Assessing the Effects Of Treadmill And Sit-To-Stand Desks On LPA, Sitting Time, and Cardio-metabolic Risk
| Status: | Not yet recruiting |
|---|---|
| Healthy: | No |
| Age Range: | 18 - 70 |
| Updated: | 2/24/2018 |
| Start Date: | May 1, 2018 |
| End Date: | April 1, 2019 |
| Contact: | Mark Pereira, PhD |
| Email: | perei004@umn.edu |
| Phone: | 612-624-4173 |
Assessing the Effects Of Treadmill And Sit-To-Stand Desks On Light Physical Activity, Sitting Time, And Cardio-metabolic Risk
The purpose of this study is to:
1. Evaluate the relative efficacy of a treadmill desk intervention and a sit/stand desk
intervention on light physical activity and sitting behaviors at work over four weeks;
2. Evaluate the relative efficacy of a treadmill desk intervention and a sit/stand desk
intervention on the cardiometabolic risk profiles (composite measure of fasting glucose,
insulin, triglycerides, HDL-cholesterol, and blood pressure)over a four-week period.
1. Evaluate the relative efficacy of a treadmill desk intervention and a sit/stand desk
intervention on light physical activity and sitting behaviors at work over four weeks;
2. Evaluate the relative efficacy of a treadmill desk intervention and a sit/stand desk
intervention on the cardiometabolic risk profiles (composite measure of fasting glucose,
insulin, triglycerides, HDL-cholesterol, and blood pressure)over a four-week period.
American workers spend 70-80% of their time at work sitting at a desk, working on a computer,
talking on a telephone, and sitting in meetings. Traditional approaches to increase MVPA in
the workplace may not be sustainable as they require deliberate and dedicated time away from
work, and may be perceived as harmful to productivity. Sedentary behavior interventions, in
contrast, do not interfere with daily tasks and productivity and require small but cumulative
changes in posture and LPA throughout the workday.
Sedentary behavior interventions in the worksite, including those conducted by our team, have
shown promising effects. Studies that have used multi-level approaches targeting individual,
social, and environmental factors have been most effective. The most robust environmental
support has been the use of sit-stand workstations, providing distinct opportunities for
workers to reduce sitting while maintaining productivity. However, treadmill desks may
provide an even greater opportunity to both reduce sitting and increase LPA during the
workday. Thus, a pilot study is required to test the efficacy of two approaches to reduce
sitting and increase LPA in the workplace.
talking on a telephone, and sitting in meetings. Traditional approaches to increase MVPA in
the workplace may not be sustainable as they require deliberate and dedicated time away from
work, and may be perceived as harmful to productivity. Sedentary behavior interventions, in
contrast, do not interfere with daily tasks and productivity and require small but cumulative
changes in posture and LPA throughout the workday.
Sedentary behavior interventions in the worksite, including those conducted by our team, have
shown promising effects. Studies that have used multi-level approaches targeting individual,
social, and environmental factors have been most effective. The most robust environmental
support has been the use of sit-stand workstations, providing distinct opportunities for
workers to reduce sitting while maintaining productivity. However, treadmill desks may
provide an even greater opportunity to both reduce sitting and increase LPA during the
workday. Thus, a pilot study is required to test the efficacy of two approaches to reduce
sitting and increase LPA in the workplace.
Inclusion Criteria:
- A BMI of at least 25
- Not currently pregnant or planning to become pregnant during the 14 week study period.
- Able to read and write in English.
- No current use of a sit/stand or treadmill desk.
- Work that is done in a predominately seated position.
- Working at UMN West Bank Office Building at least 30 hours per week.
- Not currently meeting physical activity guidelines.
- No balance issues (i.e. healthy vestibular system)
- No contraindications to standing or walking
- Weight stable for the past 12 months.
- Taking no more than 3 prescription drugs, with stable dosage, over the past 12 months
Exclusion Criteria:
- A BMI less than 25.
- Currently pregnant or actively trying to become pregnant during the 14 week study
period.
- Unable to read and write in English.
- Working less than 30 hours per week.
- Currently meeting physical activity guidelines.
- Non-sedentary job.
- Current use of a sit/stand or treadmill desk
- Any reported balance problems
- Anyone with contraindications to standing or walking
- Weight fluctuations of more than +/- 10% of their body weight in the past year
- Individuals taking more than 4 prescription drugs and/or unstable dosage of
medications over the past 12 months if taking 3 or less.
We found this trial at
1
site
1300 13th Avenue South
Minneapolis, Minnesota 55454
Minneapolis, Minnesota 55454
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