Honkanen Tuomas, Oksa Juha, Mäntysaari Matti J, Kyröläinen Heikki, Avela Janne
Aerosp Med Hum Perform. 2017 Feb 1;88(2):90-95. doi: 10.3357/AMHP.4659.2017.
The aim of the present study was to compare differences in electromyography (EMG) activation of the neck and shoulder muscles between groups of inexperienced and experienced pilots during controlled +Gz exposure in a centrifuge.
The subjects were volunteer cadets (inexperienced group) and lieutenants (experienced group) undergoing their first centrifuge training. The first group did not have any high performance aircraft (HPA) experience, while the latter one had a 1-yr experience of intense flying of HPA. During the centrifuge run, EMG activity was recorded from the left and right shoulder, neck flexor, and neck extensor muscles.
The pilots without HPA experience had significantly higher muscle activity in the neck flexor and extensor muscles during the last 5 s of the recorded period at G levels exceeding +7.4.
Muscle activity in the neck and shoulder muscles was gradually higher among the whole study group with increasing +Gz forces. Because pilots without any HPA experience had significantly higher muscle activity than their counterparts with experience of HPA, we suppose that the experience of high +Gz forces might lead to lower muscle activation in the same flight mission.Honkanen T, Oksa J, Mäntysaari MJ, Kyröläinen H, Avela J. Neck and shoulder muscle activation among experienced and inexperienced pilots in +Gz exposure. Aerosp Med Hum Perform. 2017; 88(2):90-95.
本研究的目的是比较在离心机中进行可控 +Gz 暴露时， inexperienced 和 experienced 飞行员组之间颈部和肩部肌肉的肌电图（EMG）激活差异。
受试者为接受首次离心机训练的志愿者学员（inexperienced 组）和中尉（experienced 组）。第一组没有任何高性能飞机（HPA）飞行经验，而后者有 1 年的 HPA 高强度飞行经验。在离心机运行期间，记录左右肩部、颈部屈肌和颈部伸肌的肌电活动。
在记录期的最后 5 秒，当 G 水平超过 +7.4 时，没有 HPA 经验的飞行员颈部屈肌和伸肌的肌肉活动显著更高。
随着 +Gz 力的增加，整个研究组颈部和肩部肌肉的活动逐渐增加。由于没有任何 HPA 经验的飞行员比有 HPA 经验的飞行员肌肉活动显著更高，我们推测在相同飞行任务中，高 +Gz 力的经验可能导致更低的肌肉激活。
洪卡宁 T，奥克萨 J，曼蒂萨里 MJ，基罗莱宁 H，阿韦拉 J。在 +Gz 暴露下，有经验和无经验飞行员的颈部和肩部肌肉激活情况。航空航天医学与人类表现。2017；88(2):90 - 95。
