Lakie M, Villagra F, Bowman I, Wilby R
School of Sport and Exercise Sciences, University of Birmingham, Edgbaston, UK.
J Sports Sci. 1995 Aug;13(4):313-20. doi: 10.1080/02640419508732245.
The changes in postural tremor of the hand and the subsequent effect on shooting performance produced by moderate cooling and heating of the forearm were studied in six subjects. Cooling produced a large decrease in tremor size of the ipsilateral hand, whereas warming the limb produced an increase in tremor size. Cooling or warming the forearm did not change the peak frequency of tremor significantly, which was quite stable for each subject. The improvement in shooting performance after cooling the forearm, as measured by grouping pattern of the shots, reached statistical significance and warming caused a significant worsening. This measure of performance was shown to correlate (r = 0.776) inversely with tremor size. The causes and implications of these changes are discussed. It is suggested that local cooling may be useful for people who wish temporarily to reduce tremor in order to improve dexterity for shooting and for other purposes.
对6名受试者进行了研究，观察前臂适度冷却和加热对手部姿势性震颤的影响以及对射击表现的后续作用。冷却使同侧手部的震颤幅度大幅降低，而肢体升温则使震颤幅度增加。前臂冷却或加热并未显著改变震颤的峰值频率，每个受试者的峰值频率都相当稳定。以前臂冷却后射击表现的改善情况（通过射击分组模式衡量）具有统计学意义，而升温则导致显著恶化。这种表现衡量指标与震颤幅度呈负相关（r = 0.776）。讨论了这些变化的原因及影响。建议局部冷却对于那些希望暂时减少震颤以提高射击及其他目的的灵活性的人可能有用。
