Document Detail


Instructor-Paced vs. Self-Paced Skiing Modes in Older Recreational Alpine Skiers.
MedLine Citation:
PMID:  20838251     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Scheiber, P, Seifert, JG, and Müller, E. Instructor-paced vs. self-paced skiing modes in older recreational alpine skiers. J Strength Cond Res 25(4): 988-996, 2011-Parallel ski steering (PSS), carving in long radii (CLR), and individual technique (IT) skiing modes are mainly used throughout instructor-guided skiing of older recreational skiers. The aims of this study were (a) to determine differences in the physiologic response of older skiers to PSS, CLR, and IT skiing modes, (b) to quantify correlations between rate of perceived exertion (RPE) and the physiologic response, and (c) to analyze the relationship between aerobic capacity, skiing skills, and the blood lactate (LA) response during instructor-guided skiing. Twenty recreational skiers (61.1 ± 5.6 years) performed instructor-paced (PSS and CLR) and self-paced (IT) skiing modes. Heart rate (HR), LA, mean arterial blood pressure (MAP), and RPE were determined during skiing. Skiers skiing skills were judged by expert ski instructors. The aerobic capacity was tested by a physical work capacity test (PWC130) test. Heart rate was lower for PSS (106 ± 15 b·min), compared to CLR (118 ± 16 b·min) and IT (120 ± 15 b·min) skiing modes, both p < 0.001. Lactate levels were 1.45 ± 0.50 mmol·L for PSS, 1.67 ± 0.61 mmol·L for CLR, and 2.00 ± 0.74 mmol·L for IT skiing modes, all p < 0.004. Individual reductions in LA concentrations from 3.9 to 2.6 mmol·L were found, for IT and PSS skiing modes, respectively. No significant correlations were determined between any physiologic variable and RPE. Weak correlations were found between LA and PWC130 results (R < 0.114) and between LA and skiing skills (R < 0.132). In conclusion, significant reductions in the physiologic response were determined for PSS and CLR, compared with IT skiing modes. Instructor-paced skiing modes may minimize the risk of premature fatigue of skiers with high physiological responses. Those skiers may not perceive their disproportionate higher stress compared with skiers on the low end.
Authors:
Peter Scheiber; John G Seifert; Erich Müller
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  25     ISSN:  1533-4287     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-03-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  988-96     Citation Subset:  IM    
Affiliation:
1Christian Doppler Laboratory, Biomechanics in Skiing, Department of Sport Science and Kinesiology, University of Salzburg, Salzburg, Austria; and 2Movement Science Laboratory, Montana State University, Bozeman, Montana.
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