SPECTRAL-ANALYSIS OF ERECTOR SPINAE EMG DURING INTERMITTENT ISOMETRIC FATIGUING EXERCISE

被引：28

作者：

VANDIEEN, JH ^{[1
]}

TOUSSAINT, HM ^{[1
]}

THISSEN, C ^{[1
]}

VANDEVEN, A ^{[1
]}

机构：

[1] FREE UNIV AMSTERDAM,FAC HUMAN MOVEMENT SCI,1007 MC AMSTERDAM,NETHERLANDS

来源：

ERGONOMICS | 1993年 / 36卷 / 04期

关键词：

LOCALIZED MUSCULAR FATIGUE; EMG; SPECTRAL ANALYSIS; MEDIAN FREQUENCY; ERECTOR SPINAE MUSCLE;

D O I：

10.1080/00140139308967898

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The applicability of EMG spectral analysis in the study of muscular fatigue of the erector spinae muscle was investigated. At three locations (L1, L2, L5) of the erector spinae muscle, representing different functional parts, EMG was sampled during fatiguing intermittent isometric extension of the trunk. The multifidus muscle (L5) appeared to show the most consistent changes of the EMG power spectrum as a consequence of fatigue. Whether the effects of the increase in muscle temperature on the power spectrum could be eliminated by low-pass filtering the data (60 Hz and 40 Hz) was also investigated. It was expected that this would make it possible to detect better the effects of fatigue on the firing characteristics of the motorunits by the inherent changes in the power spectrum. Low-pass filtering did not cause a more significant trend of the median frequency of the power spectrum. Future research will have to explore which parts of the power spectrum are affected by an increase of the muscle temperature.

引用

页码：407 / 414

页数：8