Inami Takayuki, Baba Reizo, Nakagaki Akemi, Shimizu Takuya
a Centre of Exercise and Sports Science Research, School of Exercise and Health Sciences, Edith Cowan University , Australia.
Res Sports Med. 2015;23(2):167-78. doi: 10.1080/15438627.2015.1005296. Epub 2015 Apr 1.
This study aimed to investigate the acute effect of static stretching (SS) on peripheral vascular tonus and to clarify the effect of SS on systemic circulation. Twenty healthy young male volunteers performed a 1-min SS motion of the right triceps surae muscle, repeated five times. The peripheral vascular tonus (|d/a| ratio) was obtained using second derivatives of the photoplethysmogram readings before, during, and after SS. Heart rate and blood pressure (BP) were also measured. The |d/a| ratio and BP were transiently, but significantly, elevated during SS and returned to baseline immediately after SS. Furthermore, we observed a significant correlation between the amount of change in the |d/a| ratio and the ankle range of motion during SS (r = 0.793 to 0.832, P = 0.01). These responses may be caused by mechanical stress during SS.
本研究旨在探讨静态拉伸（SS）对周围血管张力的急性影响，并阐明SS对全身循环的作用。20名健康年轻男性志愿者对右侧腓肠肌进行了1分钟的SS动作，重复5次。在SS前、期间和之后，使用光电容积脉搏波读数的二阶导数获得周围血管张力（|d/a|比值）。还测量了心率和血压（BP）。在SS期间，|d/a|比值和BP短暂但显著升高，并在SS后立即恢复到基线水平。此外，我们观察到在SS期间|d/a|比值的变化量与踝关节活动范围之间存在显著相关性（r = 0.793至0.832，P = 0.01）。这些反应可能是由SS期间的机械应力引起的。
