Citation

Tang F, Yi C, Li K, Zuo H, Yin L, Li W. China Saf. Sci. J. 2021; 31(9): 191-196.

Copyright

(Copyright © 2021, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2021.09.026

PMID

unavailable

Abstract

In order to investigate effect of walking speed and load on muscular fatigue for dynamic tension work, and models for predicting muscular fatigue was constructed, a simulated dynamic truck pulling work was designed and 10 male college students were recruited as participants. Then, MVC before and after the test and MET were measured, and RPE of multiple body parts were recorded, effects of speed and load on variation of tension, MET and RPE was investigated. Also, predict MET model was constructed based on data. The results show that walking speed affects MET, tension attenuation value (ΔF), DFD and RPE for multiple parts of body significantly, while load effect MET remarkably. Prediction model is reasonable to describe relationships between MET and load intensity and walking speed, and had a lower deviation between prediction values and actual values when compared with other MET prediction models. It was more suitable for prediction and assessment of muscular fatigue in dynamic truck pulling task. © 2021 China Safety Science Journal

Language: zh