The influence of habitual breaks in sedentary time on cardiovagal baroreflex function
The influence of habitual breaks in sedentary time on cardiovagal baroreflex function
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DOI：
10.1139/apnm-2021-0246
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发表时间：
2021-09-01
影响因子：
3.4
通讯作者：
Kimmerly, Derek S.
中科院分区：
文献类型：
--
作者：
O'Brien, Myles W.;Al-Hinnawi, Amera;Kimmerly, Derek S.
久坐时间最近被列入24小时活动指南。然而，习惯性久坐模式对自主心血管调节的影响尚不清楚。我们检验了这样的假设：久坐时间越长，久坐休息时间越少，心血管压力反射敏感性越低。更频繁的久坐休息，而不是总久坐时间，与迷走神经介导的血压控制独立且正相关。对于心血管健康来说，打破久坐时间可能比总久坐时间更重要。新奇：久坐时间的休息是心血管压力反射敏感性的独立预测指标，更频繁的休息与更好的迷走神经介导的血压调节有关。
Sedentary time has recently been included in the 24-h activity guidelines. However, the impact of habitual sedentary patterns on autonomic cardiovascular regulation are unclear. We tested the hypothesis that more sedentary time and fewer sedentary breaks were associated with lower cardiovagal baroreflex sensitivity. More frequent sedentary breaks, but not total sedentary time, was independently and positively associated with vagally mediated blood pressure control. Breaking up sedentary time could be more important than total sedentary time for cardiovascular health.Novelty:Breaks in sedentary time is an independent predictor of cardiovagal baroreflex sensitivity, with more frequent breaks associated with better vagallymediated blood pressure regulation.