Helin P, Sihvonen T, Hänninen O
Br J Sports Med. 1987 Mar;21(1):33-6. doi: 10.1136/bjsm.21.1.33.
The purpose of this study was to verify the timing of triggering in relation to the cardiac cycle in shooting. The test subjects were six Finnish rifle and pistol champions as well as three beginners at shooting. The electrical activity of the trigger finger muscle (m. flexor digitorum superficialis; surface electrodes) and the heart cycle were fed into a two-channel x-t recorder. The movements of the gun were recorded using a laser technique and, at the same time, cardiac cycles were also monitored. Results showed that the champion shooters triggered during diastole whereas the beginners triggered both during diastole and systole. The results of those beginners triggering during diastole were better than those triggering during systole.
本研究的目的是验证射击时扳机触发与心动周期的时间关系。测试对象包括六名芬兰步枪和手枪冠军以及三名射击初学者。扳机指肌肉（指浅屈肌；表面电极）的电活动和心动周期被输入到双通道x-t记录仪中。使用激光技术记录枪支的运动，同时也监测心动周期。结果表明，冠军射手在舒张期触发扳机，而初学者在舒张期和收缩期均有触发。那些在舒张期触发扳机的初学者的成绩比在收缩期触发扳机的初学者更好。
