The influence of habitual breaks in sedentary time on cardiovagal baroreflex function

被引：15
|
作者：
O'Brien, Myles W. [1 ]
Al-Hinnawi, Amera [1 ]
Wu, Yanlin [1 ]
Petterson, Jennifer L. [1 ]
Shivgulam, Madeline E. [1 ]
Johns, Jarrett A. [1 ]
Frayne, Ryan J. [1 ]
Kimmerly, Derek S. [1 ]
机构：
[1] Dalhousie Univ, Fac Hlth, Sch Hlth & Human Performance, Div Kinesiol, Halifax, NS, Canada
来源：
APPLIED PHYSIOLOGY NUTRITION AND METABOLISM | 2021年 / 46卷 / 09期
关键词：
objectively measured physical activity; sedentary breaks; prolonged sitting; blood pressure regulation; autonomic cardiovascular control; arterial baroreflex; CARDIAC BAROREFLEX; PHYSICAL-ACTIVITY; SENSITIVITY;
D O I：
10.1139/apnm-2021-0246
中图分类号：
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号：
100403 ;
摘要：
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.
引用
收藏
页码：1143 / 1146
页数：4
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