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Trial registered on ANZCTR


Registration number
ACTRN12612000072819
Ethics application status
Approved
Date submitted
13/01/2012
Date registered
16/01/2012
Date last updated
22/11/2012
Type of registration
Retrospectively registered

Titles & IDs
Public title
The Stand@Work Pilot Study. A randomised controlled trial to see if using sit-stand workstations reduces sitting time in office workers
Scientific title
In office workers, does using a sit-stand workstation lead to reductions in sitting time?
Secondary ID [1] 279723 0
Nil
Universal Trial Number (UTN)
Trial acronym
Stand@Work
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Prolonged sitting during work and outside of work 285558 0
Condition category
Condition code
Public Health 285750 285750 0 0
Health promotion/education

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
The intervention involves giving office workers a sit-stand workstation to use for 4 weeks for all workdays each week (3 to 5 workdays per week depending on full-time or part-time employment status). The sit-stand workstation allows office workers to vary their posture throughout the workday between sitting and standing. Prior to receiving the sit-stand workstation, participants will receive brief training on how to use the sit-stand workstations, including how to adjust workstation height and the correct ergonomic set ups while sitting or standing.

Participants will complete a workday sitting and total sitting questionnaire at 4 weeks pre-intervention (baseline), 2 weeks pre-intervention (pre-intervention), and 2 weeks mid-intervention (intervention). At each measurement timepoint, participants will wear activity monitors for that week (7 days).

After the intervention, each participant will attend one focus group faciliated by two members of the research team. Each focus group will involve 5 to 6 participants and will run for approximately 45 minutes. Participants will provide their views on a range of issues relate to their time using the sit-stand workstation (e.g., effects on productivity, physical discomfort, ease of use, enjoyable, feasibility in the office)
Intervention code [1] 284019 0
Behaviour
Comparator / control treatment
This study has a randomised controlled trial design (waitlist control) with crossover and rolling recruitment. Control participants will be on the waiting list for 4 weeks before they receive the sit-stand workstations.
Control group
Active

Outcomes
Primary outcome [1] 286274 0
Self-reported time spent sitting, standing, walking or doing physically demanding tasks at work. (Occupational Sitting and Physical Activity Questionnaire, OSPAQ)
Timepoint [1] 286274 0
4 weeks pre-intervention (baseline)
2 weeks pre-intervention (pre-intervention)
2 weeks mid-intervention (intervention)
Primary outcome [2] 286275 0
Self-reported sitting time in different domains (e.g., at work, for transport, using the computer) by work and nonworkdays. (Workforce Sitting Questionnaire, WSQ)
Timepoint [2] 286275 0
4 weeks pre-intervention (baseline)
2 weeks pre-intervention (pre-intervention)
2 weeks mid-intervention (intervention)
Primary outcome [3] 286276 0
Objectively measured sedentary and activity time. The Actigraph accelerometer will assess time in different activity intensity levels (i.e., sedentary, light, moderate-to-vigorous). The ActivPAL will measure time spent in different postures (i.e., sitting, standing)
Timepoint [3] 286276 0
4 weeks pre-intervention (baseline)
2 weeks pre-intervention (pre-intervention)
2 weeks mid-intervention (intervention)
Secondary outcome [1] 295491 0
Qualitative focus group data on perceptions and attitudes about using the sit-stand workstations. E.g., ease of use, any discomfort, impact on productivity, feasibility in the workplace, enjoyableness
Timepoint [1] 295491 0
2 weeks post-intervention

Eligibility
Key inclusion criteria
Staff working at the Heart Foundation Sydney and Newcastle offices. Participants must be over the age of 18 years, work at least 3 days per week, and have sufficient English language proficiency to take part in the study.
Minimum age
18 Years
Maximum age
No limit
Gender
Both males and females
Can healthy volunteers participate?
Yes
Key exclusion criteria
Working less than 3 days per week

Study design
Purpose of the study
Prevention
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
This study has a randomised controlled trial design (waitlist control group) with crossover and rolling recruitment. Eligible staff members who express interest in being involved will be randomly drawn from a ballot and assigned to the intervention or control condition after completing a consent form to participate in the study. Participants allocated to the intervention will use a sit-stand workstation for 4 weeks, while control participants will be on the waiting list for 4 weeks before they receive the sit-stand workstations. Allocation is not concealed.
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Simple randomisation via ballot draw
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Single group
Other design features
Phase
Type of endpoint(s)
Efficacy
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)

Funding & Sponsors
Funding source category [1] 284500 0
Government body
Name [1] 284500 0
National Health and Medical Research Council
Address [1] 284500 0
National Health and Medical Research Council
GPO Box 1421
Canberra ACT 2601
Country [1] 284500 0
Australia
Funding source category [2] 284501 0
Charities/Societies/Foundations
Name [2] 284501 0
Heart Foundation New South Wales
Address [2] 284501 0
Heart Foundation New South Wales
Level 3, 80 William Street
East Sydney NSW 2011
Country [2] 284501 0
Australia
Primary sponsor type
University
Name
Cluster for Physical Activity and Health, Prevention Research Collaboration
Address
Cluster for Physical Activity and Health, Prevention Research Collaboration
Sydney School of Public Health
Level 2, Medical Foundation Building (K25)
University of Sydney NSW 2006

Street address:
Level 2 Medical Foundation Building
94 Parramatta Rd, Camperdown NSW 2050
Country
Australia
Secondary sponsor category [1] 283430 0
Charities/Societies/Foundations
Name [1] 283430 0
Heart Foundation New South Wales
Address [1] 283430 0
Heart Foundation New South Wales
Level 3, 80 William Street
East Sydney NSW 2011
Country [1] 283430 0
Australia

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 286482 0
University of Sydney Human Research Ethics Committee
Ethics committee address [1] 286482 0
Level 6, Jane Foss Russell Building - G02
The University of Sydney
NSW 2006 Australia
Ethics committee country [1] 286482 0
Australia
Date submitted for ethics approval [1] 286482 0
Approval date [1] 286482 0
23/08/2011
Ethics approval number [1] 286482 0
08-2011 / 14067

Summary
Brief summary
Sitting is recognised as a new risk factor for developing chronic illnesses that is independent of physical activity. Current knowledge is limited regarding effective strategies for reducing sitting in the workplace. This study will evaluate whether using sit-stand workstations in the office changes office workers’ sitting time at work and outside of work. Sit-stand workstations allow office staff to switch between sitting and standing while they are working at their desks. Participants (n=50) will trial the sit-stand workstations for 4 weeks and complete questionnaires about their sitting time before and during the trial. They will also wear activity monitors which will objectively measure their sitting time at each measurement time point. After the trial, participants will have a debrief session where they will give feedback about the sit-stand workstations.
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 33626 0
Address 33626 0
Country 33626 0
Phone 33626 0
Fax 33626 0
Email 33626 0
Contact person for public queries
Name 16873 0
Michelle Daley or Scott Dunn
Address 16873 0
Heart Foundation New South Wales
Level 3, 80 William Street
East Sydney NSW 2011
Country 16873 0
Australia
Phone 16873 0
+61 2 9219 2459 or +61 2 9219 2458
Fax 16873 0
Email 16873 0
Michelle.Daley@heartfoundation.org.au or
scott@actevate.com.au
Contact person for scientific queries
Name 7801 0
Hidde van der Ploeg or Josephine Chau
Address 7801 0
Cluster for Physical Activity and Health, Prevention Research Collaboration
Level 2 Medical Foundation Building K25
University of Sydney NSW 2006

Street address:
Level 2 Medical Foundation Building
94 Parramatta Rd, Camperdown NSW 2050
Country 7801 0
Australia
Phone 7801 0
+61 2 9036 3288 or +61 2 9036 3337
Fax 7801 0
Email 7801 0
hidde.vanderploeg@sydney.edu.au or josephine.chau@sydney.edu.au

No information has been provided regarding IPD availability
Summary results
No Results