Polio had struck him down, and although he made a good recovery, a certain muscular weakness of the arms and shoulders remained.

Exposure to the chemical stimulates the nervous system causing headaches, nausea, dizziness, blurred vision, confusion and muscular weakness.

The nicotinic symptoms of cholinergic poisoning are therefore fatigue, involuntary twitching, muscular weakness, hypertension and hyperglycemia.

The forced vital capacity may be monitored at intervals to detect increasing muscular weakness.

Individuals with muscular weakness, occult instability, and decreased postural control are more susceptible to ankle injury than those with better postural control.