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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03236597
Other study ID # STUDY000000866
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date October 5, 2018
Est. completion date December 8, 2019

Study information

Verified date January 2020
Source University of Minnesota
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to:

1. Evaluate the relative efficacy of a treadmill desk intervention on light physical activity and sitting behaviors at work over four weeks;

2. Evaluate the relative efficacy of a treadmill desk intervention on the cardiovascular risk profiles (blood pressure, body weight, body fat percentage) over a four-week period.


Description:

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 this approach to reduce sitting and increase LPA in the workplace.


Recruitment information / eligibility

Status Completed
Enrollment 15
Est. completion date December 8, 2019
Est. primary completion date December 7, 2019
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 70 Years
Eligibility Inclusion Criteria:

- Not currently pregnant or planning to become pregnant during the 11 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 stationary 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

- Answer of no to all Physical Activity Readiness-Questionnaire (PAR-Q) questions

Exclusion Criteria:

- 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 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.

- Answer of yes to any PAR-Q questions

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Treadmill desk
A standing height desk with a treadmill attached.

Locations

Country Name City State
United States University of Minnesota West Bank Office Building Minneapolis Minnesota

Sponsors (1)

Lead Sponsor Collaborator
University of Minnesota

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Time spent sitting The change in time spent sitting as measured by the ActivPAL, from baseline to the final week of each intervention condition 7-days
Primary Time spent standing The change in time spent standing as measured by the ActivPAL, from baseline to the final week of each intervention condition 7-days
Primary Time spent moving The change in time spent moving as measured by the ActivPAL, from baseline to the final week of each intervention condition 7-days
Secondary Cardiovascular risk: Blood pressure The change in the cardiovascular risk, as measured via blood pressure from baseline to the final week of each condition. 7-days
Secondary Cardiovascular risk: Body weight The change in the cardiovascular risk, as measured via body weight from baseline to the final week of each condition. 7-days
Secondary Cardiovascular risk: Percent body fat The change in the cardiovascular risk, as measured via percent body fat from baseline to the final week of each condition. 7-days
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