Effects of an "Active-Workstation" Cluster RCT on Daily Waking Physical Behaviors.
Effects of an "Active-Workstation" Cluster RCT on Daily Waking Physical Behaviors.
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DOI：
10.1249/mss.0000000000002594
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发表时间：
2021-07-01
影响因子：
4.1
通讯作者：
John D
中科院分区：
文献类型：
--
作者：
Arguello D;Thorndike AN;Cloutier G;Morton A;Castaneda-Sceppa C;John D
通过针对超重办公室工作人员的意向治疗设计，在为期 12 个月的整群随机多成分干预中，评估从坐站到跑步机办公桌对久坐行为的影响。 66 名办公室工作人员被随机分为：对照组（N = 21；集群 = 8）、坐立式办公桌组（N = 23；集群 = 9）或跑步机办公桌组（N = 22；集群 = 7）。参与者在基线、第 3 个月、第 6 个月和第 12 个月佩戴 activPAL™ 加速度计 7 天，并定期收到有关其身体行为的反馈。主要结果是每日总静坐时间。探索性结果包括每日和工作场所总久坐、站立和迈步时间，以及每日和工作场所总久坐、站立和迈步次数。使用随机截距混合线性模型分析干预效果，考虑重复测量和聚类效应。 12 个月后，组间或组内每日总静坐时间没有显着差异。观察到第 3 个月，两个干预组的每日总站立时间和工作场所站立时间均有所增加（坐立式办公桌：平均 Δ±SD= 1.03±1.9 小时/天，工作时 1.10±1.87 小时；跑步机办公桌：平均 Δ±SD= 1.23±2.25 小时/天，工作时 1.44±2.54 小时）。第 3 个月，跑步机办公桌用户在工作场所的行走次数比对照组多（平均 Δ±SD= 0.69±0.87 小时）。在坐立式办公桌组中观察到第 6 个月每日总步数的增加（平均 Δ±SD= 0.82±1.62 小时/天），在跑步机办公桌组中观察到第 3 个月在工作场所的步数增加（平均 Δ±SD= 0.77±0.83 小时）。这些趋势仅在坐立式办公桌组中持续到第 12 个月。主动工作站干预可能会导致日常站立和行走的短期改善。跑步机办公桌用户久坐的次数较少，但坐站式办公桌会导致更频繁地转向直立的身体行为。
Evaluate the effects of sit-to-stand and treadmill desks on sedentary behavior during a 12-month, cluster-randomized multi-component intervention with an intent-to-treat design in overweight office workers. Sixty-six office workers were cluster-randomized into a: control (N=21; clusters=8), sit-to-stand desk (N=23; clusters=9) or treadmill desk (N=22; clusters=7) group. Participants wore an activPAL™ accelerometer for 7 days at baseline, month-3, month-6 and month-12 and received periodic feedback on their physical behaviors. The primary outcome was total daily sedentary time. Exploratory outcomes included total daily and workplace sedentary, standing and stepping time, and the number of total daily and workplace sedentary, standing and stepping bouts. Intervention effects were analyzed using random intercept mixed-linear-models accounting for repeated measures and clustering effects. Total daily sedentary time did not significantly differ between- or within-groups after 12-months. Month-3 gains were observed in total daily and workplace standing time in both intervention groups (sit-to-stand desk: mean Δ±SD= 1.03±1.9 h/day and 1.10±1.87 h at work; treadmill desk: mean Δ±SD= 1.23±2.25 h/day and 1.44±2.54 h at work). At month-3 the treadmill desk users stepped more at the workplace than the control group (mean Δ±SD= 0.69±0.87 h). Month-6 gains in total daily stepping were observed within the sit-to-stand desk group (mean Δ±SD= 0.82±1.62 h/day) and month-3 gains in stepping at the workplace were observed for the treadmill desk group (mean Δ±SD= 0.77±0.83 h). These trends were sustained through month-12 in only the sit-to-stand desk group. Active-workstation interventions may cause short-term improvements in daily standing and stepping. Treadmill desk users engaged in fewer sedentary bouts but sit-to-stand desks resulted in more frequent transitions to upright physical behaviors.