ANZCTR - Registration

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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]

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

Condition category

Condition code

Public Health

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]

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]

Self-reported time spent sitting, standing, walking or doing physically demanding tasks at work. (Occupational Sitting and Physical Activity Questionnaire, OSPAQ)

Timepoint [1]

4 weeks pre-intervention (baseline)
2 weeks pre-intervention (pre-intervention)
2 weeks mid-intervention (intervention)

Primary outcome [2]

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]

4 weeks pre-intervention (baseline)
2 weeks pre-intervention (pre-intervention)
2 weeks mid-intervention (intervention)

Primary outcome [3]

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]

4 weeks pre-intervention (baseline)
2 weeks pre-intervention (pre-intervention)
2 weeks mid-intervention (intervention)

Secondary outcome [1]

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]

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

Sex

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

1/09/2011

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]

Government body

Name [1]

National Health and Medical Research Council

Address [1]

National Health and Medical Research Council
GPO Box 1421
Canberra ACT 2601

Country [1]

Australia

Funding source category [2]

Charities/Societies/Foundations

Name [2]

Heart Foundation New South Wales

Address [2]

Heart Foundation New South Wales
Level 3, 80 William Street
East Sydney NSW 2011

Country [2]

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]

Charities/Societies/Foundations

Name [1]

Heart Foundation New South Wales

Address [1]

Heart Foundation New South Wales
Level 3, 80 William Street
East Sydney NSW 2011

Country [1]

Australia

Ethics approval

Ethics application status

Approved

Ethics committee name [1]

University of Sydney Human Research Ethics Committee

Ethics committee address [1]

Level 6, Jane Foss Russell Building - G02
The University of Sydney
NSW 2006 Australia

Ethics committee country [1]

Australia

Date submitted for ethics approval [1]

Approval date [1]

23/08/2011

Ethics approval number [1]

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

Address

Country

Phone

Fax

Contact person for public queries

Name

Michelle Daley or Scott Dunn

Address

Heart Foundation New South Wales
Level 3, 80 William Street
East Sydney NSW 2011

Country

Australia

Phone

+61 2 9219 2459 or +61 2 9219 2458

Fax

Michelle.Daley@heartfoundation.org.au or
scott@actevate.com.au

Contact person for scientific queries

Name

Hidde van der Ploeg or Josephine Chau

Address

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

Australia

Phone

+61 2 9036 3288 or +61 2 9036 3337

Fax

hidde.vanderploeg@sydney.edu.au or josephine.chau@sydney.edu.au

No information has been provided regarding IPD availability

What supporting documents are/will be available?

No Supporting Document Provided

Results publications and other study-related documents

Documents added manually

No documents have been uploaded by study researchers.

Documents added automatically

Source	Title	Year of Publication	DOI
Embase	Validity and responsiveness of four measures of occupational sitting and standing.	2015	https://dx.doi.org/10.1186/s12966-015-0306-1

N.B. These documents automatically identified may not have been verified by the study sponsor.

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Documents added manually

Documents added automatically