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X Muscle Dynamic
extending utilizes the standard of equal hindrance. This standard works out
between what are called agonist and adversary muscles. These muscle bunches are
arranged on inverse sides of a joint and work with contradicting movements. An
illustration of such contradicting muscles is the hamstring and quadriceps; the
quadriceps broaden the knee while the hamstring flexes it. https://shopxmuscles.wixsite.com/x-muscle
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