Gyroscopic trainer for hands 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 engage in prevention of development 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.

Operating principle

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 simulator 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 daily activities which is associated with the need to perform similar movements with the hands in sitting position. The effort that will have to be put into exercising on a gyroscopic simulator will activate not only the joints and muscles of the hand, 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 load. In this case, the impact of the simulator falls not only on the wrist area, but also on the shoulder girdle area.

No trainer required to use special training or a certain level physical development. The device is suitable for users of all ages, including children and older people.

on a gyroscopic simulator

1. Triceps training requires gripping the body of the machine as tightly as possible with your fingers. IN 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.
2. 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.
3. Training pectoral muscles involves holding the exercise 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.
4. 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 become effective means overcoming carpal tunnel syndrome, relieving muscle fatigue, as well as the development of joints and muscles of the wrist 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-gyro for training the wrist and hand. Materials: body - polycarbonate, anti-slip rim - rubber, lace - nylon.

• Manufacturer: Body Sculpture
• Article:
• Availability: 10
• Warranty: 6 months
• Unit: pcs.

Description Reviews Images

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.

Specifications:

• Universal expander gyroscope.
• Type: hand expander.
• For training the wrist and hand.
• Materials:
1. body: polycarbonate
2. anti-slip rim: rubber
3. lace: nylon
• Diameter (including rim): 7.5 cm.
• Color: blue, orange.
• Type of application: home use.
• Country of origin: China.
• Packing: blister.

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:

1. develops and strengthens wrist muscles;
2. improves blood circulation;
3. promotes recovery after various injuries;
4. easy to use and suitable for everyone, regardless of gender and age;
5. compact and easy to store.

Powerball is a GIFT that will benefit musicians, photographers, rock climbers, cyclists, badminton players, tennis those who find themselves in a hospital and don’t know what to do in the ward, those who love physics and mechanical puzzles, those who like to twirl different objects in their hands.

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? It's 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.

Train with gyroscopic trainer You can use the wrist Power Ball anywhere and anytime: in the subway or on the road, at school or in the office, at home or in 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 develop your arms, but not with the banal “eights” and “waves through crossed fingers,” but with additional physical activity: this baby total mass up to 200 gr. 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.

At the heart of the work of this simulator, lies 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, as it were, to snatch it from 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. Further, smooth movements brushes, 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 conduct office look a life where body movements are limited only to dragging the mouse across the mousepad 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 - 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 important different ways training with gyroscopic simulators.

Let's look at a few videos demonstrating various groups muscles that work when training with a hand 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 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. Also this good exercise to restore ability to work after any type of injury or with 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 the best remedy to warm up your muscles before starting your main sports activities. Even while exercising short time You will feel warmth in your hands. Regular training with a simulator prevents inflammatory diseases in elbow joints(epicondylitis, or tennis elbow).

Exercises for triceps arms



Reach out and turn back surface forearms inward and slightly forward. Speed ​​up the ball. You will feel your triceps working. This exercise is suitable for sports where strong muscles upper arm: 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 important role biceps are played: for example, 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 real effect up to the 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:

Carpal tunnel syndrome or carpal tunnel syndrome is pain in the arms, especially in the hand right hand, caused by a long monotonous
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, when overstrained, that cause 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 constant static load on the same muscles, which can be caused a large number 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 under 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 entertainment items (toys), 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 simulators whose body is made of metal, a pair uses replaceable plastic rings, 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 register maximum quantity 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 machine that generates electricity for their operation.

Usage

During use, the simulator must be held firmly in the hand, since the action forces will try to deflect it in different sides. 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 on 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 simulator 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 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. Maximum speed Rotation 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

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 ( special operation to remove excess fluid from joints). Well, well best way solve a problem - never face 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 on 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 accessories

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 the 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 disconnecting top part The bottom one is made of transparent plastic and turns into a stand for Powerball, which, as it turns out, is an extremely convenient and necessary thing, since due to their round shape, dcoder_mm “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 trainer 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 use your hand to circular movements to increase the rotor speed. 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 back, 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.

Quick 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 vvzvlad and habrauser stavor, both in the first and in the second this disease is thoroughly analyzed, 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 surpassed your previous record since your last start, the number on the counter will flash and new record will be written to memory as soon as the rotor stops rotating. If your current result 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, the essence of which is to count the number of revolutions completed over a certain period of time (30, 60 and 90 seconds). Great way 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 experienced “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.com

For China, health balls are an important part of culture and history. In other countries, Chinese balls are rarely seen in anyone's hands. The history of Baoding health balls goes back many centuries. Baoding balls can be translated as Chinese health balls, qigong balls, health balls, exercise and meditation balls (English version of Baoding Balls). The most famous name is Baoding balls.

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It comes from the name of the city of Baoding in Hebei Province. Exercises with hand balls have a long history. The history of hand exercises goes back centuries. Before balls were used as a hand trainer, they were used walnuts. Initially, the production of balls arose in the city of Baoding during the reign of the Ming Dynasty (1368-1644).

What are health balls for?

Two or three balls rotate freely in the hand. At first glance, it seems that it is simple, and you can easily repeat the movements of the master. In fact, it will take years of practice to achieve perfection. As a result of constant exercise, hand dexterity and strength improve, and flexibility increases.

The fingers become stronger and more sensitive, recovery from injury occurs more quickly, and as a result, health improves. The balls were originally made of iron and were called "iron balls". All levels of Chinese society practiced with balls, from ordinary soldiers to emperors.

Baoding balls for warriors and emperors

• Warriors used health balls to master martial arts, develop coordination, dexterity and hand strength.
• Emperors to preserve a bright mind, achieve enlightenment and longevity.
• Subjects for training super-abilities: increasing concentration, increasing energy potential.
• All together: to reveal abilities and get rid of diseases.

Today, Health Balls are recognized as official medicine.

In many centers rehabilitation medicine Health balls are used not only for training the hand and fingers, but also for recovery from injuries. Currently, Chinese medicine balls are also very popular, and various materials are used in their production: from stone to metal.

The most popular are balloons with a bell inside. When they rotate, they make a melodious sound. Due to their sound, they received the name “roaring Dragon and singing Phoenix.” Watch the video! What can be achieved after 10 years of hard training using health balls, as the author claims.

How to choose Chinese balls

Chinese balls are unpredictable for beginners and constantly tend to fall. Before you buy a couple of Chinese balls, look at your palm. If you choose Chinese balls for yourself, then do not overestimate the size of your palm. Typically, the taller you are, the larger your palm, although this is not always true.

Chinese Balls come in various diameters. Children can use 35mm balls and adults can practice with 55mm balls. For average woman A ball of 35-40 mm is suitable, for the hand of an average man 40-50 mm. From my own experience, I can add that you need to start training with balls of a smaller diameter.

If for the first time you take Chinese balls, say 45-50 mm, then you will immediately understand all your awkwardness and clumsiness. The balls will not rotate as they should, they will start to fall constantly, and you will feel like a bull in a china shop. But with time and practice the process will go as it should.

Where to start practicing with Chinese balls - trust yourself

Using the balls takes some getting used to. First, try taking two balls and placing them in your palm, check your sensations. It must be said that sensations play a huge role in this process. You need to listen to them! When you first start, the balls will fall constantly, so you shouldn't start with heavy stone balls. Start with a smaller diameter (at least they will fall less), and as agility and strength increase, the weight and size can be changed.

First you need to get used to the new sensation, and then try to rotate the balls in the direction that is most natural for you. Try changing the angle to feel the force of gravity. Then try spinning the balls in a different direction. Everything here is individual. Some people can easily rotate the balls clockwise, but cannot rotate them counterclockwise and vice versa.

There are many exercises for beginners and advanced users. Detailed description easy to find on the Internet. After just 15 minutes of training, you will feel that your arms, forearms and shoulders have received good load. You can train your palms to such an extent that you will be able to work synchronously with both hands, rotating three or even four balls in each palm.

• Important! During classes, you should not look at the balls, but you should listen to the feelings inside yourself and the new sensations of your fingers.
• Important! Chinese medicine balls cannot be transferred to someone else!
• Health balls are an item for personal use.
• Firstly, according to Chinese philosophy, you transfer your biofield and health to other people.
• Secondly, for hygienic reasons.

How to store Chinese balls

1. Chinese balls should be stored in a dry and clean place.
2. Although they are strong and durable, they should not be subjected to strong blows on hard surfaces.
3. If the balls are not in use for a long time, it is recommended to coat them with wax or grease to keep the surface smooth and shiny.

Watch a series of video lessons Exercises with health balls. Introductory video Why exercise with health balls.

Video lesson No. 1 Starting training with health balls

Continue training

Gyroscopic trainer - sports equipment, designed to train the muscles and joints of the hands, forearm, shoulder and shoulder girdle.

Design and principle of operation

What is a gyroscopic trainer and how does it work?

This is a spherical plastic or metal projectile. The size of the simulator is such that the palm of an adult can tightly clasp it and hold it with the fingers of one hand. Inside the case there is a gyroscope device; its operating principle is based on the rapid rotation of the rotor, the axis of rotation of which can change orientation in space without leaving the groove. When you spin the machine, the rotation axes of the hand and the rotor do not coincide, so you have to put in a lot of effort to overcome the force of resistance. The gyroscope will counteract any external influence.

The rotor is spun by your finger or a starter, and the faster you spin the ball, the more it spins and the more resistance it puts on your hand. On high speeds the ball tends to jump out of your hands and additional effort is required to hold it.

What is efficiency?

The gyroscopic hand trainer is often promoted as a means of preventing carpal tunnel syndrome. This is a neurological disease caused by compression of the median nerve between the bones and tendons of the wrist muscles. The syndrome occurs in people who monotonously perform monotonous flexion-extension movements with their hands. Professions at risk include instrument and machine assemblers, sign language interpreters, motorcycle racers, drummers and others.

The wrist trainer is used in many sports ( tennis, rock climbing, boxing, cycling or motorcycling, etc.). All those who want to increase finger tenacity and hand strength train with it. The benefits of the simulator are obvious: when working, you are forced to make an effort to hold the ball in your hand, due to which your fingers develop, the muscles and joints of the arms, forearm and shoulder girdle are strengthened.

Using a gyroscopic trainer, you can strengthen not only the muscles of your arms, but also your legs. There is a special device for this - a foot trainer. The device is worn on the foot or under the kneecap. The untwisted ball is installed in it and snaps into place. Then simply rotate your leg and train the muscles.

The gyroscopic simulator has supporters and opponents. Summarizing their arguments, we can conclude that it will not be possible to pump up muscles using a spinning ball. But it is good as a means for strengthening muscles and joints, and is effective for restoring mobility after injuries.

How to use

First you need to learn how to spin a gyroscopic simulator. This doesn't always work out the first time; sometimes it takes several tries to figure out how to spin the ball and how to work with it.

Many models require the use of a lanyard to start the rotor. You can spin the ball with your finger, palm, or on any surface, but such actions will cause the mechanism to become loose over time and the efficiency of the simulator will decrease.

The palm should tightly grasp the exercise machine and hold it tightly. After starting the rotor, make circular movements with your hand; these rotations will not allow the simulator to stop. It is important not to rush at first; one revolution per second is enough to learn to feel the movements of the rotor. Over time, the speed of your training will increase. The current speed record is 16,732 rpm, set in 2009 by Greek Akis Kritsinelis.

In most cases, the machine comes with instructions that tell you in detail how to use it and show the basic exercises.

What types of gyroscopic simulators are there?

The body of the simulator can be plastic or metal. The second option is more reliable, but also more expensive. If you are sure that you will be actively training, choose a metal exercise machine. If you want to use the equipment for light workouts or entertainment, feel free to buy a plastic one.

Access to the rotor is through a hole in the housing. If the machine is untwisted with your fingers or using a cord, then the hole is large enough. There are models with a small hole; they use a special starter in the form of a thin plastic strip with teeth that spins the projectile using a rack and pinion gear.

For Powerball brand simulators, there are electric starters for automatic starting: you can put the ball on the starter stand, press it and remove it already untwisted.

Some models have built-in revolution and force index counters that allow you to track the speed of rotation and remember record results. This feature is very useful and can be useful for those who regularly use the machine.

But additional effects in the form of sound or illumination are simply an entertainment component.

There are dismountable exercise machines that can be repaired and cleaned. Dust accumulates inside the projectile ( both from the outside and from abrasion of internal parts), so periodic cleaning is necessary. Collapsible models often come with a repair kit.

How much does a gyroscopic trainer cost?

Depending on the brand and configuration of the projectile, its price varies in the range from 300 rubles to several thousand. Gyroscopic simulators can be easily found in any sports store or ordered online.

The most common no-frills trainer “Torque” from Sima Sport costs about 300 rubles.

Model Torneo Energy ball 250 Hz can be bought for 1,000 rubles. The maximum rotor speed reaches 15,000 rpm. The simulator is equipped with a revolution counter, a force indexing function, LED illumination and a wrist bracelet.

Stylish metal exercise machine Powerball 350 Hz Metal with a built-in digital counter, it has a rotor speed of up to 20,000 rpm. This model will cost 5,000 rubles. The increased weight puts more stress on the arm than a plastic implement. A repair kit is included with the machine.