Musculoskeletal disorders


Latest news


Latest publications
• Les risques de troubles musculo-squelettiques aux membres supérieurs dans le secteur des services à l'automobile - Étude exploratoire   (Risks of upper limb musculoskeletal disorders in the automobile services sector - Exploratory study)   Read
• Évaluation de la validité de construit de tests portant sur l'endurance et les réponses réflexes des muscles du dos chez des sujets présentant une lombalgie chronique - Programme REPAR - IRSST   (Evaluation of the construct validity of tests involving endurance and the back muscle reflex responses of subjects presenting chronic low back pain - REPAR Program - IRSST)   Read

 New projects
• Outils didactiques pour la prévention des TMS-MS dans le secteur des services automobiles  Read
 
• Intégration d'une culture de prévention durable des TMS dans une grande entreprise manufacturière : étape II Implantation d'actions de prévention  Read
 

 

Research leader: Marie St-Vincent
Coordinator: Denise Chicoine

  • Research projects
  • IRSST publications
  • Scientific publications and communications
  • Prévention au travail articles

Context
Lumbar strain, tendinitis, bursitis, carpal tunnel syndrome, back pain, epicondylitis… The term musculoskeletal disorders (MSDs) is used to designate several types of injuries or pains in the neck, back, and upper and lower limbs. These injuries affect tendons, muscles, ligaments, some nerves or other tissues around joints. MSDs are among the main causes of work-related physical disability; they comprise close to 38% of the occupational injuries compensated by the CSST and generate more than 40% of the compensation costs. Far beyond these numbers, MSDs produce major impacts at the human, social and financial levels, for example: the physical and psychological suffering of workers, a reduction in productivity, or a reduction in the quality of products and services. In fact, this vast and complex problem extends practically to all activity sectors.

Favored orientations
The IRSST, through its mission, intends to contribute through research to the prevention of industrial accidents and occupational diseases. As for MSDs, this means improving our understanding of the phenomenon and finding effective means of action for reducing the disorders produced in the workplace. To address an issue as complex as MSD prevention, the IRSST brings together researchers from many scientific disciplines such as biomechanics, ergonomics, epidemiology, occupational therapy, engineering, psychology, sociology, etc.

Research orientations

  • Study of the relationship between exposure to risk factors
    and the effects on workers’ health. 
    • Development and validation of methods for measuring exposure
      to risk factors;
    • Development and validation of methods for measuring the
      effects on workers’ health;
    • Study of the exposure-effect relationship by following up on
      interventions
  • Improvement of ergonomic intervention knowledge and
    practices: 
    • Modeling of the work activity;
    • Development, testing and evaluation of means of intervention;
    • Study of change processes in companies.
  • Studies and surveillance tools:
    • Use of investigation data;
    • Studies on the extent of MSDs and occupational exposures;
    • Development and validation of investigation methods

Research implementation
The IRSST’s research is carried out in a complementary way in companies and laboratories. Research in companies is conducted in direct cooperation with the social partners in order to establish study and intervention methodologies that respond to the problems raised. The IRSST’s researchers have a laboratory at the leading edge of technology at their disposal. They thus have access to various instruments such as: optoelectronic movement measurement system, stadiometer, dynamometer, and an electromyographic measurement system.

Our partners
Our work is done in collaboration with researchers from different countries. In biomechanics, there is ongoing collaboration with researchers from the Netherlands and Germany. Close contacts have been established with researchers from the Francophonie. In this way, relationships are being developed with researchers from the Agence Nationale pour l’Amélioration des Conditions de travail (ANACT), the Institut national de recherche et de sécurité (INRS, France), and the Institut national français de recherche médicale (INSERM).

Many studies are being carried out in close collaboration with researchers from Québec universities such as the École Polytechnique de Montréal, the Université Laval, the Université de Sherbrooke, the École de technologie supérieure, and the Université du Québec à Montréal. There has also been some collaboration at the national level, mainly with Ontario. In addition, a multidisciplinary project on vibration and MSDs in mine vehicles was begun in 2004, with the help of a joint grant from the IRSST and the Workplace Safety & Insurance Board (WSIB), in partnership with Laurentian University, Queen’s University, and the University of Western Ontario.

The IRSST has also begun a project, in partnership with Queen’s University, on postural stresses and pregnant women working at computers. 

Furthermore, no research would be possible without consultation with the companies involved and with occupational health and safety prevention associations. They in fact provide the sites for study and the necessary resources for data collection. Thanks to these companies, the research results can be applied and validated, and solutions provided for them.

Knowledge translation and outcomes
The research carried out in the MSD field is generating very concrete outcomes in workplaces, whether a better definition of the risks, a better understanding about their means of regulation, or the development of new ways of dealing with them.

From this perspective, the aim of the research is to expand knowledge and increase the pool of specialized researchers in this field. The results of the studies are widely published in research reports, theses and scientific journals. They are also disseminated at major scientific events.

Companies and occupational health and safety professionals also benefit, depending on the case, from guides or technical fact sheets resulting from this research and prepared for them.

Besides its research activities, the IRSST is carrying out certain short case studies, thus maintaining a direct link with workplaces. Companies appreciate this contribution to fields where specialized resources are sometimes rare.
 

 

 
 

Preventing MSDs

 
Handling
To prevent musculoskeletal disorders, which every year result in significant human and financial costs in the poultry industry, the IRSST has developed prevention tools adapted to the needs of an industry in which productivity is a synonym for survival. Based on a participatory ergonomic approach, the researchers' strategy resulted in the production of videos accompanied by information manuals. These prevention tools are the result of 10 years of research in the poultry industry. They were designed to meet this sector's specific needs.
 
Emergency call centres
Now that the musculoskeletal and psychological health symptoms of workers in call centres have been described, an important ergonomic study is being conducted to describe the stresses and to better understand the work of telecommunications dispatchers. Action is also being taken regarding physical and mental loads. The objective is to develop avenues of intervention, implement them, and evaluate them.
 
The integration of OHS into continuous improvement approaches through ergonomics
An initial study was focused on the conditions that allow ergonomics to be integrated into the Kaizen approaches. The result was two major projects whose purpose is to delve more deeply into ways of integrating health and safety into approaches to continuous improvement. In the context of these projects, different tools for identifying risk factors are characterized and compared. The cost-benefit dimension of preventive approaches is also being studied.
 
A collective work on ergonomic intervention
The aim of a major project is the production of a collective work on ergonomic intervention. This is the opportunity to convey, in an international forum, the knowledge developed by ergonomists and practitioners in Québec regarding ergonomic intervention.
 
 
 

© IRSST 2010 - Contact - Terms and conditions