The flow of water within a muscle fiber may dictate how quickly muscle can contract, according to a new study. The flow of water within a muscle fiber may dictate how quickly muscle can contract, ...

Men and women across America are always looking for a way to get fit and fabulous with out putting in the serious sweat. There's a machine that can give you awesome abs and it's called Emsculpt. It's ...

Cynosure, a division of Marlborough medical device maker Hologic, announced a new product Tuesday using electromagnetic fields to contract and build muscles. The product, StimSure, is part of the ...

A concentric contraction is a type of muscle activation that causes tension on your muscle as it shortens. As your muscle shortens, it generates enough force to move an object. This is the most ...

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.