2012-01-01 12:00 - Messages

L'engouement pour les tablettes pourrait créer une épidémie de torticolis

L'engouement pour les tablettes numériques tactiles risque de rapidement se traduire par une recrudescence de torticolis et autres douleurs musculaires provoquées par une mauvaise posture, avertit une étude, qui déconseille vivement d'utiliser ces gadgets posés sur les genoux. Les tablettes numériques ont beau être légères et maniables, «leur utilisation est fortement associée à des postures de flexion de la tête et du cou» par comparaison avec les ordinateurs de bureau classiques. Elles suscitent donc «de réelles inquiétudes sur le développement de douleurs du cou et des épaules», souligne Jack Dennerlein, chirurgien orthopédique et spécialiste en santé publique à Harvard qui a dirigé cette étude.


Source : Young, J.G.; Trudeau, M.; Odell, D.; K. Marinelli et J. T. Dennerlein. Touch-screen tablet user configurations and case-supported tilt affect head and neck flexion angles. Work , 41 (2012) p. 81–91. DOI 10.3233/WOR-2012-1337.
http://iospress.metapress.com/content/x668002xv6211041/fulltext.pdf

New DASH manual improves use of tool measuring upper limb function

January 24, 2012 (Toronto, Ontario)—An updated guide for health-care professionals and researchers on how to use the DASH (Disabilities of the Arm, Shoulder and Hand) Outcome Measure is now available from the Institute for Work & Health (IWH).

The DASH Outcome Measure is a 30-item, self-report questionnaire that measures the symptoms and functioning of patients with musculoskeletal disorders of the hands, wrists, elbows and shoulders. The tool gives clinicians and researchers a single, reliable instrument to assess any or all joints in the upper extremity. A shorter, 11-item version called the QuickDASH is also available.

Source : http://www.iwh.on.ca/media/2012-jan-24

Ergonomic and Safety Climate Evaluation at a Brewery

HHE Program investigators evaluated concerns about musculoskeletal disorders on the can line and in the bottle depalletization areas at a brewery. Investigators determined that employees were at an increased risk for upper extremity work-related musculoskeletal disorders due to awkward postures, forceful exertions, and repetitive motions. Some employees reported that they felt uncomfortable reporting safety incidents or expressing their safety concerns. Investigators recommended that work areas be designed to have a working height between 27-62 inches and add rotating platforms to the height-adjustable lifts. Investigators also recommended employees be encouraged to report complaints and concerns.


Source : http://www.cdc.gov/niosh/hhe/reports/pdfs/2010-0008-3148.pdf

Standing, kneeling and squatting at work – health-based limit values

In the present report, at the request of the Minister of Social Affairs and Employment, the Health Council of the Netherlands has investigated whether at the present time there are any new scientific insights concerning health-based or safety-based limit values for work performed while standing, kneeling or squatting.
This report is one of a series of advisory reports in which the Committee on the Identification of Workplace Risks examining occupational risks covered by the Dutch Working Conditions Act and its associated regulations. To answer the Minister’s questions, the Committee studied the scientific data on adverse health effects of working in standing, kneeling or squatting position, and considered the results of longitudinal studies to be particularly important, as they involve the least likelihood of bias.
On the basis of the available scientific data, the Committee concluded that it is not possible to indicate a safe level below which no adverse health effects would be expected for people who work in standing, kneeling or squatting position. However, it was possible to obtain information on the extent of the risks of lower-back complaints arising from either working in standing position or working in squatting position.

Source :
http://www.gezondheidsraad.nl/sites/default/files/summary%20201141.pdf

The 11-item workplace organizational policies and practices questionnaire (OPP-11): examination of its construct validity, factor structure, and predictive validity in injured workers with upper-limb disorders

Background Reliable and valid measurement of workplace organizational policies and practices (OPPs) is needed to evaluate their influences on the prevention and management of occupational injuries. Methods Injured workers (n = 614) attending an upper-limb specialty clinic operated by the Workplace Safety & Insurance Board of Ontario were recruited for a 1-year study. The OPP-11, completed at baseline, was examined for scaling properties (floor/ceiling effects, internal consistency, and item-convergent/discriminant validity), construct validity, and factor structure. Predictive validity for longitudinal work disability was examined using multivariable logistic regressions. Results Strong scaling properties were observed for the OPP-11. High internal consistency (Cronbach's alpha = 0.80-0.90) and expected associations with comparator constructs were evident. A 4-domain structure (fit statistics: CFI = 0.98, TLI = 0.97, and RMSEA = 0.06) was supported. Higher OPP-11 predicted more favorable 12-month work disability outcomes, after adjusting for demographic and health attributes. Conclusions The OPP-11 is valid for use in upper-limb disorders. Expanding the ergonomic practices domain could be considered. 

Source : Tang K, MacDermid JC, Amick BC, Beaton DE .  American Journal of Industrial Medicine, Vol. 54, issue 11,   834 – 846. 10.1002/ajim.20994

http://www.iwh.on.ca/biblio/the-11-item-workplace-organizational-policies-and-practices-questionnaire-opp-11-examination

Étude pour intervenir sur la réduction des troubles musculo-squelettiques et de santé psychologique dans les centres d’appels d’urgence 911 de la sécurité publique municipale

Une recherche multidisciplinaire a permis de mieux cerner les dimensions de la charge mentale en lien avec les TMS et les problèmes de santé psychologique des préposés des centres d’appels d’urgence 9-1-1, profession qui a été jusqu’à maintenant peu étudiée par les chercheurs. L’étude démontre que leur travail est loin d’être celui « d’un simple répartiteur d’appels » puisqu’ils doivent faire face avec efficacité à la gestion du flux d’appels, à la complexité de leur traitement, aux problèmes relationnels avec les appelants et à la gestion des situations dramatiques. Pour mieux prévenir les lésions professionnelles, un soutien individuel et collectif pris en charge par l’employeur doit être élaboré à partir des expériences acquises par les préposés eux-mêmes. Il concerne le partage de connaissances sur le traitement d’appels complexes et émotionnellement exigeants, l’entraînement aux situations d’urgence majeures, les relations avec les premiers intervenants et la mise sur pied d’un soutien psychologique après un événement traumatique. De plus, l’étude recommande de mieux faire connaître et de rendre visible la réalité de ces « gardiens de l’ombre qui veillent au bout du fil ».

Source : http://www.irsst.qc.ca/media/documents/PubIRSST/R-720.pdf

 

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