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)

Gavin Thomas, Preeyaphorn Songsorn, Aimee Gorman, Ben Brackendridge, Tom Cullen, Ben L. Fitzpatrick, Richard S. Metcalf, Niels B. J. Vollaard

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Abstract

In the present randomised-controlled trial we investigated the effect of reduced-exertion high-intensity interval training (REHIT) training frequency (2, 3, or 4 sessions/week for 6 weeks) on maximal aerobic capacity in 42 inactive individuals (13 women; mean ± SD age: 25 ± 5 years, maximal aerobic capacity: 35 ± 5 mL·kg −1·min −1). Changes in maximal aerobic capacity were not significantly different between the 3 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 maximal aerobic capacity. Novelty • 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 maximal aerobic capacity.

Original languageEnglish
Pages (from-to)683-685
Number of pages3
JournalApplied Physiology, Nutrition, and Metabolism
Volume45
Issue number6
Early online date20 Feb 2020
DOIs
Publication statusE-pub ahead of print - 20 Feb 2020

Bibliographical note

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Keywords

  • Exercise
  • Health
  • SIT
  • Sprint interval training
  • VO
  • Wingate sprint

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Physiology
  • Nutrition and Dietetics
  • Physiology (medical)

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