Fig. 3
From: Functional effects of muscle PGC-1alpha in aged animals
Twenty-four-month-old MCKa animals have less fatigable muscles at the expense of decreased strength (twitch and tetanus force). a Traces of muscle contraction in 24-month-old mice during twitch, tetanus, and fatigue protocols. b AUC of fatigue curves. c Maximum twitch force generated. d Maximum tetanus force generated [n = 5, 4, 5, 4 for 24-month-old WT (male), MCKa (male), WT (female), and MCKa (female) respectively]. *P < 0.05 compared to control