Effects of an “Active-Workstation” Cluster RCT on Daily Waking Physical Behaviors
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2021/07/01
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Description:Purpose: This study aimed to evaluate the effects of sit-to-stand and treadmill desks on sedentary behavior during a 12-month, cluster-randomized multicomponent intervention with an intent-to-treat design in overweight office workers. Methods: Sixty-six office workers were cluster-randomized into a control (n = 21; 8 clusters), sit-to-stand desk (n = 23; 9 clusters), or treadmill desk (n = 22; 7 clusters) group. Participants wore an activPAL(TM) accelerometer for 7 d 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. Results: 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 [DELTA] +/- SD, 1.03 +/- 1.9 h[middle dot]d-1 and 1.10 +/- 1.87 h at work; treadmill desk: mean [DELTA] +/- SD, 1.23 +/- 2.25 h[middle dot]d-1 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 [DELTA] +/- SD, 0.69 +/- 0.87 h). Month 6 gains in total daily stepping were observed within the sit-to-stand desk group (mean [DELTA] +/- SD, 0.82 +/- 1.62 h[middle dot]d-1), and month 3 gains in stepping at the workplace were observed for the treadmill desk group (mean [DELTA] +/- SD, 0.77 +/- 0.83 h). These trends were sustained through month 12 in only the sit-to-stand desk group. Conclusions: 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. [Description provided by NIOSH]
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ISSN:0195-9131
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Volume:53
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Issue:7
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NIOSHTIC Number:nn:20063328
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Citation:Med Sci Sports Exerc 2021 Jul; 53(7):1434-1445
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Contact Point Address:Diego Arguello, M.S., 360 Huntington Ave., 520 Behrakis, Boston, MA 02115
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Email:arguello.d@Northeastern.edu
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Federal Fiscal Year:2021
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Performing Organization:Northeastern University, Boston
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Peer Reviewed:True
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Start Date:20140401
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Source Full Name:Medicine and Science in Sports and Exercise
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End Date:20160331
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Main Document Checksum:urn:sha-512:f1b605da76c74fe56121de1c10b67d29eb50f452bbfb2260cdd8b90308a1c6c472b410a01536277b11c08db569b7752afea967dd7d60eeb4cd31e9a98859e860
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