Methodological limitations of EMG-based bio-mechanical motion analysis
Gespeichert in:
Deutscher übersetzter Titel: | Methodologische Einschränkungen der EMG-basierten biomechanischen Bewegungsanalyse |
---|---|
Autor: | Jöllenbeck, Thomas |
Erschienen in: | Proceedings of the XVIII International Symposium on Biomechanics in Sports, June 25 - 30 2000, Hong Kong [18 International Symposium on Biomechanics in Sports (2000)] |
Veröffentlicht: | Konstanz: 2000, S. 769-772, Lit. |
Forschungseinrichtung: | Universität Konstanz ; The Chinese University of Hong Kong |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Sammelwerksbeitrag |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201110008844 |
Quelle: | BISp |
TY - COLL AU - Jöllenbeck, Thomas A2 - Jöllenbeck, Thomas DB - BISp DP - BISp KW - Analyse, biomechanische KW - Bewegungsanalyse KW - Biomechanik KW - Elektromyographie KW - Sportwissenschaft LA - eng PB - Universität Konstanz CY - Konstanz TI - Methodological limitations of EMG-based bio-mechanical motion analysis TT - Methodologische Einschränkungen der EMG-basierten biomechanischen Bewegungsanalyse PY - 2000 N2 - The purpose of the present study was to investigate the influence of different methods on the identification of the onset of EMG and force. Using the example of electromechanical delay (EMD), results show a rather distinct dependence of onset times of both EMG and force on the applied method and within the threshold values. However, no automatic method has been found for providing reliable and comparable results. For determination of time sensitive values such as EMD, the visual method seems to be the only advisable method regarding accuracy and reliability. This method provides the earliest onset times, lowest threshold levels and a muscle independent course of EMD related to initial muscle length. For other cases of motion analysis or motor research, with some provision for acceptable inaccuracies of about ±20-30ms, this study illustrates why the preferable method should use a moderate low-pass filter and low percentage thresholds. Verf.-Referat L2 - http://w4.ub.uni-konstanz.de/cpa/article/viewFile/2242/2098 SP - S. 769-772 BT - Proceedings of the XVIII International Symposium on Biomechanics in Sports, June 25 - 30 2000, Hong Kong [18 International Symposium on Biomechanics in Sports (2000)] M3 - Elektronische Ressource (online) M3 - Gedruckte Ressource ID - PU201110008844 ER -