Workplace InactivityNCT02932787
Effects of Installing Height-adjustable Workstations on Office Workers Workplace Sitting Time and Productivity
A study testing Height-adjustable workstation in people with Workplace Inactivity, run by Sheffield Hallam University.
Trial summary
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… Read more about this study
- Who is it for?
- Ages 18 to 65 yearsHealthy volunteers can take part
- Conditions the study is for
- Workplace Inactivity
- What is being tested?
- Height-adjustable workstation
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 31 participants
- Where
- No sites listed yet
- Study dates
- Dec 2013to Nov 2015
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- 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.
Who cannot join
- -
About this study
Official title: Effects of Installing Height-adjustable Workstations on Occupational Sitting Time and Workplace Productivity in Desk-based Workers
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.
Read the detailed description
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.
- Conditions
- Workplace Inactivity
- Being tested
- Height-adjustable workstation
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Height-adjustable workstationDevice
| Study group | Role | What they receive |
|---|---|---|
| Height-adjustable workstation | Experimental | Participants received a height-adjustable workstation for four weeks Receives: Device: Height-adjustable workstation |
| Control | No intervention | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Workplace Sedentary Time
The amount of time a participant spends sitting whilst in the workplace (minutes). This was measured using a thigh-worn ActivPAL accelerometer.
Measured: Baseline (0 weeks), 4 weeks after installation of height-adjustable workstations
Secondary outcomes (2)
Change in Workplace Absenteeism Using the World Health Organisation Health and Work Performance Questionnaire
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.
Measured: Baseline (0 weeks), 4 weeks after installation of height-adjustable workstations
Change in Workplace Presenteeism Using the World Health Organisation Health and Work Performance Questionnaire
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.
Measured: Baseline (0 weeks), 4 weeks after installation of height-adjustable workstations
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Oct 2016 (estimated)
- Study startDec 2013
- Primary completionNov 2015
- Study completionNov 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Workplace InactivityStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 31 participants (actual)
Sponsor and investigators
- Lead sponsor
- Sheffield Hallam University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Simon H Till, Principal investigator, Sheffield Hallam University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02932787
- Sponsor's protocol ID
- SHU-AWS-RCT
- Status last verified
- Apr 2020
- First submitted
- 23 Sep 2016
- Last updated
- 28 Apr 2020
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Neuhaus M, Eakin EG, Straker L, Owen N, Dunstan DW, Reid N, Healy GN. Reducing occupational sedentary time: a systematic review and meta-analysis of evidence on activity-permissive workstations. Obes Rev. 2014 Oct;15(10):822-38. doi: 10.1111/obr.12201. Epub 2014 Jul 11.
PubMed 25040784Wilmot EG, Edwardson CL, Achana FA, Davies MJ, Gorely T, Gray LJ, Khunti K, Yates T, Biddle SJ. Sedentary time in adults and the association with diabetes, cardiovascular disease and death: systematic review and meta-analysis. Diabetologia. 2012 Nov;55(11):2895-905. doi: 10.1007/s00125-012-2677-z. Epub 2012 Aug 14.
PubMed 22890825Kazi A, Duncan M, Clemes S, Haslam C. A survey of sitting time among UK employees. Occup Med (Lond). 2014 Oct;64(7):497-502. doi: 10.1093/occmed/kqu099. Epub 2014 Aug 18.
PubMed 25135938Kessler RC, Barber C, Beck A, Berglund P, Cleary PD, McKenas D, Pronk N, Simon G, Stang P, Ustun TB, Wang P. The World Health Organization Health and Work Performance Questionnaire (HPQ). J Occup Environ Med. 2003 Feb;45(2):156-74. doi: 10.1097/01.jom.0000052967.43131.51.
PubMed 12625231
Study at a glance
From the registry record, last updated by the sponsor on 28 Apr 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Installing Height-adjustable Workstations on Occupational Sitting Time and Workplace Productivity in Desk-based Workers
- ClinicalTrials.gov ID
- NCT02932787
- Acronym / sponsor ID
- SHU-AWS-RCT
- Conditions
- Workplace Inactivity
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 31 participants (actual)
- Lead sponsor
- Sheffield Hallam UniversityUniversity, hospital or other
- Study start
- Dec 2013
- Primary completion
- Nov 2015 (actual)
- Study completion
- Nov 2015 (actual)
- First posted
- 13 Oct 2016 (estimated)
- Results
- Posted 28 Apr 2020
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
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.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Height-adjustable workstation | Experimental | Device: Height-adjustable workstationParticipants received a height-adjustable workstation for four weeks |
| Control | No intervention | – |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- 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,
Key exclusion criteria (1 listed)
- -
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Height-adjustable workstation | Device | Height-adjustable workstation |
Primary outcome
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.
2 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
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
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Apr 2020.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 25040784Neuhaus M, Eakin EG, Straker L, Owen N, Dunstan DW, Reid N, Healy GN. Reducing occupational sedentary time: a systematic review and meta-analysis of evidence on activity-permissive workstations. Obes Rev. 2014 Oct;15(10):822-38. doi: 10.1111/obr.12201. Epub 2014 Jul 11.
- Background: PubMed 22890825Wilmot EG, Edwardson CL, Achana FA, Davies MJ, Gorely T, Gray LJ, Khunti K, Yates T, Biddle SJ. Sedentary time in adults and the association with diabetes, cardiovascular disease and death: systematic review and meta-analysis. Diabetologia. 2012 Nov;55(11):2895-905. doi: 10.1007/s00125-012-2677-z. Epub 2012 Aug 14.
- Background: PubMed 25135938Kazi A, Duncan M, Clemes S, Haslam C. A survey of sitting time among UK employees. Occup Med (Lond). 2014 Oct;64(7):497-502. doi: 10.1093/occmed/kqu099. Epub 2014 Aug 18.
- Background: PubMed 12625231Kessler RC, Barber C, Beck A, Berglund P, Cleary PD, McKenas D, Pronk N, Simon G, Stang P, Ustun TB, Wang P. The World Health Organization Health and Work Performance Questionnaire (HPQ). J Occup Environ Med. 2003 Feb;45(2):156-74. doi: 10.1097/01.jom.0000052967.43131.51.
Related trials for Workplace Inactivity
Not yet recruiting
Cost-effectiveness, Impact of a Workplace-based Intervention to Reduce Occupational Sitting Time in Office-based Workers
Physical Inactivity, Sedentary Behavior
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Simon H Till principal investigator
Sheffield Hallam University
Questions about this trial
What is this clinical trial studying?
A study testing Height-adjustable workstation in people with Workplace Inactivity, run by Sheffield Hallam University.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 28 Apr 2020. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 28 Apr 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in Workplace Sedentary Time (time frame: Baseline (0 weeks), 4 weeks after installation of height-adjustable workstations). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02932787, which also lists 4 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Apr 2020.