Tight and rigid muscles are often the result of injury. Sometimes, muscle tightness and rigidity can occur with other symptoms, such as muscle pain and spasms, or reduced mobility. Mild muscle ...

You’ve tried everything. Stretching routines, massage therapy, foam rolling, hot baths, and still, that nagging tightness in your muscles persists. Before you book another bodywork session or invest ...

Work out enough and you’ll soon encounter muscle tightness, but what causes it and can it be treated or avoided? When you purchase through links on our site, we may earn an affiliate commission.

Difficulty standing up after sitting is usually caused by muscle stiffness, joint issues, or poor circulation. However, if it ...

Skeletal muscle channelopathies and myotonic disorders constitute a heterogeneous group of neuromuscular conditions caused by mutations that impair the function of ion channels, including sodium and ...

Anyone who has had tight muscles or a muscle spasm knows how uncomfortable and limiting these experiences can be. But when you have spasticity, which causes tight muscles and uncontrollable ...

Muscle relaxers help reduce muscle stiffness and pain from conditions like cerebral palsy and lower back pain. There are two main types of muscle relaxers: antispastics and antispasmodics. Muscle ...

Panel A shows the microscopic myoarchitecture of the circular and longitudinal muscle layers of the lower esophageal sphincter and stomach. The circular muscle fibers of the esophagus cross each other ...

Feeling stiffer in winter? Know how cold weather impacts joints and muscles, causes pain and stiffness, and discover simple ...

Muscle tightness is a feeling you’ll know all too well if you’ve pushed yourself that little bit harder while training. Some consider it to be the hallmark of a full-blooded workout while to others, ...