Reducing training frequency from 3 or 4 sessions/week to 2 sessions/week does not attenuate improvements in maximal aerobic capacity with reduced-exertion high-intensity interval training (REHIT)

Thomas, Gavin ORCID: https://orcid.org/0000-0002-4662-1588, Songsorn, P., Gorman, A., Brackenridge, B., Cullen, Tom, Fitzpatrick, B.L., Metcalfe, R. and Vollaard, N. (2020) Reducing training frequency from 3 or 4 sessions/week to 2 sessions/week does not attenuate improvements in maximal aerobic capacity with reduced-exertion high-intensity interval training (REHIT). Applied Physiology, Nutrition, and Metabolism, 45 (6). pp. 683-685. ISSN 1715-5312 Online: 1715-5320

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Abstract

In the present randomised-controlled trial we investigated the effect of REHIT training frequency (2/3/4 sessions/week for 6 weeks) on maximal aerobic capacity (V̇O2max) in 42 inactive individuals (13 women; mean±SD age: 25±5 y, V̇O2max: 35±5 mL·kg-1·min-1). Changes in V̇O2max were not significantly different between the three groups (2 sessions/week: +10.2%; 3 sessions/week: +8.1%; 4 sessions per week: +7.3%). In conclusion, a training frequency of 2 sessions/week is sufficient for REHIT to improve V̇O2max.

We demonstrate that reducing REHIT training frequency from 3 or 4 to 2 sessions/week does not attenuate improvements in the key health marker of V̇O2max.

Key words:
V̇O2max; sprint interval training; SIT; Wingate sprint; exercise; health

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