Effect of stretch exercises on suxamethonium induced fasciculations and myalgia.

Muscle fasciculations and pain following the administration of suxamethonium were assessed in a group of patients who performed a series of stretch exercises approximately 1 h before operation. Comparison was made with a group who received suxamethonium but no pretreatment. Fasciculations were significantly reduced in the exercised group, and the incidence of muscle pain decreased from 52% in the untreated group to 12% in the exercised group. A significant relationship was shown between the severity of visible fasciculations and muscle pain.