Characteristic Parameters of Surface Electromyography Signals of Cervical Muscles

• Published in: Applied Mechanics and Materials Vol. 249-250; pp. 1308 - 1312
• Main Authors: Wang, Hong, Fu, Rong Rong, Zhang, Ning Ning, Wang, Lin
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 13.12.2012
• Subjects: Cervical Spondylosis; Surface Electromyography (SEMG); Medium Frequence (MF); Integrated Electromyography (IEMG)
• ISBN: 3037855576; 9783037855577
• ISSN: 1660-9336; 1662-7482; 1662-7482
• DOI: 10.4028/www.scientific.net/AMM.249-250.1308

Surface electromyography (SEMG) signals of cervical muscles are investigated by time-frequency analysis and biomechanics analysis. Medium frequency (MF) and integrated electromyography (IEMG) are extracted and analyzed from SEMG signals of subjects’ upper trapezius. The Experimental results show that the value of MF decreases and the value of IEMG increases with the increase of fatigue of the vertical muscles. Also, the values of IEMG at different testing points of same cervical muscle are compared. The value of IEMG with higher resistant moment is higher than that with lower resistant moment. That means the muscle with high resistance moment is easier to be fatigue. This investigation is important for people, especially those who work/read with bowing head or before computer for a long time, to prevent cervical spondylosis.