新西兰黑在持续中等强度运动后增加了运动后的低血压
Yusen Shan1, Matthew David Cook2
1School of Sport Science, Beijing Sport University, Beijing, BJ,People's Republic of China.
概括
新西兰黑 (NZBC) 提取物增强了运动后的低血压,增加了运动后的缩血压降低. 这项研究研究了其在体力活动后对心血管反应的长期影响.
科学领域:
- 运动生理学 运动生理学
- 营养生物化学 营养生物化学
- 心血管健康 心血管健康
背景情况:
- 众所周知,新西兰黑 (NZBC) 提取物会影响静止心血管反应.
- NZBC对运动后心血管恢复的影响,特别是血压和心率波动的影响,仍未得到研究.
研究的目的:
- 为了确定NZBC补充剂在运动后对血压和心率变化的长期影响.
- 在健康成年人中,比较NZBC和安慰剂 (PLA) 之间的运动后心血管反应.
主要方法:
- 一项双盲,安慰剂控制,随机交叉研究,涉及15名参与者.
- 参与者服用了NZBC或PLA7天,然后在50%的最大氧气摄入率下进行1小时的跑步机炼和2小时的卧底休息.
- 进行了血压和心率变化的持续监测.
主要成果:
- 摄入NZBC增加了运动期间的平均脂肪氧化 (p = .005) 和增强高频相对功率 (p = .037).
- 与PLA (p = .033) 相比,在NZBC的2小时恢复期间观察到静脉血压下降的更大程度.
- 条件之间没有发现腹压或平均动脉压的显著差异,也没有发现心率变化.
结论:
- 七天的NZBC摄入促进了在年轻,活跃的个体中更明显的运动后低血压.
- 在中等强度运动后,NZBC可能会影响心血管恢复,特别是在静脉血压调节方面.
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