Directory For a Sex Photos : In every concentric contraction (overcoming or lifting a load), lifting a certain weight with more acceleration will always produce a greater degree of intramuscular tension. In an eccentric contraction (yielding or lowering a resistance) it’s
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» In every concentric contraction (overcoming or lifting a load), lifting a certain weight with more acceleration will always produce a greater degree of intramuscular tension. In an eccentric contraction (yielding or lowering a resistance) it’s