Condition category
Musculoskeletal Diseases
Date applied
13/11/2013
Date assigned
09/12/2013
Last edited
09/12/2013
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Background and study aims
Adjustable workstations offer a potential strategy to decrease prolonged sitting time and break long inactivity in sedentary work. The purpose of this study was to examine the effects of sit-stand workstations on occupational sedentary time, health outcomes and work ability, and their usability in visual display unit (VDU) work.

Who can participate?
Employees of the Faculty of Sport and Health Sciences, University of Jyväskylä, Finland. In September 2012 part of the faculty personnel moved to a renovated building which was furnished with electrically adjustable workstations. Prior to this move, they worked in similarly furnished offices as the faculty members who continued to work in the original buildings, which were equipped with traditional sitting VDU workstations.

What does the study involve?
All faculty employees (n=170) were invited to fill out a questionnaire between August-September 2012 and again in February 2013. Individuals who moved to the renovated building comprised the intervention group (n=23). They used electrically adjustable workstations (ISKU, Finland) during the 6 month intervention period. No other instructions or counseling were given. Faculty personnel who worked in other buildings formed the control group (n=20) and used their original workstations throughout the study.

What are the possible benefits and risks of participating?
Adjustable workstations offer a potential strategy to reduce prolonged sitting in sedentary
work.
There is a risk that recruiting enough subjects is difficult, but we have made the study simple which makes participation more attractive. Further, to find workplaces that have or are in the process of purchasing electrically adjustable workstations we will approach both workplaces and manufacturers in order to obtain enough subjects for the intervention study.

Where is the study run from?
This study was carried out at the Faculty of Sport and Health Sciences, University of Jyväskylä, Finland

When is the study starting and how long is it expected to run for?
August 2012 to February 2013

Who is funding the study?
University of Jyväskylä (Finland). PhD student is supported by China Scholarship Council (CSC).

Who is the main contact?
Prof. Taija Juutinen Finni
taija.finni@jyu.fi

Trial website

Contact information

Type

Scientific

Primary contact

Prof Taija Juutinen Finni

ORCID ID

Contact details

PO Box 35
Jyväskylä
40014
Finland

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

N/A

Study information

Scientific title

Can an adjustable workstation reduce occupational sedentary time: a controlled intervention study

Acronym

Study hypothesis

1. It is hypothesized that the intervention-induced changes will be positively associated with reduced occupational sedentary time in a real workplace.
2. The sit-stand workstations offer the possibility to improve health indexes and improve work ability.
3. There is a high usability of the sit-stand workstations in visual display unit (VDU) work.

Ethics approval

Ethics Committee of University of Jyväskylä, 19/10/2012

Study design

Controlled intervention with one intervention group and one control group

Primary study design

Interventional

Secondary study design

Non randomised controlled trial

Trial setting

Other

Trial type

Quality of life

Patient information sheet

Not available in web format, please use the contact details provided in the Interventions field to request a patient information sheet

Condition

Ergonomics interventions on sedentary work

Intervention

1. Intervention group: all faculty employees who moved to the renovated building comprised the intervention group. The intervention group used electrically adjustable workstations during the 6-month intervention period. They were given brief verbal instructions on how to operate the workstation without other instructions or counseling.
2. Control group: faculty personnel who worked in other buildings formed the control group and used their original workstations throughout the study.

Intervention type

Other

Phase

Not Applicable

Drug names

Primary outcome measures

Occupational sedentary time in VDU work: values correspond to the percentage of work time spent sitting and standing, the percentage of computer work time spent sitting and standing, and average leisure sitting time. Measured at baseline and at 6 months.

Secondary outcome measures

Measured at baseline and at 6 months:
1. Health and work-related outcomes: mean perceived musculoskeletal comfort for different body parts and mean perceived work ability
2. In the intervention group, self-reported usability of the sit-stand workstation including adjustability, satisfaction and usage level of sit-stand function

Overall trial start date

01/08/2012

Overall trial end date

28/02/2013

Reason abandoned

Eligibility

Participant inclusion criteria

1. All faculty employees (researchers, teachers, administrative workers, assistants, professors and technical workers)
2. Ambulatory
3. Non-pregnant
4. ≥0.8 full-time equivalent

Participant type

Patient

Age group

Adult

Gender

Both

Target number of participants

170 faculty employees

Participant exclusion criteria

1. Self-reported chronic, long-term musculoskeletal disease or progressive neurological disease
2. Diagnosed cardiovascular or metabolic disease with regular medication

Recruitment start date

01/08/2012

Recruitment end date

28/02/2013

Locations

Countries of recruitment

Finland

Trial participating centre

PO Box 35
Jyväskylä
40014
Finland

Sponsor information

Organisation

University of Jyväskylä (Finland)

Sponsor details

Neuromuscular Research Center
Department of Biology of Physical Activity
PO Box 35
Jyväskylä
40014
Finland

Sponsor type

University/education

Website

https://www.jyu.fi/en

Funders

Funder type

University/education

Funder name

China Scholarship Council (China) (No. 201206320092)

Alternative name(s)

CSC

Funding Body Type

government organisation

Funding Body Subtype

Federal/National Government

Location

China

Funder name

University of Jyväskylä (Finland) was responsible for expenses of the environmental intervention

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes