The effects of short work vs. longer work periods within intermittent exercise on VO2p kinetics, muscle deoxygenation, and energy system contribution

We report novel observations on the effects of differing heavy-intensity work durations between 3-s recovery periods on pulmonary oxygen uptake (Vo2p) kinetics, muscle deoxygenation, and energy system contributions. Relative to continuous exercise, Vo2p kinetics are faster in intermittent exercise, and increased frequency of 3-s recovery periods improves microvascular O2 delivery and reduces Vo2p and arterialized-capillary lactate concentration. The metabolic burden of identical intensity work is altered when performed intermittently vs. continuously.
Source: Journal of Applied Physiology - Category: Physiology Authors: Tags: RESEARCH ARTICLE Source Type: research