Effectiveness of a participatory approach on the use of four ergonomic measures reducing musculoskeletal disorders among construction workers compared with no intervention

ISRCTN	ISRCTN84454743
DOI	https://doi.org/10.1186/ISRCTN84454743
Protocol serial number	NTR330
Sponsor	Academic Medical Centre (AMC) (The Netherlands)
Funders	WERKGOED (Bouwend Nederland, FNV Bouw, Hout- en Bouw bond CNV, Ministerie van Sociale Zaken en Werkgelegenheid) (The Netherlands), Arbouw (The Netherlands)

Submission date: 20/12/2005
Registration date: 20/12/2005
Last edited: 20/10/2008

Recruitment status: No longer recruiting
Overall study status: Completed
Condition category: Injury, Occupational Diseases, Poisoning

Prospectively registered

Protocol

Statistical analysis plan

Results

Individual participant data

Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr H F van der Molen
Scientific

Academic Medical Centre (AMC)
Coronel Institute for Occupational and Environmental Health
P.O. Box 26600
Meibergdreef 9
Amsterdam
1100 DD
Netherlands

Study information

Primary study design	Interventional
Study design	Cluster randomised controlled trial
Secondary study design	Randomised controlled trial
Scientific title
Study objectives	It has been hypothesised that, because participatory ergonomics (PE) implementation strategies intervene at all phases of behavioural change for the various stakeholders, they may be successful in increasing the use of ergonomic measures at worksites. A PE implementation strategy is defined as the involvement of people in planning and controlling a significant amount of their own work activities with sufficient knowledge and power to influence processes and outcomes to achieve desirable goals.
Ethics approval(s)	Not provided at time of registration
Health condition(s) or problem(s) studied	Work-related disorders, musculoskeletal disorders (MSDs)
Intervention	1. A six-step participatory approach aimed at behavioural change among employers and employees within companies guided by an experienced ergonomics consultant during 6 months. Employers, work planners, foremen and representatives of bricklayers and bricklayers assistants structured and organised the approach and process through a steering group within each company. 2. No intervention
Intervention type	Other
Primary outcome measure(s)	Use of ergonomic measures (doing), assessed by means of worksite observations and questionnaires at baseline and after six months.
Key secondary outcome measure(s)	Behavioural change phases among employers (awareness, accessibility, understanding, wanting, intention and ability) and behavioural change phases among employees (awareness, wanting and ability). The behavioural change phases of the workers and the employers were determined by questionnaires and interviews respectively. Performance indicators for the PE implementation strategy were assessed through observations by researchers during the implementation process and through questionnaires completed by workers.
Completion date	01/01/2005

Eligibility

Participant type(s)	Patient
Age group	Adult
Sex	All
Target sample size at registration	118
Key inclusion criteria	Almost no use (less than 10% of the working time) of one ergonomic measure (adjusting the height of bricklaying materials).
Key exclusion criteria	None (employers and employees were the participants).
Date of first enrolment	01/01/2003
Date of final enrolment	01/01/2005

Locations

Countries of recruitment

Netherlands

Study participating centre

Academic Medical Centre (AMC)

Amsterdam
1100 DD
Netherlands

Results and Publications

Individual participant data (IPD) Intention to share	No
IPD sharing plan summary	Not provided at time of registration
IPD sharing plan