Gender Effects in Surface Electromyographic Activity of the Biceps Brachii Muscle during Prolonged Isometric Contraction

被引:5
作者
Ahamed, Nizam Uddin [1 ]
bin Md Yusof, Zulkifli [1 ]
Alqahtani, Mahdi [2 ]
Altwijri, Omar [2 ]
Rahman, S. A. M. Matiur [3 ]
Sundaraj, Kenneth [4 ]
机构
[1] Univ Malaysia Pahang, Fac Mfg Engn, Dept Mechatron Engn, Pekan 26600, Malaysia
[2] King Saud Univ, Coll Appl Med Sci, Biomed Technol Dept, Riyadh 11451, Saudi Arabia
[3] Najran Univ, Coll Comp Sci & Informat Syst, Najran, Saudi Arabia
[4] Univ Teknikal Malaysia Melaka UTeM, Durian Tunggal 76100, Melaka, Malaysia
来源
COMPLEX ADAPTIVE SYSTEMS, 2015 | 2015年 / 61卷
关键词
Electromyography; EMG; Biceps Brachii; Gender; RMS; Contraction; EMG ACTIVITY; FEMALE;
D O I
10.1016/j.procs.2015.09.185
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The muscle activity, electromyographic (EMG) signal steadiness and relationships between the EMG signal and endurance time among males and females have long been investigated and continue to be a subject of controversy. The aim of this study was to explore the electromyographic effects on the biceps brachii (BB) muscle of male and female subjects during prolonged isometric contraction (for 90 s). Twenty right-handed (10 male and 10 female) subjects participated in this study. The EMG analysis was accomplished in the time domain by calculating the amplitude content of the signals as the root mean square (EMG-RMS). The statistical analysis included linear regression to examine the relationships between the EMG amplitude (% MVC) and the endurance time, repeated-measures ANOVA to assess differences among the variables, and calculation of the coefficient of variation (CoV) to assess the steadiness of the signal. The results revealed that the linear slope coefficient of the EMG as a function of time (r(2) = 0.56, p < 0.05) obtained for male subjects during contraction was significantly greater than that obtained for females (r(2) = 0.11, p > 0.05). Additionally, the EMG signal activity generated by the male BB muscle (10.25%) exhibits less variability than that generated by the female BB muscle (12.11%). The experimental results indicate the suitability of developing an EMG prosthetic hand controller and the use of EMG analysis in the fields of neuromuscular system research, rehabilitation engineering and movement biomechanics, which may help separate male and female subjects. (C) 2015 The Authors. Published by Elsevier B.V.
引用
收藏
页码:448 / 453
页数:6
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