Health-related quality of life and intensity-specific physical activity in high-risk adults attending a behavior change service within primary care

ObjectivesHealth-related quality of life (HRQoL) is an important outcome for health interventions, such as physical activity (PA) promotion among high-risk populations. The aim of this study was to investigate levels of PA and HRQoL, and associations between PA and HRQoL, in participants attending a behavior change service within primary care in Norway.MethodsAdult participants (≥ 18 years) from 32 Healthy Life Centers (HLCs) in four regions of Norway, who provided valid data on HRQoL (SF-36) and PA (ActiGraph accelerometer) were included (N = 835). HRQoL scores were compared to normative data by independent sample t-tests. Associations between eight dimensions of HRQoL and time spent sedentary (SED), in light PA (LPA) or in moderate to vigorous PA (MVPA) were determined using general linear models adjusted for relevant confounders.ResultsNineteen percent of the participants (mean age 50; body mass index 32) met PA recommendations of > 150 min MVPA per week. SF-36 scores were 10 to 28 points lower than the norm (all p < 0.001). Positive associations were found between MVPA and the SF-36 dimensions physical functioning, role physical, general health and vitality, (all p < 0.045). LPA was positively associated with physical functioning, role physical, general health, vitality and role emotional (all p < 0.046). Time spent SED was negatively associated with physical functioning, general health, vitality, social functioning and mental health (all p < 0.030).ConclusionsIndividuals attending a Norwegian behavior change service within primary care had low PA level and low HRQoL compared to the general population. Our study suggest there is a positive dose-response relationship between PA and HRQoL, and a negative relationship between SED and HRQoL. Furthermore, that specific PA intensities and SED are related to different dimensions of HRQoL.

本研究旨在探讨挪威初级保健机构内行为改变服务参与者中，身体活动水平与健康相关生活质量（HRQoL）的现状，以及身体活动与HRQoL之间的关联。研究对象为来自挪威四个地区32个健康生活中心（HLC）的成人参与者（≥18岁），他们提供了关于HRQoL（SF-36）和身体活动（ActiGraph加速度计）的有效数据（N = 835）。通过独立样本t检验将HRQoL评分与常模数据进行比较。利用调整了相关混杂因素的广义线性模型，确定了HRQoL的八个维度与久坐时间（SED）、轻度身体活动（LPA）或中度至剧烈身体活动（MVPA）之间的关联。结果显示，19%的参与者（平均年龄50岁；体重指数32）符合每周>150分钟MVPA的身体活动推荐标准。SF-36评分比常模低10至28分（所有p < 0.001）。研究发现，MVPA与SF-36的生理功能、角色功能、总体健康和活力维度呈正相关（所有p < 0.045）。LPA与生理功能、角色功能、总体健康、活力和情绪角色呈正相关（所有p < 0.046）。久坐时间与生理功能、总体健康、活力、社会功能和心理健康呈负相关（所有p < 0.030）。结论表明，接受挪威初级保健机构内行为改变服务的个体，其身体活动水平和HRQoL与普通人群相比均较低。本研究表明，身体活动与HRQoL之间存在正向剂量反应关系，而久坐时间与HRQoL之间存在负向关系。此外，特定的身体活动强度和久坐时间与HRQoL的不同维度相关。