The study on the characteristics of active force of neck muscles under rapid braking conditions.
10.7507/1001-5515.202301020
- Author:
Xiaoxia YUAN
1
;
Fan LI
2
;
Kang LEI
2
;
Qiuhong LIU
1
Author Information
1. PLA Naval Medical Center, Naval Medical University, Shanghai 200433, P. R. China.
2. State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha 410082, P. R. China.
- Publication Type:Journal Article
- Keywords:
Active contraction force;
Electromyography signals;
Neck injury;
Neck muscles;
Pilot
- MeSH:
Neck Muscles;
Neck;
Electromyography;
Head
- From:
Journal of Biomedical Engineering
2023;40(4):676-682
- CountryChina
- Language:Chinese
-
Abstract:
This paper studies the active force characteristics of the neck muscles under the condition of rapid braking, which can provide theoretical support for reducing the neck injury of pilots when carrier-based aircraft blocks the landing. We carried out static loading and real vehicle braking experiments under rapid braking conditions, collected the active contraction force and electromyography (EMG) signals of neck muscles, and analyzed the response characteristics of neck muscle active force response. The results showed that the head and neck forward tilt time was delayed and the amplitude decreased during neck muscle pre-tightening. The duration of the neck in the extreme position decreased, and the recovery towards the seat direction was faster. The EMG signals of trapezius muscle was higher than sternocleidomastoid muscle. This suggests that pilots can reduce neck injury by pre-tightening the neck muscles during actual braking flight. In addition, we can consider the design of relevant fittings for pre-tightening the neck muscles.
