| Ski mountaineering competition: fit for it? | |
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MedLine Citation:
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PMID: 21358501 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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OBJECTIVE: : To examine the physiological characteristics of experienced ski mountaineers and to determine the physical demands of ski mountaineering competition. DESIGN: : Descriptive field study. SETTING: : An international ski mountaineering competition characterized by 20 400 m distance and 1869 m altitude difference that took place in March 2009 in the South Tyrolean Alps (Italy). PARTICIPANTS: : Nine healthy and experienced male ski mountaineers. INTERVENTIONS: : Bioimpedance measurements for body composition definition; maximal exercise testing (Bruce protocol) to determine maximal heart rate (HRmax), maximal oxygen uptake (&OV0312;o2max), and ventilatory thresholds (VT1 and VT2) and to define individual exercise intensity zones; HR registration during competition. MAIN OUTCOME MEASURES: : Exercise intensity distribution, occurrence of respiratory symptoms. RESULTS: : Ventilatory thresholds were found on average at 70.5% ± 5.0% (VT1) and 90.9% ± 2.6% (VT2) of &OV0312;o2max (68.18 ± 6.11 mL·kg·minute). The overall exercise intensity, defined by the ratio between mean HR during competition and maximal HR in the laboratory (0.87 ± 0.02), was high. Partial times (% of race time) spent competing in 4 defined performance zones were on average 20.4% ± 17.0% (maximal intensity), 59.8% ± 12.5% (high intensity), 12.8% ± 5.6% (moderate intensity), and 7.0% ± 5.9% (low intensity). Five participants reported respiratory discomfort during competition, with cough being the most frequent symptom. Statistical analysis revealed percent body fat mass to correlate with the partial time performed above VT2 (r = 0.782, P < 0.05); the latter was associated with a worse final placement (r = 0.734, P < 0.05). CONCLUSIONS: : Competitive ski mountaineering is characterized by an important cardiopulmonary strain and requires a high degree of physical fitness. |
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Authors:
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Kai Schenk; Martin Faulhaber; Hannes Gatterer; Martin Burtscher; Marcello Ferrari |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine Volume: 21 ISSN: 1536-3724 ISO Abbreviation: Clin J Sport Med Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-03-01 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9103300 Medline TA: Clin J Sport Med Country: United States |
Other Details:
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Languages: eng Pagination: 114-8 Citation Subset: IM |
Affiliation:
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From the *Department of Medicine, School of Sports Medicine, University of Verona, Verona, Italy; †Italian Sports Medicine Federation (FMSI), Regional Section of Bolzano, Bolzano, Italy; and ‡Department of Sport Sciences, Medical Section, University of Innsbruck, Innsbruck, Austria. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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