Muscle groups: Opposing groups like biceps and triceps in the upper arms. Quads and hamstrings in the thighs. This way one group does not contracture and over power the others. Muscle balance is the key. Good luck
Answered 2/3/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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