累积与持续运动对不同性别久坐青年运动后低血压的影响

(1.华南师范大学 体育科学学院，广东 广州  510006；2.沈阳国际旅行卫生保健中心，辽宁 沈阳  110179；

3.广东海洋大学 体育与休闲学院，广东 湛江  524088)

摘      要：为观察急性累积运动和持续运动后血压动态变化并探讨其性别差异，招募24名久坐青年(男女各半)随机参与3次实验：久坐对照(CON)、持续运动(CE)、累积运动(AE)。采用64%VO_2max强度跑台运动，持续运动为运动1次，持续60 min；累积运动为运动6次，每次10 min，各次间隔1 h。测量运动前与运动后4 h内动态血压，计算血压二次差值(ΔΔSBP和ΔΔDBP)及其曲线下面积(AUC)。结果显示：(1)久坐男性运动后ΔΔSBP和ΔΔDBP均<0，且CE的ΔΔSBP_AUC和ΔΔDBP_AUC较AE更大；(2)久坐女性在CE和AE运动后ΔΔSBP均<0；但ΔΔDBP仅在AE运动后<0。AE的ΔΔSBP_AUC和ΔΔDBP_AUC较CE更大。研究认为：持续运动和累积运动均可诱导久坐青年出现运动后低血压。对于久坐男性，持续运动的运动后低血压效应更大；对于久坐女性，累积运动的运动后低血压效应更大。

关  键  词：运动医学；运动后低血压；累积运动；久坐；性别差异

中图分类号：G804.5    文献标志码：A    文章编号：1006-7116(2023)06-0141-08

(1.School of Physical Education，South China Normal University，Guangzhou 510006，China；

2.Shenyang International Travel Health Care Center，Shenyang 110179，China；

3.School of Sports and Leisure，Guangdong Ocean University，Zhanjiang 524088，China)

Abstract: This study aims to observe and compare the effects of acute accumulative exercise and continuous exercise on post-exercise blood pressure in sedentary youth with different genders, and 12 male and 12 female young sedentary adults were enrolled, who underwent three separate trials: six 10-min running bouts throughout the afternoon (AE), a single 60-min running (CE), and prolonged sitting (CON) in random order with 3~5 day intervals. Participants ran on a treadmill at 64% VO2max, and ambulatory blood pressure was measured before and 4 h after exercise, and the corrected value of blood pressure (ΔΔSBP/ΔΔDBP) and the area under the curve (AUC) were calculated. The results show that: (1) for sedentary males, ΔΔSBP and ΔΔDBP were both < 0 after exercise, but ΔΔSBPAUC and ΔΔDBPAUC were greater in CE compared to AE. (2) For sedentary females, ΔΔSBP was < 0 after exercise in both CE and AE; only the AE group had ΔΔDBP < 0 after exercise. ΔΔSBPAUC and ΔΔDBPAUC were greater in AE. The conclusion reveals that: both AE and CE could all induce post-exercise hypotension in the sedentary youth. For the sedentary men, the post-exercise hypotensive effect was greater with CE, whereas for sedentary women, the post-exercise hypotensive effect was greater with AE.