Barwon Epidemiology and Biostatistics Unit, School of Medicine, Deakin University, PO Box 281, Geelong, Victoria 3220, Australia.
Aust N Z J Psychiatry. 2011 Dec;45(12):1047-52. doi: 10.3109/00048674.2011.621063. Epub 2011 Nov 7.
The aim of ths study was to examine the association between habitual physical activity and positive and negative affect.
This cross-sectional study included 276 women aged 20 +, from the Geelong Osteoporosis Study. Habitual physical activity and other lifestyle exposures were assessed by questionnaire, concurrent with anthropometric assessments. Physical activity was categorized as very active, moderately active or sedentary. Positive and negative affect scores were derived from the validated 20 item Positive and Negative Affect Schedule (PANAS) self-report and were categorized into tertiles.
There was a pattern of lower positive affect scores for lower levels of physical activity. With very active as the reference category, the odds for having a positive affect score in the highest tertile were sequentially lower for those who were moderately active (OR = 0.53, 95%CI 0.28-1.01) and sedentary (OR = 0.28, 95%CI 0.10-0.75). Associations were sustained after adjusting for body mass index and polypharmacy (OR = 0.50, 95%CI 0.26-0.96 and OR = 0.25, 95%CI 0.09-0.72, respectively). These associations were not explained by age, negative affect score or other exposures. No association was detected between physical activity and negative affect scores.
This study reports that higher positive affect scores, encompassing emotions such as interest, excitement, enthusiasm and alertness, are associated with higher levels of habitual physical activity. These observations warrant further investigations into possible mechanistic interplay between neurobiological and psychosocial factors that underpin this association.
本研究旨在探讨习惯性体力活动与正性和负性情绪之间的关系。
本横断面研究纳入了 276 名年龄在 20 岁及以上的来自 Geelong 骨质疏松研究的女性。通过问卷评估习惯性体力活动和其他生活方式暴露情况，同时进行人体测量评估。体力活动分为非常活跃、中度活跃和久坐不动。正性和负性情绪评分来自经过验证的 20 项正性和负性情绪量表（PANAS）自我报告，并分为三分位。
体力活动水平较低的个体正性情绪评分较低。以非常活跃为参考类别，正性情绪评分最高三分位的可能性依次降低，中度活跃者（OR=0.53，95%CI 0.28-1.01）和久坐不动者（OR=0.28，95%CI 0.10-0.75）。调整体重指数和多药治疗后，关联仍然存在（OR=0.50，95%CI 0.26-0.96 和 OR=0.25，95%CI 0.09-0.72）。这些关联不能用年龄、负性情绪评分或其他暴露来解释。体力活动与负性情绪评分之间没有关联。
本研究报告称，更高的正性情绪评分，包括兴趣、兴奋、热情和警觉等情绪，与更高水平的习惯性体力活动相关。这些观察结果值得进一步研究神经生物学和心理社会因素之间可能的机制相互作用，这些因素是这种关联的基础。
