Holmes Anthony J, Quinn Tyler D, Conroy Molly B, Paley Joshua L, Huber Kimberly A, Gibbs Bethany Barone
Department of Health and Human Development, University of Pittsburgh, Pittsburgh, PA.
Department of Epidemiology and Biostatistics, West Virginia University School of Public Health, Morgantown, WV.
Transl J Am Coll Sports Med. 2023 Spring;8(2). doi: 10.1249/tjx.0000000000000225. Epub 2023 Feb 10.
INTRODUCTION/PURPOSE: Sedentary behavior (SB) is common in desk-based work and prolonged periods of SB are associated with negative health outcomes. This study assessed associations between workplace characteristics and setting and movement patterns during working hours.
This secondary analysis used baseline data from the Reducing Sedentary Behavior to Decrease Blood Pressure (RESET BP) clinical trial which enrolled inactive, desk-based workers with elevated blood pressure (=271; mean age: 45.3±11.6 years; body mass index (BMI): 30.66±7.1 kg/m; 59.4% women). Physical and social workplace characteristics were assessed by a study-developed questionnaire and the Office Environment and Sitting Scale (OFFESS). Participants also wore an activPAL activity monitor for 7 days and reported working hours in a diary to measure SB and physical activity (PA) specifically while working. Linear regression was used to analyze cross-sectional associations between workplace characteristics and SB and PA. A stratified analysis was also conducted to assess associations among home-based and in-office desk workers separately. Analyses were adjusted for age, gender, BMI, and work wear time.
Participants spent 77% of working hours in SB. Public vs. private offices, working in-office vs. at home, higher local connectivity, and greater overall connectedness were associated with lower SB and/or greater PA (all p<0.05). Higher frequency of face-to-face interactions, and greater visibility and proximity to co-workers was associated with less SB and more PA (all p<0.05). For example, home-based workers had more total SB (+17.2±8.4 mins/day), more SB bouts ≥30 mins (+39.1±12.8 mins/day), and less steps (695±201 steps/day) than in-office employees. Stratification by office setting revealed differences in associations between SB and PA and workplace characteristics.
More public, open spaces with more social interactions and physical walkways could improve SB and PA patterns during work. Home-based workers had more SB, less PA, and unique associations of these activities with workplace characteristics, suggesting a need for tailored interventions.
引言/目的：久坐行为（SB）在伏案工作中很常见，长时间的久坐行为与负面健康结果相关。本研究评估了工作场所特征、环境与工作时间内运动模式之间的关联。
这项二次分析使用了“减少久坐行为以降低血压（RESET BP）”临床试验的基线数据，该试验招募了缺乏运动、从事伏案工作且血压升高的员工（n = 271；平均年龄：45.3±11.6岁；体重指数（BMI）：30.66±7.1 kg/m²；59.4%为女性）。通过研究制定的问卷和办公环境与坐姿量表（OFFESS）评估工作场所的物理和社会特征。参与者还佩戴了activPAL活动监测器7天，并在日记中记录工作时间，以专门测量工作时的久坐行为和身体活动（PA）。采用线性回归分析工作场所特征与久坐行为和身体活动之间的横断面关联。还进行了分层分析，以分别评估在家工作和在办公室工作的员工之间的关联。分析对年龄、性别、BMI和工作着装时间进行了调整。
参与者在工作时间中有77%处于久坐状态。公共办公室与私人办公室、在办公室工作与在家工作、更高的本地连通性以及更高的整体连通性与更低的久坐行为和/或更多的身体活动相关（所有p<0.05）。面对面互动频率更高、与同事的可见性和接近度更高与更少的久坐行为和更多的身体活动相关（所有p<0.05）。例如，在家工作的员工比在办公室工作的员工有更多的总久坐时间（+17.2±8.分钟/天）、更多持续时间≥30分钟的久坐时段（+39.1±12.8分钟/天）以及更少的步数（695±201步/天）。按办公环境分层显示了久坐行为和身体活动与工作场所特征之间关联的差异。
更多公共、开放的空间，以及更多的社交互动和物理通道，可以改善工作期间的久坐行为和身体活动模式。在家工作的员工有更多的久坐行为、更少的身体活动，并且这些活动与工作场所特征有独特的关联，这表明需要进行针对性的干预。
