Effects of two recovery methods on the leg muscle fatigue of oceanauts in a manned submersible

• Authors: Dengkai Chen , Mengya Zhu , Yu Fan , Jingluan Wang

Abstracts

EN

The cabin of the manned submersible is a narrow and sealed space. The long-time work of oceanauts is easy to cause muscle fatigue and stiffness, which reduces efficiency. This paper explored the relative more effective way to relieve leg muscle fatigue of the oceanauts in the manned submersible.Material and MethodsTwenty healthy young people with an average age of 24 years were selected as the participants, while the usual natural relaxation and the stretching method proposed by the surveys were selected as the relieve method for muscle fatigue. This study compared the effects of the 2 recovery ways using the electromyography data from the quadriceps femoris and biceps femoris, and the subjective scales.ResultsWith the support of data of integral electromyogram (iEMG), root-mean-square (RMS), subjective scales, authors finally found that the 2 muscles of the leg are fatigued significantly, and biceps femoris has more accumulation of fatigue. Although the 2 recovery ways have a significant relief effect on muscle fatigue, the stretching method can reduce more muscle fatigue in a short period of time, especially for biceps femoris. The stretching method is advocated for the oceanauts.ConclusionsThe findings suggested that the stretching method was optimal for relieving the muscle fatigue of the oceanauts during the operation. Med Pr. 2022;73(2):95–107

Keywords

EN

EMG; muscle fatigue; stretching; manned submersible; oceanauts; recovery methods

• Publisher: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
• Journal: Medycyna Pracy
• Year: 2022
• Volume: 73
• Issue: 2
• Pages: 95-107

Dates

published

2022

Contributors

author

Dengkai Chen

• Northwestern Polytechnical University, Xi’an, China (Shaanxi Engineering Laboratory for Industrial Design)
• Key Laboratory of the Ministry of Industry and Information Technology, Xi’an, China

author

Mengya Zhu

• Northwestern Polytechnical University, Xi’an, China (Shaanxi Engineering Laboratory for Industrial Design)
• Key Laboratory of the Ministry of Industry and Information Technology, Xi’an, China

author

Yu Fan

• Northwestern Polytechnical University, Xi’an, China (Shaanxi Engineering Laboratory for Industrial Design)
• Key Laboratory of the Ministry of Industry and Information Technology, Xi’an, China

author

Jingluan Wang

• Northwestern Polytechnical University, Xi’an, China (Shaanxi Engineering Laboratory for Industrial Design)
• Key Laboratory of the Ministry of Industry and Information Technology, Xi’an, China

Identifiers

DOI

10.13075/mp.5893.01211

Biblioteka Nauki

2081127