2017-03-01 12:00 - Messages

Associations of objectively measured sitting and standing with low-back pain intensity

A 6-month follow-up of construction and healthcare workers
This study investigated associations between sitting and standing, respectively, and low-back pain with objectively measured exposures for several days and a prospective design. Sitting at work and during full-day is negatively associated with cross-sectional- and prospective low-back pain intensity. This association was seen for the healthcare sector, but not for the construction sector.

Source: Lunde, L. K., Koch, M., Knardahl, S., & Veiersted, K. B. (2017). Scandinavian Journal of Work, Environment & Health.

Guide aménagement d'un poste d'accueil

Ce guide de prévention vous aidera à concevoir un poste d’accueil sécuritaire et fonctionnel ou à corriger les déficiences d’un poste existant. Il propose une démarche d’aménagement d’un poste d’accueil en quatre étapes : l’analyse des besoins, 
l’élaboration d’un concept, l’élaboration des caractéris­tiques détaillées du poste et, finalement, la validation et le suivi.
À chacune des étapes, l’implication des personnes qui travailleront de près ou de loin au poste d’accueil est essentielle. Ces personnes pourront préciser la nature du travail qui y sera réalisé, exprimer leurs besoins et valider les choix retenus.

Source: http://asstsas.qc.ca/publication/guide-amenagement-dun-poste-daccueil-gp72

Neck posture during lifting and its effect on trunk muscle activation and lumbar spine posture

Neck and head posture have been found to have a significant influence on the posture of the lower spine region during lifting and both an extended/upward gaze and a flexed/downward gaze have been hypothesized to lead to increased pain and/or overuse of the neck musculature. As a result, strength training recommendations have turned to the use of a retracted neck posture as being the safer posture to assume during lifting. This study examined trunk and neck muscle activity and lumbar spine posture in seven participants while performing moderate load lifts using a retracted neck posture (chin drawn in posteriorly; recently gaining popularity among coaches, trainers, and physical therapists to reduce neck pain during lifting, and freestyle neck posture (no instructions given). The retracted neck resulted in less lumbar spine flexion and increased lumbar erector spinae, external oblique, and sternocleidomastoid activity. The retracted posture also resulted in decreased activity in the thoracic erector spinae and dorsal neck musculature. The increased trunk and sternocleidomastoid activity and decreased spine flexion observed in the seven participants of this study when lifting with a retracted neck may have the potential to help lower the risk of spine pain/injury.

Source: Hlavenka, T. M., Christner, V. F., & Gregory, D. E. (2017). Applied Ergonomics, 62, 28-33.

Total Worker Health® Concepts to Reduce the Health Risks from Sedentary Work

U.S. workplaces have become increasingly sedentary, with resulting negative health effects. Through its Total Worker Health® Program, the National Institute for Occupational Safety and Health (NIOSH) recommends an integrated approach to addressing sedentary work environments. An integrated approach is one that protects workers from work-related injury and illness and helps them advance their overall health and well-being, on and off the job. This document describes organizational practices that can reduce the risks associated with sedentary work.

Source: https://www.cdc.gov/niosh/docs/wp-solutions/2017-131/

Qualitative ergonomics/human factors research in health care

Current state and future directions
The objective of this systematic review was to understand the current state of Ergonomics/Human Factors (E/HF) qualitative research in health care and to draw implications for future efforts. This systematic review identified 98 qualitative research papers published between January 2005 and August 2015 in the seven journals endorsed by the International Ergonomics Association with an impact factor over 1.0. The majority of the studies were conducted in hospitals and outpatient clinics, were focused on the work of formal health care professionals, and were classified as cognitive or organizational ergonomics. Interviews, focus groups, and observations were the most prevalent forms of data collection. Triangulation and data archiving were the dominant approaches to ensuring rigor. Few studies employed a formal approach to qualitative inquiry. Significant opportunities remain to enhance the use of qualitative research to advance systems thinking within health care.

Source: Valdez, R. S., McGuire, K. M., & Rivera, A. J. (2017). Applied Ergonomics, 62, 43-71.

Implementing powered stretcher and load systems was a cost effective intervention to reduce the incidence rates of stretcher related injuries in a paramedic service

Paramedic services are considering moving towards the use of powered stretcher and load systems to reduce stretcher related injuries, but cost is perceived as a barrier. This study compared injury incidence rates, days lost, and compensation costs between Niagara Emergency Medical Service (NEMS) and Hamilton Paramedic Service (HPS) pre- (four years) and post- (one year) implementation of powered stretcher and load systems in NEMS. Prior to the intervention stretcher related musculoskeletal disorder (MSD) incidence rates averaged 20.0 (±6.8) and 17.9 (±6.4) per 100 full time equivalent (FTE), in NEMS and HPS respectively. One-year post intervention rates decreased to 4.3 per 100 FTE in NEMS, a 78% reduction. Rates modestly increased to 24.6 per 100 FTE in HPS in same period. Cost-benefit analysis estimated that the added cost to purchase powered stretcher and load systems would be recovered within their expected 7-year service life due to the reduction in compensation costs.

Source: Armstrong, D. P., Ferron, R., Taylor, C., McLeod, B., Fletcher, S., MacPhee, R. S., & Fischer, S. L. (2017). Applied Ergonomics, 62, 34-42.

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