长时间-低强度肌肉疲劳肌电检测方法研究进展

Research progress on electromyographic methods for sustained low-intensity muscle fatigue detection

长时间-低强度肌肉疲劳指作业活动中骨骼肌以低于10%最大随意等长收缩力持续收缩导致肌肉收缩功能下降的现象,是职业性颈、肩、腰、背部不适与疼痛症状高发的主要诱因之一。尽管表面肌电图是评估神经肌肉活动效率的关键生理技术,但在客观检测长时间-低强度肌肉疲劳方面,其有效性仍存在争议。因此,本文阐述长时间-低强度肌肉疲劳的神经生理机制及相关假说,并综述长时间-低强度肌肉疲劳肌电检测指标与检测方法的研究进展,对工作相关肌肉骨骼疾患的早期预防与精准检测有重要意义。

Sustained low-intensity muscle fatigue(SULMF)refers to the phenomenon that skeletal muscle continues to contract at less than 10%of maximum voluntary contraction during work activities,resulting in decreased muscle contractile function,which is one of the main causes of occupational neck,shoulder,waist and back discomfort and pain symptoms.Although surface electromyography is a key physiological technique for assessing the efficiency of neuromuscular activity,its effectiveness in objectively detecting SULMF remains controversial.Therefore,this paper describes the neurophysiological mechanism and related hypotheses of SULMF,and reviews the research progress of electromyography detection indicators and detection methods of SULMF,which is of great significance for the early prevention and accurate detection of work-related musculoskeletal disorders.