Fujiwara K, Kunita K, Watanabe H
Department of Human Movement and Health, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.
Int J Sports Med. 2006 Oct;27(10):792-7. doi: 10.1055/s-2005-872959. Epub 2006 Feb 2.
We investigated sports exercise effect on shortening of saccadic reaction time associated with neck extensor muscle activity. Saccadic reaction time was measured in neck rest position, 20 degrees neck flexion, and 30 % muscle contraction of the shoulder girdle elevators for two groups. These groups were an untrained group that has never belonged to any sports club (UT group) and a group that has belonged to high-speed ball sports clubs (HS group). In the neck flexion and 30 % muscle contraction conditions, there was a significant shortening of the reaction time for the HS group. For the UT group, no significant shortening was found in those conditions, and the reaction time in the 30 % contraction was rather significantly longer than that in the rest position. Sports experience pursuing a high-speed ball will be effective in the shortening of the saccadic reaction time associated with the activity of neck extensors.
我们研究了体育锻炼对与颈部伸肌活动相关的扫视反应时间缩短的影响。对两组受试者在颈部休息位、颈部屈曲20度以及肩胛带提升肌30%肌肉收缩状态下测量扫视反应时间。这两组分别是从未加入过任何体育俱乐部的未训练组（UT组）和加入过高速球类体育俱乐部的组（HS组）。在颈部屈曲和30%肌肉收缩的条件下，HS组的反应时间显著缩短。对于UT组，在这些条件下未发现显著缩短，且在30%收缩时的反应时间比休息位时显著更长。从事高速球类运动的体育经历将有助于缩短与颈部伸肌活动相关的扫视反应时间。
