Chapter title |
NIRS Measurements with Elite Speed Skaters: Comparison Between the Ice Rink and the Laboratory.
|
---|---|
Chapter number | 12 |
Book title |
Oxygen Transport to Tissue XXXIV
|
Published in |
Advances in experimental medicine and biology, August 2012
|
DOI | 10.1007/978-1-4614-4989-8_12 |
Pubmed ID | |
Book ISBNs |
978-1-4614-4771-9, 978-1-4614-4989-8
|
Authors |
Hesford C, Cardinale M, Laing S, Cooper CE, Catherine Hesford, Marco Cardinale, Stewart Laing, Chris E. Cooper, Hesford, Catherine, Cardinale, Marco, Laing, Stewart, Cooper, Chris E. |
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. |
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