; the median nerve and 9 tendons of the hand muscles pass through it.
The wrist is a relatively small joint around which are concentrated:
- ligaments that connect the bones of the wrist and tendons that connect the muscles.
- forearms with fingers. It is these tendons that, when overstrained, become the cause of carpal tunnel syndrome, which causes pain in the wrist.
The cause of pain in carpal tunnel syndrome is a pinched nerve in the carpal tunnel. Pinching can be caused by swelling of the tendons passing in close proximity to the nerve, as well as swelling of the nerve itself.
The cause of pinching is the constant static load on the same muscles, which can be caused by a large number of monotonous movements (for example, when working with a computer mouse) or an uncomfortable position of the hands while working with the keyboard, in which the wrist is in constant tension.
Embroiderers, hairdressers, drivers, sign language translators, programmers, designers, copywriters, typesetters and other people are susceptible to this occupational disease.
working on a computer.
History of the study of carpal tunnel syndrome
dates back more than 130 years. It began when Paget first described a patient in whom compression of the median nerve in this tunnel developed after a fracture that healed to form excess callus.
How to disassemble and repair a gyroscopic trainer
Gyroscopic trainer
Appearance. A string is wound around the rotor for its initial spin.
Gyroscopic trainer— a sports trainer, the operating principle of which is based on the properties of a biaxial rotary gyroscope.
Purpose
It belongs to the class of hand exercisers, when used, the main load falls on the muscles and joints of the hand. To achieve high degrees of rotation of the gyroscopic simulator rotor, the muscles of the forearm, shoulder and shoulder girdle are used.
To some extent, this simulator can be classified as an entertainment item (toy), due to its rather unusual properties, demonstrating physical laws in the field of classical mechanics.
Design
It is a small spherical object that can be firmly grasped in the palm of your hand and held by the fingers of one hand of an adult. There are also models of exercise equipment for children with smaller dimensions compared to the adult model. There is another type of simulator with two diametrically opposite handles on the sides of the simulator body, which are held with both hands at the same time, like a steering wheel.
The housing contains a gyroscope device. Basically, the body is made of transparent plastic; models with a metal body are less common and are more expensive than plastic ones. As a rule, there is a hole in the housing through which access to the rotor is provided for its initial unwinding. Trainers without an open part of the rotor have small holes for threading a plastic starter in the form of a thin strip with teeth, which spins the rotor using a rack and pinion gear.
The main mass of the simulator is a massive rotor, the axis of which can rotate in a strictly diametrical position along an annular groove inside the body. The rotor, in most cases, consists of a combination of plastic and metal; rotors consisting entirely of metal, as in the case of the body, are found in more expensive models of the simulator.
The ability to disassemble the simulator piece by piece (for example, to clean it) may or may not be present.
Description of parts
- Frame- if it is disassembled, it consists of two halves. Parts of plastic cases are held in place by latches and screws, while parts of metal cases are screwed onto threads. The housing holds the rotor axis in circular groove.
- Rotor- an element that rotates both on its own axis and perpendicular to the plane of rotation of this axis along a circular groove.
- Restriction ring— holds the rotor axis in a strictly diametrical position, preventing it from “crashing” into the circular groove during torsion. This ring rotates with the rotor along a circular groove.
In the simulators, the body of which is made of metal, a pair of replaceable plastic rings are used, which form a circular groove and against which the rotor axis rubs, and therefore there is no advantage in terms of durability over simulators with a plastic body.
As a rule, a replacement set of such rings along with a restrictive ring is included in the metal simulator kit.
Peculiarities
Model with revolution counter
Some simulators are equipped, or can be retrofitted, with an electronic counter that allows you to record the maximum number of revolutions per minute (RPM). revolutions per minute). The current world record - a speed of 16,732 revolutions per minute, was set by the Greek Akis Kritsinelis (Greek Akis Kritsinelis). He also holds the power index record (number of revolutions in 90 seconds), equal to 21,228 revolutions.
There are luminous models of the simulator, on which several LEDs are installed and a dynamo that generates electricity for their operation.
Usage
The exercise machine must be held firmly in your hand during use, as the forces of action will try to deflect it in different directions. Do not allow the machine to fall, especially while it is moving.
First, it is necessary to give the rotor some minimum kinetic moment. This is done by sharply and slidingly touching the protruding part of the rotor with some finger (usually the thumb) in the direction of rotation. To make starting easier, a starter is used in the form of a cord, which is inserted into a small hole in the rotor and wound around it along a groove (like a reel), after which it is pulled out by the remaining part.
When the rotor spins up to 2-3 thousand revolutions per minute, a person holding the machine in his hand can accelerate it to much higher speeds by making circular movements with his hand.
When a constant external force is applied to the gyroscope, it begins to rotate around a certain axis that does not coincide in direction with the main axis of the rotating rotor, that is, to precess. In this case, the rotation does not occur in accordance with the direction of the external force. The magnitude of precession is proportional to the magnitude of the acting force. If the external influence ceases, the precession ends instantly, but the rotor continues to rotate.
Once the rotor is started, tilting the device will cause one end of the axle to move along the top side of the groove and the other end along the bottom. When the axis of the rotating rotor comes into contact with the top and bottom surface of the groove, it causes precession and the rotor axis will begin to move in a circular motion along it. The frictional force between the axis and the groove surface can either speed up or slow down the rotation of the gyroscope.
The greatest acceleration is achieved when the rotor axis begins to “slide” along the groove surface as smoothly as possible. Since frictional force is very important for this effect, the device should never cannot be lubricated. The maximum rotation speed of the rotor is achieved by holding the sphere in your hand and constantly maintaining rotation with the movement of your hand.
Physical principle of operation
Rice. 3. Basic metric parameters of the gyrosimulator. Axle length and axle diameter.
| Total comments: 1 | |
The gyroscopic hand trainer is developed on the basis of a gyroscope, a device that was previously widely used to determine spatial directions. Currently, the device is used mainly by people susceptible to developing carpal tunnel syndrome. The advanced stage of the syndrome requires serious hospital treatment. To avoid such problems, it is recommended to prevent the development of wrist joints. And for this, a gyroscopic simulator is perfect.
Design
Externally, gyroscopic simulators have the outline of a small spherical object. The base of the case, in most cases, is made of durable plastic of different colors and levels of transparency. At the same time, there is a whole mass of metal models of gyroscopic simulators. However, such options are somewhat overpriced and are used mainly by advanced athletes.
The gyroscopic trainer may contain an electronic revolution counter in the upper part. Some models with a reduced cost only have space for such accessories, which can be purchased separately, if necessary.
There is an open area at the bottom of the machine through which you can see the rotor in action. It is launched using a special thread. The body of such devices is often covered with elastic rubber pads, which helps to confidently hold the simulator in your hand.
Separate mention should be made of the lighting of gyroscopic training simulators. For example, the torneo gyroscopic simulator, like a whole host of other popular models, has dynamic lighting, where the brightness of the glow and its hue change based on the intensity of wrist movements and the speed of rotation of the rotor.
Principle of operation
As noted above, a gyroscopic simulator operates based on a rapidly rotating rotor in the middle of a plastic sphere. The training is based on performing circular movements with the hand, which adds additional revolutions to the spinning rotor. Rotation of the machine with the activated rotor results in opposing forces acting on the hand, which requires a firm grip on the device in the hand.
Starting the rotor together with tilting the simulator to the sides causes the axes of the device to move along special grooves - upper and lower. The frictional force between the axles and the groove structure can slow down or speed up the rotation of the internal gyroscope. Maximum acceleration becomes most noticeable when the rotor axes acquire the smoothest sliding along the grooves.
The presence of frictional force plays a decisive role in training using a gyroscopic simulator. Therefore, to achieve a noticeable effect, it is not recommended to lubricate the mechanisms of such devices.
How is a gyroscopic trainer useful?
The behavior of a gyroscopic trainer when the rotor is running is somewhat reminiscent of the action of a top or a yo-yo. However, unlike these devices, the “gyroscope” makes it possible to enjoy the coordinated work of the internal mechanism, develop joint flexibility, train muscles and hands, achieve high results, and record your own records.
It is recommended to purchase a gyroscopic trainer (250 Hz), or devices of any other power, for people whose daily activities involve the need to perform similar movements with their hands in a sitting position. The efforts that will have to be made to exercise on a gyroscopic simulator will activate not only the joints and muscles of the hands, but will also force the forearms and the entire shoulder girdle to work.
Gyroscopic trainer - how to use?
The operation of gyroscopic simulators is possible in the absence of any batteries. To activate the rotor of the device, it is usually enough to tighten it with a special cord during active rotational movements of the hand.
You can increase the complexity of the exercise on the simulator by performing rotational wrist movements in the opposite direction to the rotor speed. This approach leads to the appearance of resistance between multidirectional forces, which will force the arm muscles to overcome additional stress. In this case, the impact of the simulator falls not only on the wrist area, but also on the shoulder girdle area.
To use the simulator, no special training or a certain level of physical development is required. The device is suitable for users of all ages, including children and older people.
on a gyroscopic simulator
- Triceps training requires gripping the body of the machine as tightly as possible with your fingers. In the starting position, the hand is in a relaxed state, lowered down. The essence of the exercise is to perform rotational movements of the forearm in the frontal direction in a clockwise direction with a gradual increase in the speed of rotation.
- consist of raising and lowering an arm bent at the elbow joint with a simulator clamped in the hand. Smooth, rhythmic rotational movements of the brush are also performed. During the most active movements, the entire upper arm is additionally trained.
- Training the pectoral muscles involves holding the machine with your arm extended to the side. It is necessary to perform rotational movements with the hand so actively that the load is felt on the entire arm and chest muscles, right up to the neck.
- To train your fingers, it is enough to perform rotations while firmly grasping the exercise machine with your hand. The load on the fingers can be adjusted by moving the simulator closer to their ends or to the palm. To achieve high results and increase the effectiveness of training, it is recommended to change the sides of rotation.
Who can please with a gyroscopic trainer?
A gyroscopic trainer can be an effective means of overcoming carpal tunnel syndrome, relieving muscle fatigue, as well as developing wrist joints and muscles for the following categories of users:
- experienced office workers;
- people whose activities involve the need to remain in a sedentary, sedentary position for long periods of time;
- users who have to spend most of the day in front of a computer;
- older people who suffer from lack of activity;
- schoolchildren and students who need to develop fingers or overcome chronic tightness of the wrist joint.
NEW
399 rub.
Gyroscopic hand trainer Power Ball HG3238 is a universal expander-gyroscope for training the wrist and hand. Materials: body - polycarbonate, anti-slip rim - rubber, lace - nylon.
- Manufacturer: Body Sculpture
- Availability: 10
- Warranty: 6 months
- Unit: pcs.
Description Reviews Images
- Universal expander gyroscope.
- Type: hand expander.
- For training the wrist and hand.
- Materials:
- housing: polycarbonate
- anti-slip rim: rubber
- lace: nylon
- Diameter (including rim): 7.5 cm.
- Color: blue, orange.
- Type of application: home use.
- Country of origin: China.
- Packing: blister.
- develops and strengthens wrist muscles;
- improves blood circulation;
- promotes recovery after various injuries;
- easy to use and suitable for everyone, regardless of gender and age;
- compact and easy to store.
- ligaments that connect the bones of the wrist and tendons that connect the muscles.
- forearms with fingers. It is these tendons that, when overstrained, become the cause of carpal tunnel syndrome, which causes pain in the wrist.
- Frame- if it is disassembled, it consists of two halves. Parts of plastic cases are held in place by latches and screws, while parts of metal cases are screwed onto threads. The housing holds the rotor axis in circular groove.
- Rotor- an element that rotates both on its own axis and perpendicular to the plane of rotation of this axis along a circular groove.
- Restriction ring— holds the rotor axis in a strictly diametrical position, preventing it from “crashing” into the circular groove during torsion. This ring rotates with the rotor along a circular groove.
Total comments: 1
Powerball is a gyroscopic simulator designed for training the hand and forearm. Powerball uses the force applied by the user to create a constant load on the muscles of the hand and arms.
Characteristics:
The main advantages of the simulator, an unusual expander and a gyroscope is that, despite its small size, it perfectly tones the muscles of the hands and wrists.
The principle of its operation is simple - the higher the spin speed of your Power Ball, the greater the load on your hand.
Advantages of the HG3238 expander:
Powerball is a GIFT that will benefit musicians, photographers, rock climbers, cyclists, badminton players, tennis players, those who find themselves in the hospital and don’t know what to do in the ward, those who love physics and mechanical puzzles, those who like to twirl in their hands different items.
Any activity that places constant stress on your fingers, hand and forearm will be performed better if you train with a Powerball. In addition, Powerball is a modern and relevant gadget that looks natural in the hands of a person who cannot imagine going to work without a suit.
It is the Power Ball that has a very well balanced rotor, and the rotation speed can reach up to 15,000 rpm. The bright orange or blue color of the plastic will bring you even more pleasant training experiences.
The Power Ball model is ideal for hand rehabilitation after injuries. Powerball is very simple, so it doesn't take much effort on your part to figure out how to use this machine. At the same time, the benefits of the Gyroscopic Carpal Power Ball Trainer are incomparable, as it develops many muscles.
If you need to restore your hand after an injury or make your hands stronger, we recommend that you buy POWERBALL. Only it can bring you a lot of pleasure at any time of the day, anywhere and pump up your muscles at the same time!
If you don't know what gift to give to your friend or loved one - give POWERBALL! The Power Ball gyroscopic hand trainer is ideal for both men and women.
You can even be sure that you will like such a gift, and most importantly, remember it! Such a simulator will not only please you, but will also bring a lot of pleasant impressions during training with it and benefits in the form of strong and healthy hands.
POWERBALL is a great gift for any holiday!
POWERBALL is both fun and training at the same time!
What is a gyroscopic hand trainer Power Ball HG3238
The Power Ball gyroscopic hand trainer is the latest invention for developing arm muscles. As soon as you take the Power Ball gyroscopic hand trainer in your hands, it immediately begins to provide you with serious resistance. The faster you spin the device, the more force you need to apply to hold it.
The Power Ball gyroscopic hand trainer can be used by everyone: children, women, men and even the elderly. You are able to dose your own load; it is impossible to harm yourself with training!
How is this simulator useful?
This gyroscopic hand simulator Power Ball is successfully used to develop hands by both athletes (tennis players, boxers, climbers, cyclists) and musicians (guitarists, pianists, saxophonists), as well as all those who want to pump up their forearms, increase arm strength and flexibility of the hands.
The hand trainer is very useful for musicians.
The gyroscopic hand trainer can also be used to recover from injuries, as it makes it possible to perfectly develop your arms.
Also, the gyroscopic hand trainer allows you to get rid of pain in the hands, the so-called tunnel syndrome (an occupational disease of those who spend a lot of time in front of the computer).
Features of training with a simulator
So how does the miracle gyroscopic hand trainer Power Ball HG3238 work? Everything is very simple. In the middle of the simulator there is a gyroscope, which you launch using your finger or cord.
As soon as the machine is started, the gyroscope begins to work in the opposite direction, creating strong pressure on the hand. The more the machine spins, the more difficult it becomes to hold it. The sensations are simply unforgettable: the thirst to conquer the naughty ball, the excitement makes training a fun, invisible and very useful game.
You can train with the Power Ball gyroscopic hand trainer anywhere and anytime: in the subway or on the road, at school or in the office, at home or in the gym! You don’t need a lot of space to practice, and the POWERBALL itself fits into your pocket or handbag without any problems.
World famous hand trainer. Gyroscopic wrist trainer - a trainer the size of an apple. This simulator allows you to work out your arms, but not with the banal “eights” and “waves through crossing your fingers,” but with additional physical activity: this baby has a total weight of up to 200 grams. capable of resisting with a force equivalent to a mass of up to 15 kg!
This is where consciousness begins to argue with the laws of physics: No, this is NOT science fiction. This is a fitness toy. By performing exercises with the simulator, you can improve the strength and tenacity of your fingers, train the strength of your hand, shoulder and forearm.
In the middle there is a rotor that activates a gyroscope: the inside of the simulator rotates in different planes.
The operation of this simulator is based on the principle of a mechanical gyroscope.
If some force is applied to the gyroscope (in this case, rotation with a hand), it will begin to rotate around a certain axis that does not coincide with the main axis of rotation of the internal rotor. At the same time, a certain centrifugal force arises, trying to tear it out of your hands.
And you will have to resist this force, holding the Powerball tightly in your hand. Rotation speed of the internal rotor is up to 15,000 rpm. The compactness of this device makes it easy to always have it with you.
To start and operate, you only need a regular cord (included). Wind it around the axle, pull it with a sharp movement and the rotor has already received the initial acceleration. Then, using smooth movements of the hand, slowly rotate the Powerball, gradually accelerating the movement.
To maintain this movement, you need to apply force - from small to equal to 15 kg. It is transmitted from the hand to the muscles of the forearm, biceps and triceps. It is this basic property that is appreciated by people who often have to lead an office lifestyle, where body movements are limited only to dragging the mouse across the rug and typing keys. You can spend just a few minutes a day strengthening your arm muscles.
Just three to five minutes of intense rotation will easily replace those iron pounds in the gym. At the same time, there is no dangerous load on the joints: there is no need to lift weights, therefore, no pulled tendons or other injuries.
In addition, the gyroscopic wrist trainer is especially convenient in conditions of small space and lack of free time: standing in a traffic jam, watching the news or favorite programs, and even doing household chores - make the most of this time!
ATTENTION! Causes exercise addiction! As soon as he comes into view, does a hand immediately follow him? Give it a place near the monitor or on the bedside table, and the workout itself will turn into a regular one.
Gyroscopic simulator device
To start the gyroscopic hand trainer, you can use the supplied cord (boat engine principle).
Exercises with a gyroscopic hand trainer
There are several fundamentally different ways to train with gyroscopic trainers.
Let's look at several videos demonstrating different muscle groups that work when training with a wrist trainer.
In each of these exercises, the faster the rotor rotates, the more resistance is created inside the ball, and the harder your muscles must work - thus creating a more intense workout!
If you are new to gyroscopic exercises, we recommend starting the exercises slowly and avoiding rapid rotation at the very beginning. Regardless of your general physical fitness.
Hold the machine only with your fingertips. This way you exercise the muscles of your fingers without the risk of overtraining them.
This is because as you apply less force, the rotor slows down and the load and power are reduced.
This type of training is very effective for rock climbers, mountain bikers, and pianists. Indispensable for people professionally involved in massage.
Wrist workout
Hold the gyroscopic wrist trainer firmly in your hand and increase the speed as you rotate your wrist. This is a good workout for your coordination. Repeat this exercise clockwise, then counterclockwise. Do the same with the other hand. After a long period of rest due to injury, you can improve the mobility of your wrist.
This training is very useful in any sport where strong wrists are important: tennis, hockey, cycling, golf. It is also a good exercise for recovery after any type of injury or carpal tunnel syndrome.
Carpal tunnel syndrome is a painful sensation in the wrist that occurs after working on a keyboard or typewriter for a long time.
Lower forearm workout
Accelerate the rotor while trying to hold the hand firmly and firmly. Now the force will automatically come from the muscles of your lower forearm. You will even see the muscles working and moving. A gyroscopic trainer is the best training device for improving the functioning of the muscles of the lower forearm.
This is the best way to warm up your muscles before starting your main sports activities. Even if you exercise for a short time, you will feel warmth in your hands. Regular training with the simulator prevents inflammatory diseases in the elbow joints (epicondylitis, or tennis elbow).
Exercises for triceps arms
Extend your arm and rotate the back of your forearm inward and slightly forward. Speed up the ball. You will feel your triceps working. This exercise is suitable for those sports where strong upper arm muscles are important: tennis, rowing, rock climbing.
Arm biceps exercises
Accelerate the rotor while holding the gyroscopic trainer at the top, as you see in the picture. You will feel the muscles in your upper arm begin to work. This exercise is great for sports where the biceps play an important role, such as rock climbing, tennis, rowing and many others.
Shoulder exercises
Extend your arm to the side and speed up the rotation. This exercise can relieve shoulder pain, and you will feel a real effect all the way down to your neck. The only thing that is true in all exercises is that in order to speed up the gyroscopic trainer and maintain the rotation speed, you must feel the ball.
This helps a lot with concentration and you will improve your body's sense of self.
Look video about the simulator:
Tunnel syndrome or carpal tunnel syndrome is pain in the hands, especially in the right hand, caused by prolonged monotonous work.
work which is based on flexion-extension movements of the hand.
The carpal tunnel (tunnel) is very narrow; the median nerve and 9 tendons of the hand muscles pass through it.
The wrist is a relatively small joint around which are concentrated:
The cause of pain in carpal tunnel syndrome is a pinched nerve in the carpal tunnel. Pinching can be caused by swelling of the tendons passing in close proximity to the nerve, as well as swelling of the nerve itself.
The cause of pinching is the constant static load on the same muscles, which can be caused by a large number of monotonous movements (for example, when working with a computer mouse) or an uncomfortable position of the hands while working with the keyboard, in which the wrist is in constant tension.
Embroiderers, hairdressers, drivers, sign language translators, programmers, designers, copywriters, typesetters and other people are susceptible to this occupational disease.
working on a computer.
History of the study of carpal tunnel syndrome
dates back more than 130 years. It began when Paget first described a patient in whom compression of the median nerve in this tunnel developed after a fracture that healed to form excess callus.
How to disassemble and repair a gyroscopic trainer
Gyroscopic trainer
Appearance. A string is wound around the rotor for its initial spin.
Gyroscopic trainer— a sports trainer, the operating principle of which is based on the properties of a biaxial rotary gyroscope.
Purpose
It belongs to the class of hand exercisers, when used, the main load falls on the muscles and joints of the hand. To achieve high degrees of rotation of the gyroscopic simulator rotor, the muscles of the forearm, shoulder and shoulder girdle are used.
To some extent, this simulator can be classified as an entertainment item (toy), due to its rather unusual properties, demonstrating physical laws in the field of classical mechanics.
Design
It is a small spherical object that can be firmly grasped in the palm of your hand and held by the fingers of one hand of an adult. There are also models of exercise equipment for children with smaller dimensions compared to the adult model. There is another type of simulator with two diametrically opposite handles on the sides of the simulator body, which are held with both hands at the same time, like a steering wheel.
The housing contains a gyroscope device. Basically, the body is made of transparent plastic; models with a metal body are less common and are more expensive than plastic ones. As a rule, there is a hole in the housing through which access to the rotor is provided for its initial unwinding. Trainers without an open part of the rotor have small holes for threading a plastic starter in the form of a thin strip with teeth, which spins the rotor using a rack and pinion gear.
The main mass of the simulator is a massive rotor, the axis of which can rotate in a strictly diametrical position along an annular groove inside the body. The rotor, in most cases, consists of a combination of plastic and metal; rotors consisting entirely of metal, as in the case of the body, are found in more expensive models of the simulator.
The ability to disassemble the simulator piece by piece (for example, to clean it) may or may not be present.
Description of parts
In the simulators, the body of which is made of metal, a pair of replaceable plastic rings are used, which form a circular groove and against which the rotor axis rubs, and therefore there is no advantage in terms of durability over simulators with a plastic body.
As a rule, a replacement set of such rings along with a restrictive ring is included in the metal simulator kit.
Peculiarities
Model with revolution counter
Some simulators are equipped, or can be retrofitted, with an electronic counter that allows you to record the maximum number of revolutions per minute (RPM). revolutions per minute). The current world record - a speed of 16,732 revolutions per minute, was set by the Greek Akis Kritsinelis (Greek Akis Kritsinelis). He also holds the power index record (number of revolutions in 90 seconds), equal to 21,228 revolutions.
There are luminous models of the simulator, on which several LEDs are installed and a dynamo that generates electricity for their operation.
Usage
The exercise machine must be held firmly in your hand during use, as the forces of action will try to deflect it in different directions. Do not allow the machine to fall, especially while it is moving.
First, it is necessary to give the rotor some minimum kinetic moment. This is done by sharply and slidingly touching the protruding part of the rotor with some finger (usually the thumb) in the direction of rotation. To make starting easier, a starter is used in the form of a cord, which is inserted into a small hole in the rotor and wound around it along a groove (like a reel), after which it is pulled out by the remaining part.
When the rotor spins up to 2-3 thousand revolutions per minute, a person holding the machine in his hand can accelerate it to much higher speeds by making circular movements with his hand.
When a constant external force is applied to the gyroscope, it begins to rotate around a certain axis that does not coincide in direction with the main axis of the rotating rotor, that is, to precess. In this case, the rotation does not occur in accordance with the direction of the external force. The magnitude of precession is proportional to the magnitude of the acting force. If the external influence ceases, the precession ends instantly, but the rotor continues to rotate.
Once the rotor is started, tilting the device will cause one end of the axle to move along the top side of the groove and the other end along the bottom. When the axis of the rotating rotor comes into contact with the top and bottom surface of the groove, it causes precession and the rotor axis will begin to move in a circular motion along it. The frictional force between the axis and the groove surface can either speed up or slow down the rotation of the gyroscope.
The greatest acceleration is achieved when the rotor axis begins to “slide” along the groove surface as smoothly as possible. Since frictional force is very important for this effect, the device should never cannot be lubricated. The maximum rotation speed of the rotor is achieved by holding the sphere in your hand and constantly maintaining rotation with the movement of your hand.
Physical principle of operation
Rice. 3. Basic metric parameters of the gyrosimulator. Axle length and axle diameter.
Currently, a huge number of people, if not yet, are susceptible to the so-called carpal tunnel syndrome. The risk group includes people of various professions and hobbies, for example, drivers, artists, photographers and, of course, people who work a lot on the computer; they are the most susceptible to this disease. In the advanced stage of CTS (Carpal Tunnel Syndrome), hospital treatment may be required, including surgery (a special operation to remove excess fluid from the joints). Well, the best way to solve a problem is to never encounter it. To do this, you need to engage in prevention through warm-up or specialized devices, such as a gyroscopic simulator.
Today I will talk about 3 Powerball models - Classic, Fusion and Autostart. These are some of the most popular models at the moment. They can also cover the entire line of hand exercisers, with the exception of metal devices. Read more below the cut.
Packaging and equipment
The Powerball Classic and Fusion models come in blister packs, while the Autostart model comes in a clear plastic cylinder-shaped case.
On the reverse side of the “blister” packages are instructions for starting the exercise machine and a photo of a man who pumped up his bicep with a gyroscopic exercise machine with designated muscle groups that are affected by the Powerball.
But the most interesting thing is the packaging of the Autostart model. First, to open it, you need to remove the bottom of the flask, on which there is a Mini-CD (23 MB) with detailed instructions (Russian available) in the form of an HTML page.
Actually, the “interestingness” lies in the practicality of this box. By detaching the upper part made of transparent plastic, the lower one turns into a stand for Powerball, which, as it turns out, is an extremely convenient and necessary thing, since due to their round shape, “power balls” often like to roll off the table.
The delivery set for the Classic and Fusion models consists of the simulators themselves, brief instructions, a Mini-CD and a pair of laces for launching the device. Accordingly, Powerball Autostart has everything the same except for the laces.
Each device comes with a lifetime (!) warranty on the rotor and speed counter. Moreover, in the event of a breakdown, repairs are promised within 14 working days or replacement of the product.
Appearance
Externally, a gyroscopic simulator is a small spherical object. In most cases, the body is made of thick plastic of various colors and degrees of transparency. There are also metal models, but they are positioned as devices for advanced users, and accordingly their price is higher.
In the upper part there is a revolution counter or a seat for it, since there are models on sale both with and without a speed counter. The price difference for the younger models is around $20. In any case, even if you initially purchase a model without a meter, you can install it at any time. Business there for 5 minutes, except that you have to overpay a little and pay not 20, but 25 dollars.
Due to the open lower part, you can see the “bare” rotor. The latter has a hole for the thread with which the simulator is launched. Additionally, the Powerball body is framed with a rubber pad for a more secure hold in the hand.
An exception is the Autostart model, to start which you need to “wind up” the rotor, and for better grip with your fingers, two rubber pads are provided.
It's also worth mentioning the backlight. In these simulators it can be called dynamic, since the brightness of the glow changes depending on the speed of rotation of the rotor. Most of the models in the Powerball line have a single-color glow, with the exception of one of the heroes of our today's review - Powerball Fusion. The color of its glow changes smoothly from red to blue as the RPM increases. The transition to blue occurs when the speed reaches 8000 rpm.
Operating principle and guts
The principle of operation of the subject is quite simple. The device is based on a gyroscope, consisting of a rapidly spinning rotor enclosed in a plastic sphere. You can set the rotor in motion using the special rope included in the kit, then you need to make circular movements with your hand to increase the speed of the rotor. The exercise machine must be held firmly in your hand during use, as the forces of action will try to deflect it in different directions. When a constant external force is applied to the gyroscope, it begins to rotate around a certain axis that does not coincide in direction with the main axis of the rotating rotor, that is, to precess. In this case, the rotation does not occur in accordance with the direction of the external force. The magnitude of precession is proportional to the magnitude of the acting force. If the external influence ceases, the precession ends instantly, but the rotor continues to rotate.
Once the rotor is started, tilting the device will cause one end of the axle to move along the top side of the groove and the other end along the bottom. When the axis of the rotating rotor comes into contact with the top and bottom surface of the groove, it causes precession and the rotor axis will begin to move in a circular motion along it. The frictional force between the axis and the groove surface can either speed up or slow down the rotation of the gyroscope. The greatest acceleration is achieved when the rotor axis begins to “slide” along the groove surface as smoothly as possible. Since friction is very important for this effect, the device should never be lubricated. The maximum rotation speed of the rotor is achieved by holding the sphere in your hand and constantly maintaining rotation with the movement of your hand.
A more detailed physical principle of operation of Powerball can be found on Wikipedia, and we move on to analyzing the device. First you need to remove the rubber pad. 
Then unscrew the two diametrically opposed Phillips screws. 
Next we need to disassemble the body, which consists of two halves. To do this, place the Powerball on a hard, flat surface (as shown in the picture below) and naturally hit the seam sharply. As a result, the halves should separate. 
If that doesn’t work, try pressing a hard-cover book on it; under the load, the parts of the case should bend a little and separate accordingly. The only thing I don’t recommend is “picking” the seam with a screwdriver or other metal objects. If you take it apart, you will be able to take it apart, but it will most likely leave unpleasant marks and dents, like mine: 
So, the rotor, or part of it, appeared before us. We no longer need the lower half, so we remove it and take out the rotor from the top of the housing. 
By the way, about the upper part of the case, a speed sensor is located in it (optionally). To get it out, you need to use a flat screwdriver to pry off the latch with which it is secured. 
The lower part of the board is pristinely empty, only a couple of unsoldered pads for additional components are visible. To get to the reverse side, you need to unscrew 6 small screws, one of which is hidden under the sticker. 
On the top part: a “blot microcircuit”, a reed switch (counts revolutions) and all the necessary wiring. The electronics are powered by two GP377 size batteries from which the meter, according to the manufacturer, will operate for up to 2 years. 
We continue disassembly and remove the circular groove from the gyroscope axis. And be careful here. There are sealing gaskets on both sides, which tend to get lost due to their small size. 
The rotor consists of 4 parts: an axis, a metal base, a plastic shell and a board with LEDs (if the model has backlighting). 
The backlight is powered by a built-in dynamo, so no batteries are needed. 
The internal structure of other models is identical to the one we discussed above. The only exceptions are metal Powerballs and the Autostart version, which has a special mechanism for starting the rotor.
Fast start
Launching the simulator is extremely simple. All you need to do is insert the supplied rope into the groove on the rotor, then pull it out with a sharp movement, thereby giving rotation to the rotor. Next, simply spin the Powerball with slow circular movements with your hand (namely, your hand). The main thing is not to start with quick short movements of the wrist, otherwise you will not be able to catch the rhythm, and it will be difficult to spin the ball correctly. In the video below, I was a little worried, so the start was, let's say, not ideal.With Powerball Autostart it's even easier. To start the simulator, you need to “wind” the rotor in the direction indicated by the arrows on it. Then untwist according to the same pattern as the previous “ball”.
For conventional models, there is another way - starting the rotor with a sharp movement of your finger along the rotor axis, but here you need to get the hang of it. Even after two weeks of active use, I don’t always succeed.
In use
Carpal tunnel syndrome is a damage to nerve tissue (neuropathy) due to certain unfavorable conditions. Unfavorable conditions can be very different - usually it is monotonous work of the hand or prolonged exposure to unnatural positions. This topic has already been discussed several times on Habrahabr. I strongly recommend that you familiarize yourself with the works of my colleague and habrauser, which explains this disease, as well as methods of its prevention.
In general, the scope of Powerball applications is quite extensive and is not limited to CTS prevention alone. It can also be used to restore damaged ligaments and tendons after hand injuries, dislocations and fractures. In such cases, it is recommended to spin the Powerball literally a few minutes a day, but in such a way that its built-in rotor operates at a limited speed, that is, no more than 5-6 thousand revolutions per minute.
But the application possibilities do not end there. “Balls” equipped with counters give people the opportunity to compete to see who can win the most. Thus, the mandatory warm-up also becomes exciting. Moreover, the presence of an opponent nearby is not required. On the official website of NSD (Powerball manufacturer) there is a special table in which records from all over the world are entered (representatives of the CIS countries are also present there).
Now regarding the operating modes of the counter. There are 5 of them in total. Switching is done using the FCN button, and turning on and resetting using ON/CLR. In the first mode, the number of rotor revolutions that it performed from the last start until the moment it stopped is counted.
The second mode is responsible for measuring speed (RPM per minute) in real time.
The third and most commonly used mode is displaying the maximum RPM (High score), i.e. This setting records your score and displays it until you reach a higher score or reset it using the ON/CLR button. As soon as you start to rotate the simulator, the counter automatically switches to the fourth mode (New high score) - the counter shows the highest rotation speed achieved since the last start. If you have exceeded your previous record since your last start, the number on the counter will flash and the new record will be stored in memory as soon as the rotor stops spinning. If your current score is less than the record, it will be shown on the screen until the rotor stops, after which the High score mode will turn on again.
And finally, the last setting is measuring the force index, its essence is to count the number of revolutions completed over a certain period of time (30, 60 and 90 seconds). A great way to test your pussy strength (endurance?) with a friend.
The display turns off on its own after 40 seconds of inactivity.
Speaking about records, it is worth mentioning one of the most seasoned “twists”. The Greek Akis Kritsinelis is an absolute record holder in all possible modes and types of use of the gyroscopic simulator. For example, the maximum speed to which he was able to accelerate the Powerball was 16765 RPM. The video below confirms this; other records are also captured on the channel. Well, I already gave a link to the table with record holders above.
Results
Thanks to the Blog (ours, Box Overview), at 16 I don’t feel anywhere near the symptoms of carpal tunnel syndrome, but that doesn’t mean I can relax. I spend a lot of time at the computer and this situation is unlikely to change in the near future, so prevention is not something that can be done, it needs to be done. How to do this is up to you. I chose the Powerball and now periodically spin it alternating with other exercises. I settled on the Autostart model because of the convenient stand and the very possibility of easy starting. So I highly recommend purchasing!Price
The price of Powerball is very affordable. So for the youngest Classic model you need to pay ~27$, for the Autostart model 60$, and the model with Fusion glow will cost you ~70$. But the range does not end there; the official distributor of Powerball in Ukraine is BoxOverview.comPowerball is a gyroscopic hand trainer for hand training, consisting of a rotor placed in a monolithic hollow sphere. Its action is based on the inertial spinning of the gyroscope by rotating the hand after launch.
We will tell you more about how Powerball works, how to launch and spin it correctly, as well as how effective it is and what reviews there are about it.
Principle of operation
Surprisingly, the operating principle of this interesting simulator is quite simple. The Powerball itself is a gyroscope enclosed in a plastic sphere. The simulator comes with a special cord, which powers the gyroscope rotor. After this, a person only needs to perform circular movements with his hand, which increases the speed of rotation of the rotor.
In addition, there is a second, easier way to start the simulator - using a sliding and quick finger movement.
The simulator does not require a motor or batteries to operate. The energy that powers the machine comes entirely from the strength of the arms. The faster you spin the Powerball, the more energy will be transferred to the rotor.
Scope of application
The simulator is great for training “without leaving your desk.” Therefore, it is often used by office workers. Powerball can prevent compression of the nerves in the wrist area that occurs after working at the computer for a long time.
This hand trainer is also used by people who need strong hands and tenacious fingers in everyday life. Powerball is also often used by athletes and break dancers, as it is an excellent means of rehabilitating injured hands.
How to use it correctly
After purchasing Powerball, many people wonder how to use it correctly. Of course, first you need to start the simulator. There are two ways to do this: start with a lace or move your finger.
To start with a cord, you must follow several recommendations:
- Find a small hole in the rotor and insert one end of the lace into it.
- Use your thumb to slowly start rotating the rotor. and at the same time wind the cord around the rotor, pulling it. It is very important to ensure that the lace does not sag at this time, but is wound tightly around the rotor.
- Stop winding the lace it is necessary when approximately 5 cm remain unwound. Now the ball is placed in the hand with the counter facing the palm, with the rotor facing up.
- Holding the lace tightly with one hand, at the same time it must be held with a second one so that it does not unwind. Then you need to pull it sharply and quickly with such force that the cord comes out. If this is done correctly, the rotor should start spinning at a speed of 2000-3000 rpm.
- Now the hand turns over in this way, the rotor “looks” at the floor and you can begin to make gradual movements with the brush. The important thing is that the movements should be made with the hand, and not with the whole hand. There is no need to rush at first. It would be optimal to perform one revolution per second, this will help you feel the rotor better. If the movements are performed incorrectly, the rotor will begin to rattle.
The load that the arm receives while using the simulator directly depends on the speed of rotation of the rotor. In this case, you should be very careful, since having gained high speed, the simulator will try to escape from your hand.
You can also start the simulator with your finger.
To do this, you also need to follow several recommendations.
- Place the Powerball in your right hand, making sure that the hole for the lace is parallel to the line of the hand. In this case, making the starting movement with your finger will be much more convenient and easier.
- The left thumb is set perpendicular to the lace line, pad down.
- After this, you need to press lightly on the ball and cutting and quickly spin the ball, while picking it up with your right hand, in which it is located.
How to choose
There are many Powerball models today. How to choose a wrist trainer? It is worth emphasizing that all models can be divided into non-luminous and luminous. As well as models with additional functions.
Inside the glowing exercise machines, or as they are also called Powerball Neon, there are six LEDs built in and a device that makes them glow while the exercise machine is operating. Batteries are not required for such models, because the Powerball operates from the rotation of the rotor. Models can be seen in three colors: green, blue and red.
In addition, you can see glowing exercise machines with a built-in counter, thanks to which you can find out at what speed it rotates.
Powerball 250hz, not equipped with LEDs, are distinguished by their rotor balancing, which is ideal. Since during production the rotor is first centered, and then the LEDs are built in, its balancing may be lost. Of course, this is almost imperceptible, but a precisely balanced rotor can make 150,000 revolutions per minute. You can see Powerball 250hz in blue and orange colors. You can also see such models with a built-in counter.
Prices for Powerball range from 900 rubles to 2,500 rubles.
Advantages and disadvantages
So, from all of the above, we can conclude that the Powerball hand trainer has both advantages and disadvantages.
The advantages can safely be attributed to:
- mobility;
- efficiency;
- helps to recover from hand injuries;
- helps strengthen the hand and wrist;
- works without batteries;
- strength.
The disadvantages include its cost and the fact that at first after training with Powerball your hand may ache.
There is a legend that the PowerBall was created under the direction of NASA so that astronauts could train in a state of weightlessness. There is no way to use gravity in space, so scientists created training aids by replacing gravity with centrifugal force. And finally, together with kinestherapists, they invented the PowerBall gyroscopic simulator.