Muscle stiffness is when the muscles feel tight and difficult to move, particularly after resting. This can cause them to feel sore. Possible causes include a sprain or strain, an infection, and ...

Personal trainer shares three hip flexor strengthening exercises runners can do to build strength and improve performance.

If a muscle or joint feels tight, stretching tends to be people’s first port of call. On the face of it, this approach makes sense, but a movement mechanics expert says it might not be the best ...

Chronic muscle tension could be more than stress. Discover how vitamin D deficiency might be the hidden culprit behind your tightness.

A research group led by Dr. Keisuke Obara, Dr. Kento Yoshioka, and Professor Yoshio Tanaka from the Department of Chemical ...

Muscle tightness might be your nervous system’s way of preventing you from accessing a position it perceives as dangerous. For example, ...

When a muscle isn’t doing its job, your body starts recruiting other muscles to pick up the slack, which can cause stiffness, limited movement, or pain, according to Schwartz.

This was a randomized controlled study approved by the institutional review board of National Taiwan University Hospital (ClinicalTrials.gov ID: NCT01022827; Protocol ID: 200905041R). Patients ...

Background It has been reported that low back pain (LBP) is a major problem in figure skaters. However, the relationship between flexibility or muscle strength and LBP among figure skaters is unclear.