NSD Powerball Review

    NSD powerball 350hz metalSurely many have already heard about the aka powerball hand exercise machine . Most often it was mentioned on the hubr in the light of the prevention of  tunnel syndrome .
    Just the other day I received this copy and try to talk about personal impressions.


    Introduction


    We must start with the fact that the purpose of the purchase was precisely the prevention of tunnel syndrome, because Although the work is not related to coding, the hands are always on the mouse and clave. Therefore, it was decided to start prevention immediately.

    I started my acquaintance with gyro simulators from the site  powerball.ru , where all models from NSD are listed, and there are customer reviews about each of them. After a visual acquaintance with the models, clarity did not increase which model to take and what the differences would be noticeable except for the wallet.
    Therefore, I had to read the forums and talk with people who already had these devices.

    What is it and how does it work


    Each powerball consists of a housing, a rotor and a groove.
    image

    The main components of the gyrotwister. A pale blue color indicates a translucent body, a light purple circular groove, black - the axis of the gyroscope, yellow - the rotor.
    From the name of the  gyroscopic simulator, it becomes clear that the powerball is essentially a  gyroscope .
    All the specifics of powerball work are well described in  the wiki article , but if we say in human language what happens during training, then it can be described as follows:
    When spinning the rotor and making rotational movements with the brush, the spin speed of the rotor increases (how, by how much, and by what physical laws, is again described in the above wiki article). As a result of the rotation of the rotor, forces are created that manifest themselves in the fact that the powerball seems to break out of the brush, and you have to apply the efforts of the hand and forearm in order to hold the ball in your hand and maintain rotation. As a result of carpal rotations, as I understand it, the desired effect on the joints occurs, which is the ultimate goal in the prevention of diseases of the hand.

    Models


    Let's take a quick look at the available models.
    As you can see from the official Russian branch of NSD Powerballs, we are offered a choice of 5 models of powerballs (+1 350hz Hi speed, but it does not count so far).
    You can read about what they write about each model on  the store page .

    I will tell you very briefly on each of the models, but first I will note that there are models with and without a counter. On the counter you can see your maximum RPM and current RPM, which is undoubtedly very valuable for monitoring performance.

    imagePowerball 250Hz - The simplest model, plastic case, plastic rotor, low price and corresponding reliability. However, the price is pleasing to the eye. It would seem that it can break in a device of 3 components? It turns out that the groove is erased (it’s the ring along which the rotor axis goes), in addition, as the engineers assure, they improved the rotor balancing from model to model. This characteristic is certainly important, but the rings wear out more often and require replacement, it becomes noticeable when the powerball starts to make noise and click unhealthy during promotion.
    imagePowerball 250hz neon (techno) The same eggs The same POWERBALL 250Hz, only with diodes (creeping line for the TECHNO model), which glow brighter, the higher the rotor speed. The model is popular because of the wow effect. For some reason, it breaks more often than a simple 250hz.
    imagePowerball metal 350hz the main difference between this model and the rest is  weight and rotor . Since the sphere and the rotor are made of metal, the weight of this device is 500 g. And I bought just such a model.
    Why did the choice stop on this model? Just because this device can be used as a weight trainer, and not just a warm-up. Those. plastic balls will certainly crush the brush as it should, and more is not required for prevention, but to strengthen the brush and forearm will most fully work with this model. Among other things, as NSD engineers write, the rotor in this model is especially precisely calibrated)


    Impressions



    It should be noted that I bought powerball on ebay, because there, even with delivery, it came out 1.5k cheaper.
    After receiving it in the mail, I immediately tried it in practice. I must say that the effect is clearly superior to that which you expect from a metal barrel with a smaller barrel inside.
    After 30 seconds of working at 5,000-6,000 RPM, you realize that the hand loads just fine, the muscles of the forearm also work, and the fingers especially feel the load.
    Initially, the product was created for tennis players, golfers and other -ists who need strength in the hand. However, changing the position of the hand, you can achieve the work of both the hand and triceps, shoulder and biceps.
    After yesterday’s classes, today my hands are clogged to the eyeballs, despite the fact that I didn’t spin the powerball quickly when watching a movie, so I felt the effect directly on myself.

    I note that I have not tried a plastic powerball, so there is nothing to say about the degree of load efficiency, but I heard that the difference compared to metal is striking.
    The only conclusion I read somewhere is that a plastic powerball is enough to warm up the brush.
    Finally, you can see how the current “champion” Akis works
    .

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