The Effect of Overweight/Obesity on Cardiovascular Responses to Acute Psychological Stress in Men Aged 50-70 Years

被引:14
|
作者
Torres, Susan J. [1 ]
Turner, Anne I. [1 ]
Jayasinghe, Sisitha U. [1 ]
Reynolds, John [2 ]
Nowson, Caryl A. [1 ]
机构
[1] Deakin Univ, Sch Exercise & Nutr Sci, Ctr Phys Act & Nutr Res, Burwood, Vic 3125, Australia
[2] Deakin Univ, Fac Hlth, Biostat Unit, Burwood, Vic 3125, Australia
关键词
Stress; Blood pressure; Obesity; Adults; BLOOD-PRESSURE VARIABILITY; CENTRAL ADIPOSITY; RISK-FACTOR; BODY-MASS; OBESITY; RECOVERY; REACTIVITY; MORTALITY; FINOMETER;
D O I
10.1159/000369854
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: To determine the effect of adiposity in males aged 50-70 years on cardiovascular responses to acute psychological stress. Methods: Lean (BMI 20-25 kg/m(2)) (n = 21) and overweight/obese (BMI 27-35 kg/m(2)) (n = 21) men aged 50-70 years were subjected to psychological stress. Systolic blood pressure, diastolic blood pressure, heart rate, total peripheral resistance, and cardiac output were measured by a Finometer during resting (60 min), stress (30 min), and recovery (90 min). Results: The lean group had a significantly higher SBP stress reactivity when compared to the overweight/obese group (51.5 +/- 3.7% vs. 41.0 +/- 2.9% (mean +/- SEM); p < 0.05). A significant effect of time was observed for systolic blood pressure, diastolic blood pressure, heart rate, total peripheral resistance, and cardiac output (p < 0.0001 for all). There were significant time x body type interactions for systolic blood pressure, diastolic blood pressure, heart rate, total peripheral resistance, and cardiac output (p < 0.05 for all). Total peripheral resistance during recovery was higher in the lean compared to the over group (p < 0.05). In the lean group, systolic and diastolic blood pressure variability remained elevated after stress (p < 0.05) but returned to resting levels in the overweight/obese group (p > 0.05). Conclusion: Moderate adiposity in men was associated with reduced systolic blood pressure % reactivity, total peripheral resistance, and blood pressure variability after psychological stress. Overweight/obese men appear to be at no greater risk of unfavorable cardiovascular responses to stress. (C) 2014 S Karger GmbH, Freiburg
引用
收藏
页码:339 / 350
页数:12
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