Does high intensity interval training alter cardiac substrate utilization and reduce oxygen consumption compared to moderate intensity training?
High intensity interval training improves cardiac energetics and substrate utilization, providing a physiological basis for its superior effects on aerobic capacity.
This study shows that high intensity training is required for induction of changes in cardiac substrate utilization and energetics, which may contribute to the superior effects of high compared with moderate intensity training in terms of increasing aerobic capacity.
Hafstad et al. (Fri,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: