NCT Number: NCT02932787
Effects of Installing Height-adjustable Workstations on Office Workers Workplace Sitting Time and Productivity
The purpose of this study was to look at the effects that height-adjustable workstations on occupational sitting time and workplace productivity in office workers. Participants workplace activity (sitting, standing and walking) and productivity was measured before the installation of the height-adjustable workstations. Workplace activity and productivity were then measured four weeks after the installation of height-adjustable workstations. The results were compared to a control group who received no intervention whilst the intervention had the height-adjustable workstations.
Looking for future studies?
Notify MeKey information
Conditions
Age range
18 year–65 year
Sex eligibility
All sexes
Study type
Interventional
Phase
Not applicable
About this study
Sedentary behaviour has been found to be ubiquitous within the workplace and due to the negative consequences of sedentary behaviour upon health, research has began to look at ways to reduce and interrupt sedentary behaviour.
Interventions that have introduced height-adjustable workstations into the workplace have been found to reduce sedentary behaviour. Some employees and employers are concerned that using height-adjustable workstations and trying to reduce workplace sedentary behaviour can lead to a loss of workplace productivity.
The present study looked at the effects of installing height-adjustable workstations on occupational sitting time and workplace productivity in desk-based workers. Workplace activity was measured objectively using ActivPal accelerometers and productivity was measured via self-report measures. Measurements took place at baseline and four weeks after receiving the height-adjustable workstation.
Who can participate
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
- age 18 to 65 years,
- working ≥0.6 full time equivalents,
- access to a work telephone and desktop computer with internet,
- not pregnant,
- no planned absence >1 week during the trial,
- not chair-bound or uniquely impaired such that reducing occupational sitting time was not feasible,
- no pre-existing musculoskeletal disorder.
Exclusion criteria
-
Treatment and study plan
Primary outcomes
-
Change in Workplace Sedentary Time
Time frame: Baseline (0 weeks), 4 weeks after installation of height-adjustable workstations
The amount of time a participant spends sitting whilst in the workplace (minutes). This was measured using a thigh-worn ActivPAL accelerometer.
Secondary outcomes
-
Change in Workplace Absenteeism Using the World Health Organisation Health and Work Performance Questionnaire
Time frame: Baseline (0 weeks), 4 weeks after installation of height-adjustable workstations
Self-reported absolute absenteeism (the amount of time a participant was absent from work for during the previous 7-days) measured using the World Health Organisation Health and Work Performance Questionnaire. This is calculated in relation to a participants contracted hours, therefore a negative score shows that a participant worked less than they are contracted to, where as a positive score means a participant reported working more hours than they are contracted to.
-
Change in Workplace Presenteeism Using the World Health Organisation Health and Work Performance Questionnaire
Time frame: Baseline (0 weeks), 4 weeks after installation of height-adjustable workstations
Self-reported absolute presenteeism (an employees productivity during working hours) measured using the World Health Organisation Health and Work Performance Questionnaire. The higher the percentage, the more productive a participant felt they were. 100% means that they felt they were productive the whole time they were working. Presenteeism can be impacted upon by illness and other health conditions, if a person was feeling ill or had a back problem, this may mean that they are less productive whilst at work.
Sponsors and collaborators
Lead sponsor
Sheffield Hallam University
Other
Registry information
Official study title
Effects of Installing Height-adjustable Workstations on Occupational Sitting Time and Workplace Productivity in Desk-based Workers
Important dates
- Study start
- 2013
- Primary completion
- 2015
- Study completion
- 2015
- First posted
- Oct 13, 2016
- Registry last updated
- Apr 28, 2020
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
Related clinical trials
Published trials that share one or more normalized conditions with this study.
Modifying the Workplace to Decrease Sedentary Behavior and Improve Health
NCT02376504
Total Worker Health, Workplace Inactivity
Boston, Massachusetts, United States
View Trial Details