|Appears in Collections:||Faculty of Health Sciences and Sport Journal Articles|
|Peer Review Status:||Refereed|
|Title:||Effect of Number of Sprints in a SIT Session on Change in VO2max: A Meta-analysis (Forthcoming/Available Online)|
|Citation:||Vollaard N, Metcalfe R & Williams S (2017) Effect of Number of Sprints in a SIT Session on Change in VO2max: A Meta-analysis (Forthcoming/Available Online), Medicine and Science in Sports and Exercise.|
|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.|
|Rights:||This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. This is a non-final version of an article published in final form in Medicine & Science in Sports & Exercise published by American College of Sports Medicine. Available at: https://doi.org/10.1249/MSS.0000000000001204|
|Vollaard et al 2016 MSSE.pdf||626.83 kB||Adobe PDF||Under Embargo until 10/1/2018 Request a copy|
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