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Decreasing sprint duration from 20 to 10 s during reduced-exertion high-intensity interval training (REHIT) attenuates the increase in maximal aerobic capacity but has no effect on affective and perceptual responses.

Nalcakan, Gulbin R, Songsorn, Preeyaphorn, Fitzpatrick, Ben L, Yuzbasioglu, Yasin, Brick, Noel E, Metcalfe, Richard S and Vollaard, Niels B J (2017) Decreasing sprint duration from 20 to 10 s during reduced-exertion high-intensity interval training (REHIT) attenuates the increase in maximal aerobic capacity but has no effect on affective and perceptual responses. Applied physiology, nutrition, and metabolism, 43 . [Journal article]

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URL: https://www.ncbi.nlm.nih.gov/pubmed/29172029

DOI: 10.1139/apnm-2017-0597

Abstract

Purpose: Recent studies have demonstrated that modifying the ‘classic’ 6x30-s ‘all-out’ sprint interval training (SIT) protocol by incorporating either shorter sprints (6x10-s or 15-s sprints) or fewer sprints (e.g. 2x20-s sprints; reduced-exertion high-intensity interval training (REHIT)) does not attenuate the training-induced improvements in maximal aerobic capacity (VO2max). The aim of the present study was to determine whether reducing the sprint duration in the REHIT protocol from 20 s to 10 s per sprint influences acute affective responses and the change in VO2max following training. Methods: Thirty-six sedentary or recreationally active participants (17 women; mean ± SD age: 22±3 y, BMI: 24.5±4.6 kg·m-2, VO2max: 37±8 mL·kg-1·min-136 ) were randomised to a group performing a ‘standard’ REHIT protocol involving 2x20-s sprints or a group who performed 2x10-s sprints. VO2max was determined before and after 6 weeks of 3 weekly training sessions. Acute affective responses and perceived exertion were assessed during training.Results: Greater increases in VO2max were observed for the group performing 20-s sprints(2.77±0.75 to 3.04±0.75 L·min-1 ; +10%) compared to the group performing 10-s sprints (2.58±0.57 vs. 2.67±3.04 L·min-1 ; +4%; group × time interaction effect: p<0.05; d=1.06). Positive affect and the mood state vigour increased post-exercise, while tension, depression and total mood disturbance decreased, and negative affect remained unchanged. Affective responses and perceived exertion were not altered by training and were not different between groups. Conclusion: Reducing sprint duration in the REHIT protocol from 20 s to 10 s attenuates improvements in VO2max, and does not result in more positive affective responses or lower perceived exertion.

Item Type:Journal article
Keywords:VO2max, sprint interval training, SIT, Wingate sprint, affect
Faculties and Schools:Faculty of Life and Health Sciences > School of Sport
Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Psychology
Research Institutes and Groups:Psychology Research Institute > Health, Education and Well-being
Psychology Research Institute
ID Code:39108
Deposited By: Dr Noel Brick
Deposited On:12 Dec 2017 09:56
Last Modified:09 Feb 2018 14:46

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