Mean motor unit firing rate

Older age has no effect on mean motor unit firing rate in humans (Similar ranges: approximately 8 Hz at 25% MVC to approximately 22 Hz at 100% MVC).

“there were no statistically significant differences in mean motor unit firing rates (MUFRs) between young and old men.”

Humansisometric contractions in active young and old menlateral and medial gastrocnemius25, 50, 75 and 100% MVCmales

Motor unit firing rates of the gastrocnemii during maximal and sub-maximal isometric contractions in young and old men

Neuroscience·Jun 11, 2016