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.

Proprioceptive neuromuscular facilitation (PNF) is a form of assisted stretching. It combines passive stretching with muscle contraction. First, your partner applies force to stretch your muscle ...

Two Nature Neuroscience studies show that abdominal contractions during movement in mice can physically shift brain structures and drive cerebrospinal fluid flow. The Rochester-led work found core ...

The mechanism of skeletal muscle contraction is a process that relies on calcium signaling. However, the physiological role of calcium-induced calcium release (CICR) through the ryanodine receptor ...

A Penn State University study has found that ordinary walking can mechanically push cerebrospinal fluid through the brain by transmitting pressure from abdominal muscle contractions up the spine into ...

In a new research report, a team of scientists led by Johns Hopkins Medicine say people with severe obesity and a common type ...