The Effect of Sit-Stand Workstations on Physical Activity in Sedentary Office Workers

NCT01863056 | Completed

• 1 other identifier: 1112M07302
• Study Type: interventional
• Target: 29
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study was to determine whether the installation of sit-stand work stations could lead to decreased sedentary time and increased physical activity during the workday among sedentary office workers.

Conditions

Sedentary

Keywords

Sedentary time; Non Exercise Activity; Sit Stand Workstation

Outcome Measures

Primary Outcomes (1)

• non-exercise activity

  Non-exercise activity was meausred by triple axis accelerometers during all waking hours in the control period (1 month) and in the intervention period (1 month). The two periods were then compared for each subject. Sitting time was also measured subjectively using a validated questionnaire: occupational sitting and physical activity questinnarie (OSPAQ) Hypothesis: Amount of time spent standing, walking, and other components of non-exercise activity will be higher during the standing intervention period relative to the control period (usual sitting).

  Measured constantly during the entire control period and measured constantly during the entire intervention period and the two periods were compared to determine change in non-exercise activity

Secondary Outcomes (8)

• Ecological Momentary Assesment Fatigue, appetite, energy levels Sitting/standing, Fatigue, appetite, energy levels Self-administered web-based ecological momentary assessments

  Twice per day during workdays (5 days a week) for 4 weeks of control period and 4 weeks of intervention period and the two periods were compared

• 24 hr Diet recall

  Once a week for 4 weeks of control period and 4 weeks of intervention period and the two periods were compared

• 24 hour Physical Activity Recall

  Once a week for 4 weeks of control period and 4 weeks of intervention period and the two periods were compared

• Productivity Survey

  Once a week for 4 weeks of control period and 4 weeks of intervention period and the two periods were compared

• Stress

  Once every two weeks for 4 weeks of control period and 4 weeks of intervention period and the two periods were compared

Other Outcomes (1)

• Non-Exercise Activity (1 year follow-up)

  1 Year follow-up after the end of the main study. it will be for 1 week of constant measurement of non-exercise activity.

Study Arms (2)

Sit-Stand Desk

EXPERIMENTAL

Cross-over trial: so one group got the intervention in period 1 and didn't get the intervention in period 2 (serving as control for self in period 2) and the other group got the intervention in period 2 and didn't get the intervention in period 1 (serving as control for self in period 1).

Other: Sit-Stand Desk

Control

NO INTERVENTION

Used normal work desk which only allows working sitting down

Interventions

Sit-Stand Desk OTHER

Subjects were asked to participate in the study for a total period of three months. Based on randomization, either the first or third month involved the active intervention to use an adjustable sit-stand desk. The other two months required the subjects to follow their usual work routine without the adjustable sit-stand desk. The control period month involved all the same measurements as the active intervention month, whereas the washout period, which was the 2nd (middle) month, did not involve any measurement and there was no contact with the subjects during the washout month.

Sit-Stand Desk

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Mostly sedentary (sitting ≥ 4 hour) during the workday.
• Age ≥ 18
• Anticipated using a single computer workstation for 20 hours or more per week

You may not qualify if:

• Unable to stand for at least two hours per workday (two hours over the whole workday, not consecutively)
• Reported severe musculoskeletal symptoms, specifically lower extremity or lower back pain.
• Diagnosed with or under treatment for diabetes, heart disease, cancer, orthostatic hypertension, varicose vein, autoimmune disease, or other chronic diseases.
• Pregnant women

Sponsors & Collaborators

• University of Minnesota: lead
• Mayo Clinic: collaborator

Study Sites (1)

Caldrea Inc.

Minneapolis, Minnesota, 55405, United States

Location

Related Publications (1)

• Dutta N, Walton T, Pereira MA. Experience of switching from a traditional sitting workstation to a sit-stand workstation in sedentary office workers. Work. 2015;52(1):83-9. doi: 10.3233/WOR-141971.

  PMID: 25425587 DERIVED

MeSH Terms

Conditions

Sedentary Behavior

Condition Hierarchy (Ancestors)

Behavior

Study Officials

• Mark Pereira, Ph.D.

  School of Public Health, University of Minnesota, Minneapolis

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: April 24, 2013
• First Posted: May 27, 2013
• Study Start: January 1, 2012
• Primary Completion: April 1, 2012
• Study Completion: July 1, 2013
• Last Updated: April 7, 2023

Record last verified: 2023-04

Locations

US (1)