Fig. 4

Change in contraction time (ms) across time points and conditions. CTRL—control condition (without ICA); RAPID – isometric muscle action condition with 1 s per 9 repetitions; SUST– isometric muscle action condition with 3 s per 3 repetitions; 3 min – 3rd-minute post-ICA, 6 min – 6th-minute post-ICA, 9 min – 9th-minute post-ICA, 12 min – 12th-minute post-ICA.