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Muscle oxygenation asymmetry in ice speed skaters is not compensated by compression
Dept. of Sport Science, University of Wuppertal, Wuppertal, Germany . (Swedish Winter Sports Reserarch Centre)
Inst. of Training Science and Sport Informatics, German Sport University Cologne, Cologne, Germany . (Swedish Winter Sports Research Centre)
Dept. of Sport Science, University of Wuppertal, Wuppertal, Germany .
Dept. of Sport Science, University of Wuppertal, Wuppertal, Germany .
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2014 (Engelska)Ingår i: International Journal of Sports Physiology and Performance, ISSN 1555-0265, E-ISSN 1555-0273, Vol. 9, nr 1, s. 58-67Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

PURPOSE:

The present investigation assessed tissue oxygenation and local blood volume in both vastus lateralis muscles during 3000 m race simulations in elite speed skaters on ice and the effects of leg compression on physiological, perceptual and performance measures.

METHODS:

Ten (6 female) elite ice speed skaters completed two on-ice trials with and without leg compression. Tissue oxygenation and local blood volume in both vastus lateralis muscles was assessed by applying near-infrared spectroscopy (NIRS). Continuous measures of oxygen uptake, ventilation, heart rate and velocity were conducted throughout the race simulations as well as blood lactate concentration and ratings of perceived exertion before and after the trials. In addition, lap times were assessed.

RESULTS:

The investigation of tissue oxygenation in both vastus lateralis muscles revealed an asymmetry (P<0.00; effect size=1.81) throughout the 3000 m race simulation. The application of leg compression did not affect oxygenation asymmetry (smallest P=0.99; largest effect size=0.31) or local blood volume (P=0.33; 0.95). Lap times (P=0.88; 0.43), velocity (P=0.24; 0.84), oxygen uptake (P=0.79; 0.10), ventilation (P=0.11; 0.59), heart rate (P=0.21; 0.89), blood lactate concentration (P=0.82; 0.59) and ratings of perceived exertion (P=0.19; 1.01) were also unaffected by the different types of clothing.

CONCLUSION:

Elite ice speed skaters show an asymmetry in tissue oxygenation of both vastus lateralis muscles during 3000 m events remaining during the long gliding phases along the straight sections of the track. Based on our data, we conclude no performance enhancing benefits from wearing leg compression under a normal racing suit.

Ort, förlag, år, upplaga, sidor
2014. Vol. 9, nr 1, s. 58-67
Nyckelord [en]
Aerobic exercise, Blood flow, Garments, NIRS, Tissue saturation index, Venous return
Nationell ämneskategori
Medicin och hälsovetenskap
Identifikatorer
URN: urn:nbn:se:miun:diva-18146DOI: 10.1123/IJSPP.2012-0210ISI: 000333364200010PubMedID: 23239684Scopus ID: 2-s2.0-84892939754OAI: oai:DiVA.org:miun-18146DiVA, id: diva2:583827
Projekt
Swedish Winter SportsTillgänglig från: 2013-01-08 Skapad: 2013-01-08 Senast uppdaterad: 2017-12-06Bibliografiskt granskad

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Holmberg, Hans-Christer

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