Monster A W, Chan H, O'Connor D
Science. 1978 Apr 21;200(4339):314-7. doi: 10.1126/science.635587.
The muscle activity of normal ambulatory individuals was recorded continuously for 8-hour (working day) periods. Parameters of activity patterns were defined and numerical outcomes for these parameters were compared across a diverse population of muscles. Several pattern parameters, such as the average percentage of time active, were highly correlated with the percentage of type I fibers of a muscle.
