tailieunhanh - báo cáo hóa học:" Effect of shoe heel height on vastus medialis and vastus lateralis electromyographic activity during sit to stand"

Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : Effect of shoe heel height on vastus medialis and vastus lateralis electromyographic activity during sit to stand | Journal of Orthopaedic Surgery and Research Research article BioMed Central Open Access Effect of shoe heel height on vastus medialis and vastus lateralis electromyographic activity during sit to stand Lindsay Edwards1 John Dixon 2 Jillian R Kent2 David Hodgson2 and Vicki J Whittaker2 Address Walsall Teaching Primary Care Trust Jubilee House Bloxwich Lane Walsall UK and 2School of Health and Social Care University of Teesside Middlesbrough UK Email Lindsay Edwards - John Dixon - Jillian R Kent - David Hodgson - Vicki J Whittaker - Corresponding author Published 10 January 2008 Received 27 March 2007 Journal of Orthopaedic Surgery and Research 2008 3 2 doi I749-799X-3-2 Accepted 10 January 2008 This article is available from http content 3 1 2 2008 Edwards et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background It has been proposed that high-heeled shoes may contribute to the development and progression of knee pain. However surprisingly little research has been carried out on how shoe heel height affects muscle activity around the knee joint. The purpose of this study was to investigate the effect of differing heel height on the electromyographic EMG activity in vastus medialis VM and vastus lateralis VL during a sit to stand activity. This was an exploratory study to inform future research. Methods A repeated measures design was used. Twenty five healthy females carried out a standardised sit to stand activity under 4 conditions barefoot and with heel wedges of 1 3 and 5 cm in height. EMG activity was recorded from VM and VL during the activity. Data .