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Impact of the initial classic section during a simulated cross-country skiing skiathlon on the cardiopulmonary responses during the subsequent period of skate skiing
Clinical Investigation Centre in Technologic Innovation, INSERM CIT808, University Hospital of Besançon, France .
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences. (NVC)
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences. (NVC)
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences. (NVC)
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2014 (English)In: Applied Physiology, Nutrition and Metabolism, ISSN 1715-5320, Vol. 39, no 8, 911-919 p.Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to assess potential changes in the performance and cardiorespiratory responses of elite cross-country skiers following transition from the classic (CL) to the skating (SK) technique during a simulated skiathlon. Eight elite male skiers performed two 6 km (2 × 3 km) roller-skiing time trials on a treadmill at racing speed: one starting with the classic and switching to the skating technique (CL1-SK2) and another employing the skating technique throughout (SK1-SK2), with continuous monitoring of gas exchanges, heart rates, and kinematics (video). The overall performance times in the CL1-SK2 (21:12 ± 1:24) and SK1-SK2 (20:48 ± 2:00) trials were similar, and during the second section of each performance times and overall cardiopulmonary responses were also comparable. However, in comparison with SK1-SK2, the CL1-SK2 trial involved significantly higher increases in minute ventilation (VE, 89.8 ± 26.8 vs. 106.8 ± 17.6 L·min-1) and oxygen uptake (VO2; 3.1 ± 0.8 vs 3.5 ±0.5 L·min-1) 2 min after the transition as well as longer time constants for VE, VO2, and heart rate during the first 3 min after the transition. This higher cardiopulmonary exertion was associated with ~3% faster cycle rates. In conclusion, overall performance during the 2 time trials did not differ. The similar performance times during the second sections were achieved with comparable mean cardiopulmonary responses. However, the observation that during the initial 3-min post-transition following classic skiing cardiopulmonary responses and cycle rates were slightly higher supports the conclusion that an initial section of classic skiing exerts an impact on performance during a subsequent section of skate skiing.

Place, publisher, year, edition, pages
2014. Vol. 39, no 8, 911-919 p.
Keyword [en]
Heart rate, Kinematics, Lower-body, Oxygen pulse, Oxygen uptake, Performance, Skier, Upper-body, Ventilation
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:miun:diva-22631DOI: 10.1139/apnm-2013-0550ISI: 000341559700007Scopus ID: 2-s2.0-84905195597OAI: oai:DiVA.org:miun-22631DiVA: diva2:748961
Note

Correspondence Address: Mourot, L.; EA 4660 Culture Sport Health Society and Exercise Performance, Health, Innovation Platform, University of Franche-Comté, 19 rue A Paré, Batiment Socrate - Plateforme EPSI, F-25030 Besancon, France; email: laurent.mourot@univ-fcomte.fr

Available from: 2014-09-22 Created: 2014-08-20 Last updated: 2014-10-13Bibliographically approved

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Fabre, NicolasAndersson, ErikWillis, Sarah J.Hébert-Losier, KimHolmberg, Hans-Christer
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