Document Detail

Effects of pedal type and pull-up action during cycling.
MedLine Citation:
PMID:  18418807     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to determine the influence of different shoe-pedal interfaces and of an active pulling-up action during the upstroke phase on the pedalling technique. Eight elite cyclists (C) and seven non-cyclists (NC) performed three different bouts at 90 rev . min (-1) and 60 % of their maximal aerobic power. They pedalled with single pedals (PED), with clipless pedals (CLIP) and with a pedal force feedback (CLIPFBACK) where subjects were asked to pull up on the pedal during the upstroke. There was no significant difference for pedalling effectiveness, net mechanical efficiency (NE) and muscular activity between PED and CLIP. When compared to CLIP, CLIPFBACK resulted in a significant increase in pedalling effectiveness during upstroke (86 % for C and 57 % NC, respectively), as well as higher biceps femoris and tibialis anterior muscle activity (p < 0.001). However, NE was significantly reduced (p < 0.008) with 9 % and 3.3 % reduction for C and NC, respectively. Consequently, shoe-pedal interface (PED vs. CLIP) did not significantly influence cycling technique during submaximal exercise. However, an active pulling-up action on the pedal during upstroke increased the pedalling effectiveness, while reducing net mechanical efficiency.
G Mornieux; B Stapelfeldt; A Gollhofer; A Belli
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-04-17
Journal Detail:
Title:  International journal of sports medicine     Volume:  29     ISSN:  0172-4622     ISO Abbreviation:  Int J Sports Med     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-10-31     Completed Date:  2009-01-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  817-22     Citation Subset:  IM    
Institut für Sport und Sportwissenschaft, Universität Freiburg, Freiburg, Germany.
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MeSH Terms
Athletic Performance / physiology
Equipment Design*
Human Engineering*
Muscle Contraction / physiology
Oxygen Consumption
Pulmonary Gas Exchange

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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