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.

Fast twitch muscles help with sudden bursts of energy involved in activities like sprinting and jumping. Twitch muscles are skeletal muscles that help support your movement. They’re especially ...

Repetitive muscle contractions can cause pain in various parts of the body. But did you know that one of the simplest and most effective ways to relieve muscle pain involves something as ordinary as a ...

Correspondence to Dr M Roig, Muscle Biophysics Laboratory, University of British Columbia, Vancouver, Canada V5Z 1L8; markredj{at}interchange.ubc.ca The aim of this systematic review was to determine ...