Xin Chenxi, Fu Jiahao, Zhou Zhihui, Zhou Yujiao, He Hui
Physical Education Department, Shanghai University of Finance and Economics, Shanghai, China.
China Institute of Sports and Health, Beijing Sport University, Beijing, China.
Front Physiol. 2024 Jul 12;15:1411277. doi: 10.3389/fphys.2024.1411277. eCollection 2024.
To investigate the effects of 8-week aquatic and land high intensity interval training (HIIT) on hemodynamics and vascular function in middle-aged men. Thirty middle-aged men with low physical activity were selected and divided into 15 men (52.43 ± 4.11) in aquatic group and 15 men (52.74 ± 5.62) in land group by random number table. They performed HIIT exercise in aquatic and land 3 times a week for 8 weeks. Pre-test, inter-test and post-test respectively measure hemodynamics and blood vessel function. (1) Body composition: After 8 weeks of exercise, weight, body mass index (BMI) and body fat rate (BF) were lower than before exercise (aquatic group: < 0.01, land group: < 0.05). The improvement of BF in the aquatic group was better than that in the land group ( < 0.05); (2) Cardiac function: After 8 weeks of exercise, stroke volume (SV), left ventricular end-diastolic volume (EDV), cardiac output (CO), and left ventricular fractional shortening (FS), were higher than before exercise (aquatic group: < 0.01, land group: < 0.05), heart rate (HR) and left ventricular end-systolic volume (ESV) were lower than before exercise (aquatic group: < 0.01, land group: < 0.05). The improvement of SV, HR, EDV, ESV, CO and FS in the aquatic group was better than that in the land group ( < 0.05); (3) Hemodynamics: After 8 weeks of exercise, systolic blood pressure (SBP), diastolic blood pressure (DBP) were lower than before exercise (aquatic group: < 0.01, land group: < 0.05), wall shear stress (WSS) and peak systolic velocity (PSV) were higher than before exercise (aquatic group: < 0.01, land group: < 0.05). The improvement of SBP, WSS and PSV in the aquatic group was better than that in the land group ( < 0.05); (4) Vascular function: basal diameter and brachial artery flow-mediated dilatation (FMD) level in aquatic group and land group was higher than before exercise, pulse wave velocity (PWV) level was lower than before exercise (aquatic and land group: < 0.05). The improvement of FMD in the aquatic group was better than that in the land group. The body composition, hemodynamics and vascular function of middle-aged men were improved by 8-week aquatic and land HIIT. Aquatic HIIT has better effect on body fat rate, hemodynamics and vascular endothelial function in middle-aged men due to the effect of aquatic pressure and temperature.
探讨为期8周的水上和陆地高强度间歇训练（HIIT）对中年男性血液动力学和血管功能的影响。选取30名身体活动水平较低的中年男性，通过随机数字表法分为水上组15名（52.43±4.11岁）和陆地组15名（52.74±5.62岁）。他们每周在水上和陆地进行3次HIIT运动，共8周。分别在预测试、测试中期和后测试时测量血液动力学和血管功能。（1）身体成分：运动8周后，体重、身体质量指数（BMI）和体脂率（BF）均低于运动前（水上组：<0.01，陆地组：<0.05）。水上组BF的改善情况优于陆地组（<0.05）；（2）心脏功能：运动8周后，每搏输出量（SV）、左心室舒张末期容积（EDV）、心输出量（CO）和左心室短轴缩短率（FS）均高于运动前（水上组：<0.01，陆地组：<0.05），心率（HR）和左心室收缩末期容积（ESV）低于运动前（水上组：<0.01，陆地组：<0.05）。水上组SV、HR、EDV、ESV、CO和FS的改善情况优于陆地组（<0.05）；（3）血液动力学：运动8周后，收缩压（SBP）、舒张压（DBP）低于运动前（水上组：<0.01，陆地组：<0.05），壁面切应力（WSS）和收缩期峰值流速（PSV）高于运动前（水上组：<0.0
