Modifying the Workplace to Decrease Sedentary Behavior and Improve Health

Study Overview
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Brief Summary
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The primary objective of this project is to determine the effects of decreasing sedentary behavior at work by at least 3hrs/day using treadmill (walking and standing) and sit-to-stand (standing only) workstations on the health of overweight office workers.

Official Title
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Modifying the Workplace to Decrease Sedentary Behavior and Improve Health

Conditions
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Workplace Inactivity, Total Worker Health

Intervention / Treatment
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* Behavioral: Active workplace


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Body Mass Index greater than 25 kg.m-2 Does not engage in any structured physical activity lasting at least 30 mins for more than 2 days/week Employed in a full-time sedentary desk job. No major orthopedic limitations or medical conditions that prevents walking or standing at a treadmill work sit-stand workstation. Exclusion Criteria: -

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Treadmill workstation<br>Participants will be provided with a treadmill workstation to be more active at the workplace Active Workplace | Behavioral: Active workplace<br>* This is a 12-month, cluster-randomized trial with an intent-to-treat design to determine the effects of using treadmill and sit-to-stand workstations at the workplace on health variables in overweight office workers (N=66) with seated desk jobs and (2) to compare the efficacies of treadmill and sit-to-stand workstations in decreasing workplace sedentary behavior. The intervention will examine the effects of using these workstations on weight, cardiovascular and metabolic health variables , musculoskeletal discomfort, psychological affect and job stress. The study will also measure change in time spent sitting, standing and walking will be measured using wearable non-invasive acceleration sensors.<br>|
| Experimental: Sit-to-Stand workstation<br>Participants will be provided with a sit-to-stand workstation to be decrease sitting time at the workplace Active Workplace | Behavioral: Active workplace<br>* This is a 12-month, cluster-randomized trial with an intent-to-treat design to determine the effects of using treadmill and sit-to-stand workstations at the workplace on health variables in overweight office workers (N=66) with seated desk jobs and (2) to compare the efficacies of treadmill and sit-to-stand workstations in decreasing workplace sedentary behavior. The intervention will examine the effects of using these workstations on weight, cardiovascular and metabolic health variables , musculoskeletal discomfort, psychological affect and job stress. The study will also measure change in time spent sitting, standing and walking will be measured using wearable non-invasive acceleration sensors.<br>|
| No Intervention: Control<br>Participants will be asked to engage in three 10 min walking bouts each work day | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in Weight |  | Baseline, 3, 6, 12 months |