This finding suggests that rigidity is induced by muscle activity changes, rather than by muscle architecture. The authors also revealed that, in patients with PD, rigidity took 1–2 min to react ...

Objective: To describe the use of intravenous magnesium sulfate for the control of muscle spasms and severe generalized rigidity in a child with moderate to severe tetanus without the need for ...

The physical exam demonstrated generalized and painful muscle rigidity with intermittent muscle spasms, trismus, risus sardonicus, nuchal rigidity, mild opisthotonus, abdominal rigidity ...