Muscle glycogen synthesis in recovery from intense exercise in humans

Research was conducted to examine the role of lactate and glucose as substrates for glyconeogenesis in muscle in recovery from high-intensity exercise in humans. Seven subjects performed ~100 min of intense intermittent one-legged knee extensor exercise on two occasions, one with and without intense arm exercise between the leg exercise bouts, leading to end exercise arterial plasma lactate concentrations of 16.0 +/- 1.6 and 9.2 +/- 1.6 mmol/l, respectively (P