摘要
目的开展头部载荷对头颈活动能力影响的研究,为持续性正加速度作用下飞行员转头适宜性和飞行员头戴装备的使用提供依据。方法以大口径视野计为测量平台,12名受试者分为甲组[6名,平均年龄(18.8±1.2)岁]和乙组[6名,平均年龄(40.8±5.9)岁]。受试者佩戴某型头盔夜视系统(包括保护头盔、夜视镜及配套的供氧面罩,重量1.955 kg),按其重量成倍地增加配重。测量不同载荷时受试者头颈旋转、俯仰的角度和角速度,记录受试者的主诉。结果甲组头部载荷16 kg时达到载荷终点(相当于3.0 G),乙组头部载荷12 kg时达到载荷终点(相当于2.4 G)。随着头部载荷增加,2组受试者头颈水平旋转的角度和角速度均减小;俯仰时总体表现为俯角增大、仰角减小,但俯仰角速度均呈减小趋势。不同头部载荷下,受试者头颈从左向右和从右向左水平转动时,甲组(F=5.912、3.681,P=0.001、0.010)和乙组(F=4.422、5.571,P=0.015、0.006)的头颈转动角速度差异均有统计学意义。结论本研究建立了模拟过载作用下飞行员头盔夜视系统对头颈活动能力影响的测量方法,获得了过载作用下头颈活动能力的数据,为持续性正加速度作用下飞行员转头的适宜性、飞行员头戴装备的使用提供了依据。
Objective To study the mobility of the head and neck under head–supported weight in order to provide data on the movement of the head and neck under sustained positive acceleration and on the use of head-borne equipments for pilots.Methods A large aperture visual field measurement system was used as a test platform.A helmet system that weighed 1.955 kg included pilot helmets,night vision goggles and oxygen masks.12 volunteers were divided into 2 groups:group A[6 males with an average age of(18.8±1.2)years old]and group B[6 males with an average age of(40.8±5.9)years old].The volunteers wore the helmet system.The counterweight was added to the helmets as double weight of the system.The angle and angle velocity of head and neck rotation were recorded under each weight.After each test,the complaints from the subjects were recorded.Results The end load was 16 kg in group A and 12 kg in group B,corresponding to 3.0 G and 2.4 G respectively.With the increase of the load,the level rotation angles and angle velocities in the 2 groups decreased,the uppitch angles decreased and the down angles increased,and the pitch angle velocities decreased.The difference in head and neck rotation angle velocities between group A(F=5.912,3.681,P=0.001,0.010)and group B(F=4.422,5.571,P=0.015,0.006)was statistically significant under different loads when the volunteers'heads and necks rotated from the left to the right or vice versa.Conclusion Methods of measurement of the mobility of heads and necks under head–supported weight have been established.The results are expected to provide data on the movement of heads and necks under sustained positive acceleration and with pilot head-borne equipments.
作者
刘何庆
张立辉
赵彦鹏
卫晓阳
李宝辉
金朝
王若永
吴明磊
LIU Heqing;ZHANG Lihui;ZHAO Yanpeng;WEI Xiaoyang;LI Baohui;JIN Zhao;WANG Ruoyong;WU Minglei(Department of Aviation Lifesaving Research,Air Force Medical Center,Beijing 100142,China;不详)
出处
《空军航空医学》
2023年第2期102-107,共6页
AVIATION MEDICINE OF AIR FORCE
关键词
头盔
夜视镜
加速度
头部载荷
头颈活动度
飞行员
helmet
night vision goggle
acceleration
head–supported weight
mobility of the head and neck
pilot
