Depressive Symptoms Are Positively Associated with Time Spent Sedentary in Healthy Young US Adults

Keith Brazendale, C. Drenowatz, R. Falck, A. Randel, Jared D. Hoffmeyer, G. Hand, S. Burgess, S. Blair
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引用次数: 3

Abstract

Introduction: Sedentary time and depressive symptoms are positively associated in elderly adults and adults with chronic disease; however, little is known about this relationship in generally healthy young adults. The purpose of this study was to investigate the association between objectively measured sedentary time and depressive symptoms in a large sample of healthy young adults. Methods: Time spent sedentary and in moderate-to-vigorous physical activity (MVPA) was measured in 430 participants (49% men; 28 ± 4 years; 25.5 ± 3.3 kg/m2) using the SenseWear Mini Armband over a 10-day period. The Profile of Mood States depression scale was administered to assess depressive symptoms. Independent samples t tests investigated differences in MVPA, time spent sedentary, and Profile of Mood States scores between males and females. Linear regression analyses, adjusting for MVPA, sex, and body mass index, were employed to examine associations between sedentary time and depressive symptoms. Results: Mean time spent sedentary while awake was 681 ± 94 min/d. Holding MVPA constant, depressive symptoms were positively associated with sedentary time (&bgr; = 1.80; P < 0.01; R2 = 0.54). This association was statistically significant in males (&bgr; = 2.06; P < 0.01; R2 = 0.59) but not females (P = 0.10). Conclusions: Depressive symptoms are positively associated with time spent sedentary in healthy young US adults, independent of MVPA, particularly in men. A reduction in sedentary time may provide a valuable, low cost, option in the prevention of depressive symptoms.
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美国健康年轻人的抑郁症状与久坐时间呈正相关
引言:老年人和患有慢性病的成年人的久坐时间和抑郁症状呈正相关;然而,人们对这种关系在一般健康的年轻人中知之甚少。本研究的目的是在大量健康年轻人样本中调查客观测量的久坐时间与抑郁症状之间的关系。方法:430名参与者(49%为男性;28±4岁;25.5±3.3 kg/m2)在10天内使用SenseWear迷你臂章测量了久坐和中等强度体力活动(MVPA)的时间。情绪状态抑郁量表用于评估抑郁症状。独立样本t检验调查了男性和女性在MVPA、久坐时间和情绪状态档案得分方面的差异。采用线性回归分析,调整MVPA、性别和体重指数,以检查久坐时间和抑郁症状之间的关系。结果:清醒时久坐不动的平均时间为681 ± 94 分钟/天。在MVPA不变的情况下,抑郁症状与久坐时间呈正相关(&bgr;=1.80;P<0.01;R2=0.54)。这种相关性在男性中具有统计学意义(.bgr;=2.06;P<0.01;R2=0.59),但在女性中没有统计学意义(P=0.10),尤其是男性。减少久坐时间可以为预防抑郁症状提供一种有价值、低成本的选择。
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