
Originally Posted by
dragonriot
I am doing a study on the ability for a Powerball, Dynaball, Theraball - or whatever other hand gyro you may own - to build muscle in your arms, hands, fingers, shoulders and neck. I know it isn't available to everyone, but I invite you all to find a Hand Dynamometer and give it a squeeze with both hands as soon as you can and post the results of your test here. Please include the date of your test. After a month, I'd like to check everyone again to see how much - if at all - the overall strength of the group has improved.
My wife is a Physical Therapist (Physiotherapist for those of you not in the United States), and has doubts about the safety of using these balls for therapy. She has openly stated that she feels I'll end up with Lateral Epicondolytis due to the repetitive motions of keeping the ball spinning. I'd like to be able to conduct a scientific study on the effects and benefits of Powerball training and give them to her after we are done.
You can find a Hand Dynamometer at any Physical Therapy, Occupational Therapy, or Rehabilitation clinic. You might also try looking at local pharmacy stores or exercise equipment stores.
Here are my results from today. All results are in Pounds per Square Inch.
Grip 1, Right hand - 147psi
Grip 2, Right hand - 145psi
Grip 1, Left hand - 128psi
Grip 2, Left hand - 127psi
Knowing how much I've already gained, I am confident that in one month's time, I will be able to push the dyno to a minimum of 170psi with each hand, which is almost as much as a 200lb mechanic can exert on a 1/2" drive breaker bar.
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