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.

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, ...

Hint: It doesn't require a trip to the grocery store or gym! Staying hydrated is the top overlooked habit essential for maintaining and building muscle mass. Proper hydration supports protein ...

MIT's new hydrogel tendons strengthen muscle-powered robots, achieving 11x higher power-to-weight ratio and improved force ...

Toolbox: Skeletal muscle cramps are highly prevalent in endurance sports and often affect cyclists during racing events when the intensity of physical exertion is very high and the duration is long.