Moving approximate entropy applied to surface electromyographic signals

被引:26
作者
Ahmad, Siti A. [1 ]
Chappell, Paul H. [1 ]
机构
[1] Univ Southampton, Sch Elect & Comp Sci, Southampton SO17 1BJ, Hants, England
关键词
Surface EMG; Flexor and extensor muscles; Moving approximate entropy;
D O I
10.1016/j.bspc.2007.10.003
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
The objective of this Study was to investigate the surface electromyographic signals using moving approximate entropy from 20 healthy participants' wrist muscles (flexor carpi ulnaris and flexor carpi radialis). The participants were required to voluntary performed wrist flexion/extension, co-contraction and isometric contraction. A moving data window of 200 values was applied to the data and a moving approximate entropy series was obtained from the analysis. The results demonstrate that there are distinct drops of the approximate entropy Values at the start and end of a contraction. and high (less regularity) approximate entropy in the middle. Mean values of approximate entropy of 0.54 and 0.55 were found for the start of a contraction compared to 0.79 and 0.77 during the middle. for the flexor and extensor, respectively. At the end, there are values of 0.46 and 0.5. respectively. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:88 / 93
页数:6
相关论文
共 28 条
  • [1] ANDRADE AO, 2003, IEEE C P ENG MED BIO, V3, P2598
  • [2] ACOUSTIC AND SURFACE EMG DIAGNOSIS OF PEDIATRIC MUSCLE DISEASE
    BARRY, DT
    GORDON, KE
    HINTON, GG
    [J]. MUSCLE & NERVE, 1990, 13 (04) : 286 - 290
  • [3] EMG frequency content changes with increasing force and during fatigue in the quadriceps femoris muscle of men and women
    Bilodeau, M
    Schindler-Ivens, S
    Williams, DM
    Chandran, R
    Sharma, SS
    [J]. JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY, 2003, 13 (01) : 83 - 92
  • [4] BONATA P, 2001, IEEE T REHABIL ENG, V10, P38
  • [5] Approximate entropy as an electroencephalographic measure of anesthetic drug effect during desflurane anesthesia
    Bruhn, J
    Röpcke, H
    Hoeft, A
    [J]. ANESTHESIOLOGY, 2000, 92 (03) : 715 - 726
  • [6] A robust, real-time control scheme for multifunction myoelectric control
    Englehart, K
    Hudgins, B
    [J]. IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2003, 50 (07) : 848 - 854
  • [7] A wavelet-based continuous classification scheme for multifunction myoelectric control
    Englehart, K
    Hudgins, B
    Parker, PA
    [J]. IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2001, 48 (03) : 302 - 311
  • [8] ENGLEHART K, 1995, IEEE P ENG MED BIOL, V2, P819
  • [9] ENGLEHART K, 1994, IEEE P ENG MED BIOL, V2, P1093
  • [10] ENGLEHART K, 1999, IEEE P ENG MED BIOL, V1, P317