Correspondence to: Professor T Cochrane, Sport, Health and Exercise, University of Staffordshire, Leek Road (Brindley Building), Stoke on Trent ST4 2DF, United Kingdom. Objectives—To evaluate the ...
Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.
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