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Effect of Number of Sprints in a SIT Session on Change in VO2max: A Meta Analysis

Vollaard, Niels BJ, Metcalfe, Richard and Williams, Sean (2017) Effect of Number of Sprints in a SIT Session on Change in VO2max: A Meta Analysis. Medicine and Science in Sports and Exercise, ePub . [Journal article]

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URL: http://journals.lww.com/acsm-msse/Abstract/publishahead/Effect_of_Number_of_Sprints_in_a_SIT_Session_on.97308.aspx

DOI: 10.1249/MSS.0000000000001204

Abstract

Purpose: Recent meta-analyses indicate that sprint interval training (SIT) improves cardiorespiratory fitness (V[Combining Dot Above]O2max), but the effects of various training parameters on the magnitude of the improvement remain unknown. The present meta-analysis examined the modifying effect of the number of sprint repetitions in a SIT session on improvements in V[Combining Dot Above]O2max.Methods: The databases PubMed and Web of Science were searched for original studies that have examined pre- and post-training V[Combining Dot Above]O2max in adults following >=2 weeks of training consisting of repeated (>=2) Wingate-type cycle sprints, published up to 1 May 2016. Articles were excluded if they were not in English, involved patients, athletes, or participants with a mean baseline V[Combining Dot Above]O2max of >55 mL[middle dot]kg-1[middle dot]min-1 or a mean age <18 years, and if a SIT trial was combined with another intervention or used intervals shorter than 10 s. A total of 38 SIT trials from 34 studies were included in the meta-analysis. Probabilistic magnitude-based inferences were made to interpret the outcome of the analysis.Results: The meta-analysis revealed a likely large effect of a typical SIT intervention on V[Combining Dot Above]O2max (mean +/- 90 CL %: 7.8% +/- 4.0%) with a possibly small modifying effect of the maximum number of sprint repetitions in a training session (-1.2 +/- 0.8% decrease per 2 additional sprint repetitions). Apart from possibly small effects of baseline V[Combining Dot Above]O2max and age, all other modifying effects were unclear or trivial.Conclusion: We conclude that the improvement in V[Combining Dot Above]O2max with SIT is not attenuated with fewer sprint repetitions, and possibly even enhanced. This means that SIT protocols can be made more time-efficient, which may help SIT to be developed into a viable strategy to impact public health.

Item Type:Journal article
Keywords:systematic review; cardiorespiratory fitness; aerobic capacity; sprint interval training
Faculties and Schools:Faculty of Life and Health Sciences > School of Sport
Faculty of Life and Health Sciences
Research Institutes and Groups:Sport and Exercise Sciences Research Institute
Sport and Exercise Sciences Research Institute > Centre for Physical Activity and Health
ID Code:36667
Deposited By: Mr Richard Metcalfe
Deposited On:17 Jan 2017 09:21
Last Modified:10 Jan 2018 23:23

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