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 ...

Moshé Feldenkrais was born in Ukraine in 1904, then part of the Russian Empire. Three major influences shaped the life of Feldenkrais: soccer, judo, and his studies in physics. His soccer career ended ...

Spastic cerebral palsy is a disorder that involves muscle stiffness. Symptoms and signs may include difficulty walking, trouble manipulating objects, and vision, hearing, or speech challenges.

Parkinson’s disease is a disorder of the central nervous system that gets worse over time with no cure. Because it targets the nervous system, it impairs movement. ‌Rigidity is one of the leading ...

Medically reviewed by Diana Apetauerova, MDMedically reviewed by Diana Apetauerova, MD Rigidity—when your muscles are stiff and resist moving—is one of the primary symptoms of Parkinson's disease. It ...