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Title: Ischemic preconditioning enhances critical power during a 3 minute all-out cycling test
Authors: Griffin, Patrick J.
Ferguson, Richard A.
Gissane, Conor
Bailey, Stephen J.
Patterson, Stephen D.
Keywords: W Prime
High intensity exercise
Near-infrared spectroscopy
Issue Date: 2018
Publisher: © Taylor and Francis
Citation: GRIFFIN, P.J. ... et al, 2018. Ischemic preconditioning enhances critical power during a 3 minute all-out cycling test. Journal of Sport Sciences, 36(9), pp.1038-1043.
Abstract: This study tested the hypothesis that ischemic preconditioning (IPC) would increase critical power (CP) during a 3 minute all-out cycling test. Twelve males completed two 3 minute all-out cycling tests, in a crossover design, separated by 7 days. These tests were preceded by IPC (4 x 5 minute intervals at 220 mmHg bilateral leg occlusion) or SHAM treatment (4 x 5 minute intervals at 20 mmHg bilateral leg occlusion). CP was calculated as the mean power output during the final 30 s of the 3 minute test with W′ taken as the total work done above CP. Muscle oxygenation was measured throughout the exercise period. There was a 15.3 ± 0.3% decrease in muscle oxygenation (TSI; [Tissue saturation index]) during the IPC stimulus, relative to SHAM. CP was significantly increased (241 ± 65 W vs. 234 ± 67 W), whereas W′ (18.4 ± 3.8 vs 17.9 ± 3.7 kJ) and total work done (TWD) were not different (61.1 ± 12.7 vs 60.8 ± 12.7 kJ), between the IPC and SHAM trials. IPC enhanced CP during a 3 minute all-out cycling test without impacting W′ or TWD. The improved CP after IPC might contribute towards the effect of IPC on endurance performance.
Description: This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sport Sciences on 7 July 2017, available online: http://www.tandfonline.com/10.1080/02640414.2017.1349923.
Version: Accepted for publication
DOI: 10.1080/02640414.2017.1349923
URI: https://dspace.lboro.ac.uk/2134/25837
Publisher Link: http://dx.doi.org/10.1080/02640414.2017.1349923
ISSN: 0264-0414
Appears in Collections:Published Articles (Sport, Exercise and Health Sciences)

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