Stand & Move at Work

Study Overview
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Brief Summary
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A trial testing the efficacy of sit-stand workstations on decreasing sitting time and increasing light-intensity physical activity in samples of office worksites.

Detailed Description
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With traditional approaches to increasing MVPA (moderate to vigorous physical activity) in the workplace being unsustainable due to the requirement of deliberate and dedicated time away from work, this group-randomized trial will test the efficacy of sit-stand workstations on decreasing sitting time and increasing light-intensity physical activity (LPA) in a highly generalizable sample of office worksites using a multi-level intervention with high potential for dissemination.

Official Title
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Stand & Move at Work: A Group Randomized Trial

Conditions
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Obesity, Hypertension, Diabetes

Intervention / Treatment
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* Device: Sit-Stand workstation
* Behavioral: Move


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Worksite-level inclusion criteria: Size: Small to moderate size worksite (20-60 employees) Schedule: >80% of employees full time Occupation: Seated office work, primarily computer- and- telephone-based work, little movement or walking Wellness environment: Not currently undergoing a wellness program aimed at increasing activity at work Workstations: Willing to have sit-stand workstations installed at a worksite Willing to be randomized: Willing to be randomized to either intervention conditions Member-level inclusion criteria: Age: 18 years and older Health status: Generally good health and able to safely increase LPA and reduce sitting time Employment status: Any sedentary job, sitting most of the say, little standing or walking Occupation: Traditional sitting desk, willing to have a sit-stand workstation installed at desk Workstation: traditional sitting desk;willing to have a sit-stand workstation installed at desk Exclusion Criteria: contraindication to prolonged standing at work

Ages Eligible for Study
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Minimum Age: 18 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 |
| --- | --- |
| Active Comparator: Move<br>A multi-level individual, social, environmental, and organizational intervention targeting increases in light-intensity physical activity in the workplace. | Behavioral: Move<br>* A multi-level individual, social, environmental, and organizational intervention targeting increases in light-intensity physical activity in the workplace<br>|
| Experimental: Stand & Move<br>Move intervention (A multi-level individual, social, environmental, and organizational intervention targeting increases in light-intensity physical activity in the workplace) plus the installation of a sit-stand workstation. | Device: Sit-Stand workstation<br>* Installation of a sit-stand desk at work<br>Behavioral: Move<br>* A multi-level individual, social, environmental, and organizational intervention targeting increases in light-intensity physical activity in the workplace<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mean Change in Light-intensity Physical Activity at Work From Baseline to 12 Months | Measured via 7d of activPAL accelerometry (value at 12 months minus value at baseline) | 1 year | 
| Mean Change in Sitting Time at Work From Baseline to 12 Months | Measured via 7d of activPAL accelerometry (value at 12 months minus value at baseline) | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Clustered Metabolic Risk Score From Baseline to 12 Months | Clustered metabolic risk score (fasting glucose, insulin, triglycerides, HDL-cholesterol, blood pressure); value at 12 months minus value at baseline; higher scores indicate better outcome. The Z-score for each component (fasting glucose, insulin, triglycerides, HDL-cholesterol, blood pressure) based on the baseline mean and standard deviation of the entire group was computed and summed for each participant (HDL z-score was subtracted rather than added). The sum of these z-scores represents the metabolic risk score. | 1 year |