Condition category
Not Applicable
Date applied
23/07/2013
Date assigned
30/07/2013
Last edited
09/10/2015
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Background and study aims
More than seven out of ten Dutch construction workers describe their work as physically demanding. This can be reduced when ergonomic measures that provide maximum comfort are used. To help construction companies with the introduction of ergonomic measures, participatory ergonomic (PE) intervention can be used. We will look at how well two guidance strategies for a PE intervention work in terms of increase in the use of ergonomic measures, work ability and physical functioning and a decrease in limitations due to physical problems.

Who can participate?
This study will recruit 12 small and medium enterprises within the Dutch construction industry. These construction companies must be employing a physically demanding occupation and must have a potential to improve the use of ergonomic measures.

What does the study involve?
Construction companies will be guided by a trained ergonomics consultant through a six-step PE intervention to introduce ergonomic measures to their employees. This guidance will be given through two strategies: either four face-to-face meetings or 13 emails. A protocol for both guidance strategies is made by two ergonomics consultants. The duration of both guidance strategies is six months. The construction companies will be randomly allocated to one of the guidance strategies. At the end of the study, we will compare how well the strategies worked to improve the use of ergonomic measures. A cost-benefit analysis will be performed.

What are the possible benefits and risks of participating?
Possible benefits for the participating construction companies are decreasing physical work demands of their employees and possible work-related disorders. If the protocol of one or both guidance strategies is successful, the protocol can be introduced to occupational health services in the Netherlands to help other construction companies with the introduction of ergonomic measures. There are no (financial) risks for the participating construction companies and their employees. The guidance of the ergonomics consultants is of no cost for the participating construction companies and they are free in the choice of the ergonomic measure they want to introduce.

Where is the study run from?
This study has been set up by the Coronel Institute of Occupation Health, Academic Medical Center, University of Amsterdam, Netherlands.

When is the study starting and how long is it expected to run for?
Originally, the recruitment started in spring 2012. However, the recruitment of construction companies has been prolonged to July 2013. The study will end in December 2013.

Who is funding the study?
The funding has been provided by ZonMw (The Netherlands Organisation for Health Research and Development).

Who is the main contact?
1. Henk F. van der Molen, PhD
h.f.vandermolen@amc.uva.nl
2. Steven Visser, MSc
steven.visser@amc.uva.nl

Trial website

Contact information

Type

Scientific

Primary contact

Prof M.H.W. Frings-Dresen

ORCID ID

Contact details

Coronel Institute of Occupational Health
Academic Medical Center
University of Amsterdam
P.O. Box 22660
Amsterdam
1100 DD
Netherlands
-
m.frings@amc.uva.nl

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

50-51400-98-100

Study information

Scientific title

Two guidance strategies for a participatory ergonomic intervention to increase the use of ergonomic measures of construction workers

Acronym

Study hypothesis

Participatory ergonomics (PE) intervention can be used to facilitate behavioural changes. It is hypothesised that a face-to-face guidance of a PE intervention will increase the use of ergonomic measures, work ability, physical functioning and decrease limitations due to physical problems more compared to an e-guidance strategy.

The null hypothesis is that there is no difference in the outcome measures (use of ergonomic measures, work ability, physical functioning and limitations due to physical problems) between the two guidance strategies.

Ethics approval

N/A

Study design

Six-months randomised pre-post parallel intervention study

Primary study design

Interventional

Secondary study design

Randomised controlled trial

Trial setting

Other

Trial type

Quality of life

Patient information sheet

Not available in web format, please use the contact details below to request a participant information sheet

Condition

Use of ergonomic measures

Intervention

The intervention consists of a six-step participatory ergonomics intervention which is guided by trained ergonomics consultants. The guidance of this intervention consists of four face-to-face meetings or by 13 email contacts.

A protocol is made for both guidance strategies.

The duration of the intervention is six months. Measurements will be done at baseline and after the six months.

Intervention type

Other

Phase

Not Applicable

Drug names

Primary outcome measures

The use of ergonomic measures by individual employees of the construction companies at the start of the study and after six months.

Secondary outcome measures

1. Work ability of individual employees of the construction companies at the start of the study and after six months using the work ability index (WAI)
2. Physical functioning of the RAND-36 health survey of individual employees at the start of the study and after six months
3. Limitations due to physical problems of the RAND-36 health survey of individual employees at the start of the study and after six months

Overall trial start date

01/09/2012

Overall trial end date

31/12/2013

Reason abandoned

Eligibility

Participant inclusion criteria

Construction companies with:
1. Less than 50 employees (small and medium enterprises within the Dutch construction industry
2. Employing a physically demanding occupation
3. Having the potential to improve the use of ergonomic measures among their workers to reduce work demands/risks for work-related musculoskeletal disorders

Participant type

Patient

Age group

Adult

Gender

Both

Target number of participants

12 construction companies with on average 25 employees.

Participant exclusion criteria

Does not meet inclusion criteria

Recruitment start date

01/09/2012

Recruitment end date

01/07/2013

Locations

Countries of recruitment

Netherlands

Trial participating centre

Coronel Institute of Occupational Health
Amsterdam
1100 DD
Netherlands

Sponsor information

Organisation

University of Amsterdam (Netherlands)

Sponsor details

Academic Medical Center
Coronel Institute of Occupational Health
P.O. Box 22660
Amsterdam
1100 DD
Netherlands

Sponsor type

University/education

Website

http://www.amc.nl/web/Research/Departments/Overview/Coronel-Institute-of-Occupational-Health/Coronel-Institute-of-Occupational-Health/Department.htm

Organisation

Arbouw

Sponsor details

P.O.Box 213
Harderwijk
3840
Netherlands
+31 341 466 200
info@arbouw.nl

Sponsor type

Industry

Website

Funders

Funder type

Research organisation

Funder name

Netherlands Organisation for Health Research and Development

Alternative name(s)

Netherlands Organisation for Health Research and Development

Funding Body Type

private sector organisation

Funding Body Subtype

other non-profit

Location

Netherlands

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

2014 protocol in: http://www.ncbi.nlm.nih.gov/pubmed/24742300

Publication citations

  1. Protocol

    Visser S, van der Molen HF, Sluiter JK, Frings-Dresen MH, Guidance strategies for a participatory ergonomic intervention to increase the use of ergonomic measures of workers in construction companies: a study design of a randomised trial., BMC Musculoskelet Disord, 2014, 15, 132, doi: 10.1186/1471-2474-15-132.

Additional files

Editorial Notes