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NIRS measurements with elite speed skaters: comparison between the ice rink and the laboratory.

Hesford, Catherine and Cardinale, Marco and Laing, Stewart and Cooper, Chris E (2013) 'NIRS measurements with elite speed skaters: comparison between the ice rink and the laboratory.' Adv Exp Med Biol, 765. 81 - 86. ISSN 0065-2598

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Abstract

Wearable, wireless near-infrared (NIR) spectrometers were used to compare changes in on-ice short-track skating race simulations over 1,500 m with a 3-min cycle ergometry test at constant power output (400 W). The subjects were six male elite short-track speed skaters. Both protocols elicited a rapid desaturation (∆TSI%) in the muscle during early stages (initial 20 s); however, asymmetry between right and left legs was seen in ΔTSI% for the skating protocol, but not for cycling. Individual differences between skaters were present in both protocols. Notably, one individual who showed a relatively small TSI% change (-10.7%, group mean = -26.1%) showed a similarly small change during the cycling protocol (-5.8%, group mean = -14.3%). We conclude that NIRS-detected leg asymmetry is due to the specific demands of short-track speed skating. However, heterogeneity between individuals is not specific to the mode of exercise. Whether this is a result of genuine differences in physiology or a reflection of differences in the optical properties of the leg remains to be determined.

Item Type: Article
Uncontrolled Keywords: Adult, Biomechanical Phenomena, Computer Simulation, Humans, Leg, Male, Muscles, Oxygen Consumption, Skating, Spectroscopy, Near-Infrared
Subjects: Q Science > QH Natural history > QH301 Biology
Depositing User: Users 161 not found.
Date Deposited: 19 Dec 2014 11:03
Last Modified: 01 Aug 2019 21:17
URI: http://repository.essex.ac.uk/id/eprint/10197

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