Figure 4. Skeletal muscle AMPK α1 and α2 activity.

AMPK α1 (A) and α2 activity (B). Muscle samples were obtained before exercise (rest), after 30 min and immediately following 120 min of steady‐state exercise at ∼65% ${\dot{V}}_{{\mathrm{O}}_2\mathrm{peak}}$ in untrained and exercise trained participants. Data are the mean ± SD, n = 11 untrained, 7 trained. ^*Significantly different from corresponding trained value (P < 0.05). ^§Main effect for time (P < 0.05).