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Rehabilitation Research and Practice
Volume 2016 (2016), Article ID 4796875, 9 pages
Research Article

The Activity of Surface Electromyographic Signal of Selected Muscles during Classic Rehabilitation Exercise

1College of Electronic and Information Engineering, Hebei University, Baoding, Hebei 071000, China
2Healthy Rehabilitation Section, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, China

Received 31 December 2015; Revised 4 March 2016; Accepted 31 March 2016

Academic Editor: Francesco Giallauria

Copyright © 2016 Jinzhuang Xiao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objectives. Prone bridge, unilateral bridge, supine bridge, and bird-dog are classic rehabilitation exercises, which have been advocated as effective ways to improve core stability among healthy individuals and patients with low back pain. The aim of this study was to investigate the activity of seven selected muscles during rehabilitation exercises through the signal of surface electromyographic. Approaches. We measured the surface electromyographic signals of four lower limb muscles, two abdominal muscles, and one back muscle during rehabilitation exercises of 30 healthy students and then analyzed its activity level using the median frequency method. Results. Different levels of muscle activity during the four rehabilitation exercises were observed. The prone bridge and unilateral bridge caused the greatest muscle fatigue; however, the supine bridge generated the lowest muscle activity. There was no significant difference () between left and right body side muscles in the median frequency slope during the four rehabilitation exercises of seven muscles. Conclusions. The prone bridge can affect the low back and lower limb muscles of most people. The unilateral bridge was found to stimulate muscles much more active than the supine bridge. The bird-dog does not cause much fatigue to muscles but can make most selected muscles active.