爱漫岛

Citation

Astorino TA, Metcalfe RS & Vollaard N (2026) The effect of low volume sprint interval training on cardiorespiratory fitness: study protocol for a definitive randomized controlled trial. Trials. https://doi.org/10.1186/s13063-026-09647-x

Abstract
Background Prior studies show significant increases in cardiorespiratory fitness (V?O2max) and other health-related outcomes in response to reduced exertion high-intensity interval training (REHIT), yet these studies are characterized by small sample sizes which casts doubt on the true efficacy of this form of physical activity for enhancing fitness and health. We propose a definitive randomized controlled exercise training study in a large sample of inactive adults to examine the effects of REHIT on outcomes related to cardiometabolic health in comparison to a non-exercise control group. Methods After baseline testing, 120 inactive men and women ages 18–64 years will be randomized to a non-exercising control group or undergo 12 weeks of REHIT. Participants will be healthy, weight stable, and have BMI?

Keywords
Sprint interval training; Maximal oxygen uptake; Cardiometabolic health; Substrate metabolism; Cardiac output; Feasibility

• The effect of low volume sprint interval training on cardiorespiratory fitness: study protocol for a definitive randomized controlled trial