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 who briefly contracted their arm muscles as hard as possible once daily increased their biceps strength by up to 12 percent in a month. By Gretchen Reynolds Could three seconds a day of ...

Imagine going to the gym for the first time or after an extended break. Following a good warm-up, you move to the squat rack, load up the bar and crack on. You might think that this doesn’t feel too ...