Time under contraction is not directly measured in a typical weight training program. Most people really don't even think about the number of seconds a given muscle is forced to work. Indirectly, ...

Time under contraction is not directly measured in a typical weight training program. Matt Parrott, a freelance writer, is director of business development and population health solutions for Quest ...

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, ...

TOKYO -- The Nikkei South Korea Manufacturing Purchasing Managers' Index, or PMI, remained in the contraction territory in August with continued reduction in output.