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Occupational biomechanical risk factors for surgically treated ulnar nerve entrapment in a prospective study of male construction workers
Evidence was provided for forceful hand-grip work, with and without vibration, as a risk factor for ulnar nerve entrapment (UNE) surgery in a large cohort of Swedish construction workers. Several individual biomechanical factors comprising such work were associated with increased risk of UNE, including: increased grip force, upper extremity load, frequency of hand-held tool use, and hand arm vibration. Source: Jackson, J. A., Olsson, D., Punnett, L., Burdorf, A., Järvholm, B. et Wahlström, J. (2018). Scandinavian journal of work, environment & health . http://dx.doi.org/10.5271/sjweh...
Cumulative occupational mechanical exposures during working life and risk of sickness absence and disability pension
Prospective cohort study Using a biomechanical job exposure matrix combined with Danish registers, cumulative occupational mechanical exposures throughout life (ie, more years with heavy and frequent lifting, and kneeling work) predicted risk of long-term sickness absence among older workers. Importantly, heavy lifting throughout working life was associated with disability pension. Source: Sundstrup E, Hansen ÅM, Mortensen EL, Poulsen OM, Clausen T, Rugulies R, Møller A, Andersen LL. (2017). Scand J Work Environ Health . http://dx.doi.org/10.5271/sjweh.3663
Vibration and mechanical shock exposure strongly associated with prevalence of neck pain
The objective of this study was to determine whether whole-body vibration (WBV) and mechanical shock exposure from quad bike use are associated with the prevalence of neck and low back pain (LBP) in New Zealand farmers and rural workers. Physical exposures (mechanical shocks), employee status, and low levels of workplace satisfaction are all significantly associated with the 12-month prevalence of LBP in this rural workforce that regularly uses quad bikes. Both vibration and mechanical shock exposure were strongly associated with 12-month prevalence of neck pain. The 7-day prevalence of neck pain...
Vibrations, exiguïté, faible marge de manoeuvre
Comment améliorer le poste de conduite du métro de Montréal? Ce document est destiné aux intervenants en santé et en sécurité du travail, aux ergonomes, aux ingénieurs et à toute personne concernée par l'amélioration d'un poste de travail dans un contexte de faible marge de manoeuvre. Il décrit sommairement tant la démarche technique que la collaboration qui ont permis d'améliorer le poste de conduite du métro de Montréal dont le siège, l'espace restreint et les...
An Intervention for Overhead Drilling into Concrete
One of the most physically demanding tasks associated with musculoskeletal injuries (MSIs) in the construction industry is overhead work, particularly drilling into concrete ceilings in order to hang pipes, ducts, conduit, and wiring trays. This research project refined and tested an intervention device called an Inverted Drill Press (IDP) that is designed to reduce the shoulder force, awkward neck postures, dust exposure and risk of falling associated with overhead drilling. The IDP supports a hammer drill at the top of a ground-supported column that can be raised to the drilling site so the user...
Développement d’un prototype de siège pour opérateur de métro dans un contexte où l’espace est très restreint
Cette étude porte sur le développement d'un prototype de siège d'opérateur de métro permettant d'atténuer les vibrations et d'améliorer le confort, tout en convenant à l'espace très restreint de la loge de conduite. Le siège actuellement utilisé (strapontin) et conçu il y a une trentaine d'années, s'avère insatisfaisant : il est de confection rudimentaire et amplifie les vibrations. Cette étude fait suite à l'analyse ergonomique et vibratoire du poste d'opérateur...

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