期刊
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
卷 10, 期 5, 页码 301-312出版社
ELSEVIER SCI LTD
DOI: 10.1016/S1050-6411(00)00022-5
关键词
electromyography; dose; exposure; fatigue; musculoskeletal disorders; physical load
Surface electromyography (SEMG) is an important tool for work load assessment in ergonomics. Several different approaches using amplitude as well as frequency parameters give fruitful information depending on question at issue in the laboratory as well as in field studies. One basic factor determining the choice of analysis method is whether the SEMG is interpreted as an indicator of forces/torques or pure muscular activation. Two methods for occupational SEMG data reduction representing two different approaches to SEMG applications in ergonomics, Exposure Variation Analysis (EVA), and Joint Analysis of EMG Spectrum and Amplitude (JASA), applied on the same SEMG recording from three muscles during urology surgeon work, have been compared. The EVA method categorised the three muscle recordings as too static with no EMG gaps while the JASA method identifies fatigue in two of the three recordings. The practical relevance of these findings is discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.
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