The gyroscope will respond with a rolling action and the speed of the device ranges from 2000 rpm to 16000 rpm and at this highest speed it is calculated that 40lbs of resistance is being generated. As you gently build up the speed, measured in revolutions per minute (rpm) the greater the torsion and dynamic forces acting upon your wrist, lower and upper arm muscles, depending on the arm orientation and direction of spin. If for some reason you have an injury to your arm or wrists then the Powerball can be used in a fitness, sports, rehabilitation or fun manner making it fun, pleasurable and very addictive. While the Powerball gyroscope is an excellent tool for athletes of all levels, it is also gaining a very healthy reputation for rehabilitation for arm and wrist injuries. Effectively this is the same as carrying around a set of dumbbells in your pocket! When first using the device, muscle burn and discomfort can occur, as is normal with any exercise, but this fades over time if used regularly as the muscle will tone and strengthen. Fun! Exercising has never been as much fun! Choose the model (and color!) which suits you. Exercise, play, compete... Powerball is a dynamic handheld device.

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