Document Detail

Reproducibility of electromyography and ground reaction force during various running techniques.
MedLine Citation:
PMID:  15013499     Owner:  NLM     Status:  MEDLINE    
This study examined the validity of the assumption of electromyographic (EMG) and vertical ground reaction force (GRF) parameter reproducibility during running at different velocities and stride frequencies. Each of 12 female long distance runners ran on a treadmill in combinations of three velocities (2.5, 3.0 and 3.5 m/s) and three stride frequencies (preferred, +/-10% from preferred). Seven parameters from the GRF and five parameters from the EMG signals from five muscles of the lower extremity were evaluated (1000 Hz). The GRF was analysed by a pressure measuring insoles. A total number of three trials for each running condition were recorded. GRF parameters during all running conditions showed high intraclass correlation coefficients (ICC average 0.87). The ICC of the EMG parameters of gastrocnemius medialis and lateralis were high (r>0.69 in 73% of the data), while those for vastus lateralis (22%), hamstrings (42%) and tibialis anterior (51%) were clearly lower. The results revealed that GRF parameters were reproducible during all running techniques indicating that a single trial would provide reproducible GRF-data. The reproducibility of the EMG parameters was not influenced by the running technique but dependent on the parameter itself and on the muscle studied.
Kiros Karamanidis; Adamantios Arampatzis; Gert-Peter Brüggemann
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Gait & posture     Volume:  19     ISSN:  0966-6362     ISO Abbreviation:  Gait Posture     Publication Date:  2004 Apr 
Date Detail:
Created Date:  2004-03-11     Completed Date:  2004-06-25     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9416830     Medline TA:  Gait Posture     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  115-23     Citation Subset:  IM    
Institute for Biomechanics, German Sport University of Cologne, Carl-Diem-Weg 6, Cologne 50933, Germany.
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MeSH Terms
Leg / physiology
Reproducibility of Results
Running / physiology*

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

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