what is muscle tightening
Muscle stiffness is a condition in which muscles feel tight and contracted rather than the usual supple state of muscles at rest.Itâs also called stiff muscles, rigidity, and in severe cases, spasticity.Muscle stiffness is a feeling of tension and contraction in the muscles.In other words, your muscles feel like they are always flexed. This stiffness may limit your normal range of motion.tâs also called stiff muscles, rigidity, and in severe cases, spasticity. Muscle stiffness is a feeling of tension and contraction in the muscles. In other words, your muscles feel like they are always flexed. This stiffness may limit your normal range of motion.