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Exercise Training Comprising of Single 20‑s Cycle Sprints Does Not Provide a Sufficient Stimulus for Improving Maximal Aerobic Capacity in Sedentary Individuals

Songsorn, P. and Lambeth‑Mansell, Annie and Mair, J.L. and Haggett, M. and Fitzpatrick, B.L. and Ruffino, J. and Holliday, Adrian and Metcalfe, R.S. and Vollaard, N.B.J. (2016) Exercise Training Comprising of Single 20‑s Cycle Sprints Does Not Provide a Sufficient Stimulus for Improving Maximal Aerobic Capacity in Sedentary Individuals. European Journal of Applied Physiology, 116 (8). pp. 1511-1517. ISSN Print: 1439-6319 ESSN: 1439-6327

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Songsorn, P. et al., 2016. Exercise training comprising of single 20-s cycle sprints does not provide a sufficient stimulus for improving maximal aerobic capacity in sedentary individuals. E.pdf - Published Version
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Abstract

Purpose Sprint interval training (SIT) provides a potent stimulus for improving maximal aerobic capacity (V˙ O2max ), which is among the strongest markers for future cardiovascular health and premature mortality. Cycling-based SIT protocols involving six or more ‘all-out’ 30-s Wingate sprints per training session improve V˙ O2max , but we have recently demonstrated that similar improvements in V˙ O2max can be achieved with as few as two 20-s sprints. This suggests that the volume of sprint exercise has limited influence on subsequent training adaptations. Therefore, the aim of the present study was to examine whether a single 20-s cycle sprint per training session can provide a sufficient stimulus for improving V˙ O2max. Methods Thirty sedentary or recreationally active participants(10 men/20 women; mean ± SD age: 24 ± 6 years, BMI: 22.6 ± 4.0 kg m−2, V˙ O2max: 33 ± 7 mL kg−1 min−1) were randomised to a training group or a no-intervention control group. Training involved three exercise sessions per week for 4 weeks, consisting of a single 20-s Wingate sprint (no warm-up or cool-down). V˙ O2max was determined prior to training and 3 days following the final training session.Results Mean V˙ O2max did not significantly change in the training group (2.15 ± 0.62 vs. 2.22 ± 0.64 L min−1) or the control group (2.07 ± 0.69 vs. 2.08 ± 0.68 L min−1; effect of time: P = 0.17; group × time interaction effect: P = 0.26). Conclusion Although we have previously demonstrated that regularly performing two repeated 20-s ‘all-out’ cycle sprints provides a sufficient training stimulus for a robust increase in V˙ O2max, our present study suggests that this is not the case when training sessions are limited to a single sprint.

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Uncontrolled Keywords: sprint interval training (SIT), cardiovascular health, sedentary or recreationally active participants, VO2max, High-intensity interval training, Wingate sprint, Sprint interval
Subjects: H Social Sciences > H Social Sciences (General)
Divisions: Academic Departments > Institute of Science and the Environment
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Copyright Info: Open Access article
Depositing User: Annie Lambeth-Mansell
Date Deposited: 22 Nov 2016 08:55
Last Modified: 24 Nov 2016 08:24
URI: https://eprints.worc.ac.uk/id/eprint/5090

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