Isometric elbow strength in normal individuals.

Isometric elbow strength was measured with torque cell dynamometers in a group of 104 normal subjects. Their mean age was 43 years (range, 21-79 years). Test functions included elbow flexion and extension, forearm pronation and supination, and grip. In general, the men were twice as strong as the women, and the dominant extremities were 6% stronger than the nondominant. The mean extension strength was 61% of that of flexion, and pronation was 86% of supination.