Abstract
This article reviews current evidence regarding neuromuscular regulation and metabolism during exercise. Particular emphases are given on the relationship between motor unit (MU) activity, including single MU analysis results and spinal a-motoneuron excitability, and cardio-respiratory response and blood lactate during dynamic exercise. In addition, a close physiological link between muscle energy metabolism and excitation-contraction processes (failure of one will affect the extent of the other) is summarized in the light of recent nuclear magnetic resonance (NMR) studies and results of neuromuscular disorder patients.
