Document Detail

Correlations between physiological variables and performance in high level cross country off road cyclists.
MedLine Citation:
PMID:  16183772     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: To examine the relations between maximal and submaximal indices of aerobic fitness and off road cycling performance in a homogeneous group of high level mountain bikers. METHODS: 12 internationally competitive mountain bikers completed the study. Maximum oxygen uptake (Vo(2max)), peak power output (PPO), power output (PO), and oxygen uptake (Vo(2)) at first (VT) and second (RCT) ventilatory thresholds were measured in the laboratory, and correlated with race time during a cross country circuit race. RESULTS: The only physiological indices of aerobic fitness correlated with off road cycling performance were PO and Vo(2) at RCT when normalised to body mass (r = -0.63 and r = -0.66, respectively; p<0.05). VT, Vo(2max), and PPO were not correlated to performance in this homogeneous group of high level mountain bikers. CONCLUSIONS: The results of this study suggest that submaximal indices of aerobic fitness such as PO and Vo(2) at RCT are more important determinants of off road cycling performance than maximal indices such as PPO and Vo(2max). This study confirms the importance of body mass for mountain biking performance. As aerobic fitness explained only 40% of the variance, other physiological and technical factors should be investigated, as they may be important determinants of cross country performance among elite mountain bikers.
F M Impellizzeri; S M Marcora; E Rampinini; P Mognoni; A Sassi
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  British journal of sports medicine     Volume:  39     ISSN:  1473-0480     ISO Abbreviation:  Br J Sports Med     Publication Date:  2005 Oct 
Date Detail:
Created Date:  2005-09-26     Completed Date:  2005-11-15     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  0432520     Medline TA:  Br J Sports Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  747-51     Citation Subset:  IM    
Human Performance Laboratory, S S Mapei, Castellanza 21053, Italy.
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MeSH Terms
Bicycling / physiology*
Ergometry / methods
Exercise / physiology*
Exercise Test / methods
Heart Rate / physiology
Oxygen Consumption / physiology
Physical Endurance / physiology
Physical Fitness / physiology*

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