Post‐exercise intramuscular O₂ supply is tightly coupled with a higher proximal‐to‐distal ATP synthesis rate in human tibialis anterior

The post-exercise recovery of phosphocreatine, a measure of the oxidative capacity of muscles, as assessed by 31 P MR spectroscopy, shows a striking increase from distal to proximal along the human tibialis anterior muscle. To investigate why this muscle exhibits a greater oxidative capacity proximally, we tested whether the spatial variation in phosphocreatine recovery rate is related to oxygen supply, muscle fibre type or type of exercise. We...