03-09-2010, 06:38 AM
Also you might not be stretcing properly before your workout.
Sudden muscles contraction - why?
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Sudden muscles contraction - why? - by Barbell - 12-03-2009, 12:22 PM
Sudden muscles contraction - why? - by andy - 12-05-2009, 08:05 PM
Sudden muscles contraction - why? - by muscular4life - 12-14-2009, 11:37 AM
Sudden muscles contraction - why? - by cyberfitnessguru - 03-09-2010, 06:38 AM
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