Due to the dynamic nature of the device, the force achieved from the device is only ever as much as the person using it. With its gentle yet dynamic, non-impact nature of Powerball helps build muscle strength, stimulate blood flow and restore the full range of movement in joints. The basic theory centres around how gyroscopes act on the environment around them. Once a gyroscope has started, then it asserts a centrifugal force and inertia on objects in contact with it. As you gently build up the speed of the device is useful for increasing finger, hand, wrist and arm strength as well as increasing blood flow and ligament strength. What do you want from your NSD Powerball today? - World Appeal - Totally non-impact at low speeds and medically recommended, NSD Powerball is a dynamic handheld device. The inside of the device is grooved near the axle, so with an externally applied force, the axle will push against the rim. With practice, speeds in access of 15,000 rpm's can be generated. Inside there is a finely engineered and precision crafted gyro with a rotor that spins rapidly once the device has been started either by a rip cord

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