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Pushing and pulling: An assessment tool for OHS practitioners
A tool has been developed for supporting practitioners when assessing manual pushing and pulling operations based on an initiative by two global companies in the manufacturing industry. The aim of the tool is to support occupational health and safety practitioners in risk assessment and risk management of pushing and pulling operations in the manufacturing and logistics industries. It is based on a nine-multiplier equation that includes a wide range of factors affecting an operator's health risk and capacity in pushing and pulling. These multipliers are based on psychophysical, physiological...
Une intervention ergonomique dans une entreprise utilisant des nanomatériaux
Cet article présente une intervention ergonomique dans une entreprise du secteur industriel amenée à fabriquer du papier contenant des nanoparticules. Les salariés du laboratoire de recherche et développement de l'entreprise, chargés d'étudier les caractéristiques du produit, ont refusé de le manipuler. À la demande du CHSCT de l'entreprise, l'INRS est intervenu afin de mieux comprendre les pratiques réelles de travail et d'aider à mettre en oeuvre, au cas par cas, une démarche de prévention...
Associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers
Cross sectional study BACKGROUND: Knowledge of factors associated with chronic pain is necessary for preventive strategies. The present study investigates biopsychosocial differences, with specific focus on rate of force development (RFD) and work ability, between workers with and without chronic upper limb pain. METHODS: Eighty-two male slaughterhouse workers, 49 with chronic upper limb pain and 33 pain-free controls participated in the study. Maximal muscle strength, RFD, and muscle activity was determined from fast and forceful maximal voluntary contractions for the shoulder and hand. Participants...
Wearable Exoskeletons to Reduce Physical Load at Work
Robotic-like suits which provide powered assist and increase human strength may conjure thoughts of sci-fi and superhero film genres. But these wearable exoskeleton devices are now a reality and the market for their applications in the workplace is projected to increase significantly in the next five years. As with any technologic innovation some of the pros and cons and barriers to adoption are not completely understood. In this blog our objectives are to: (1) describe wearable exoskeletons in the context of workplace safety and health control strategies; (2) highlight current and projected trends...
Quelle prévention des TMS dans l’activité de l’encadrement de proximité en sous-traitance interne?
Un cas dans le secteur de la découpe de viande Cet article vise à documenter, à partir d'un cas, comment un encadrant de proximité exerçant en sous-traitance interne dans le secteur de la découpe de viande peut participer à la conception d'une organisation du travail favorable à la prévention des TMS des opérateurs encadrés. Le recueil de données porte sur le travail de régulation de l'encadrant de proximité et ses déterminants. La méthodologie mobilise principalement des...
High Prevalence of Carpal Tunnel Syndrome among Poultry Workers
Musculoskeletal disorders (MSD) of the upper extremities among poultry processing employees are well documented (Lipscomb et al. 2008; Cartwright et al. 2012). The combination of highly repetitive tasks, forceful movements and working in cold temperatures can increase risk for MSDs such as carpal tunnel syndrome, a disabling medical condition affecting the hands and wrists. In 2014, the National Institute for Occupational Safety and Health (NIOSH) was asked to perform a Health Hazard Evaluation at a poultry processing plant in Maryland. Source: http://blogs.cdc.gov/niosh-science-blog/2015/04/06...
Conditions préalables à l’implantation de la rotation chez une population d’assembleurs-monteurs du secteur de l’aéronautique
L'impact des exigences de qualité sur le développement de la polyvalence et sur l'apprentissage Une grande entreprise du secteur de l'aéronautique désire développer la polyvalence de ses assembleurs-monteurs par l'instauration de la rotation de postes. Convenant qu'il s'agit d'une problématique complexe, l'expertise de l'Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST) est sollicitée. La demande formulée consiste à identifier les conditions...
Acute effect of topical menthol on chronic pain in slaughterhouse workers with carpal tunnel syndrome
Triple-blind, randomized placebo-controlled trial Topical menthol gels are classified "topical analgesics" and are claimed to relieve minor aches and pains of the musculoskeletal system. In this study we investigate the acute effect of topical menthol on carpal tunnel syndrome (CTS). We screened 645 slaughterhouse workers and recruited 10 participants with CTS and chronic pain of the arm/hand who were randomly distributed into two groups to receive topical menthol (Biofreeze) or placebo (gel with a menthol scent) during the working day and 48 hours later the other treatment (crossover...
Evaluation of Musculoskeletal Disorders and Traumatic Injuries Among Employees at a Poultry Processing Plant
The National Institute for Occupational Safety and Health (NIOSH) has issued the final report from its Health Hazard Evaluation at a South Carolina poultry processing plant. The plant requested the Health Hazard Evaluation. The final report makes recommendations to improve work conditions and minimize exposures to factors that increase the risk for musculoskeletal disorders and traumatic injuries. The recommendations address changes for reducing the amount of hand activity and force, changing work schedule and rotation patterns and policies, and improving work practices related to tool and equipment...
Moving food and drink
Manual handling solutions for the food and drink industries This book is aimed at employers and dutyholders within the food and drink industry. It discusses manual handling risks and solutions. Specifically, it covers: - the main causes of injuries - handling raw materials - production - packing into containers - stacking and moving containers - handling equipment - off-site delivery The introduction in this new edition has been revised but the case studies remain unchanged. Source: http://www.hse.gov.uk/pubns/books/hsg196.htm
Une approche diachronique des TMS
Usage de données quantitatives dans une grande entreprise Cet article se base sur la partie quantitative d'une recherche en ergonomie dont le but est de comprendre comment des évolutions du travail ont favorisé ou limité la survenue et la persistance de troubles musculo-squelettiques (TMS) chez des opérateurs d'un groupe industriel aéronautique, avec une approche diachronique des faits étudiés. Un observatoire, fondé sur le recueil systématique de données quantitatives auprès des opérateurs (dispositif...
A prospective study of musculoskeletal outcomes among manufacturing workers: I. Effects of physical risk factors
Objective: To better characterize associations between physical risk factors and upper-extremity musculoskeletal symptoms and disorders, a prospective epidemiologic study of 386 manufacturing workers was performed. Background : Methodological limitations of previous studies have resulted in inconsistent associations. Method: An individual, task-based exposure assessment strategy was used to assess upper-extremity exertion intensity, repetition, and time-in-posture categories. Participants recorded time spent performing daily work tasks on a preprinted log, which was then used to calculate time...
Innovative system for real-time ergonomic feedback in industrial manufacturing
"This work presents a system that permits a real-time ergonomic assessment of manual tasks in an industrial environment. First, a biomechanical model of the upper body has been developed by using inertial sensors placed at different locations on the upper body. Based on this model, a computerized RULA ergonomic assessment was implemented to permit a global risk assessment of musculoskeletal disorders in real-time. Furthermore, local scores were calculated per segment, e.g. the neck region, and gave information on the local risks for musculoskeletal disorders. Visual information was fed back...
Interventions pour la prévention des TMS - Mesure de l’exposition aux facteurs de risque et aspects économiques
Les troubles musculo-squelettiques (TMS) au dos et aux membres supérieurs constituent un problème majeur ayant des retombées au point de vue humain, social et économique. Ainsi, au cours des dernières années, plusieurs méthodes d'évaluation de l'exposition aux facteurs de risque (MÉEFR) de TMS ont été proposées par la communauté scientifique afin de soutenir les efforts de prévention. Toutefois, relativement peu d'information existe sur l'utilisation pratique de ces différentes...
Boulangerie industrielle : une recette sans TMS
Les troubles musculosquelettiques sont depuis plusieurs années un sujet de préoccupation pour Bridor qui fabrique des pains et viennoiseries surgelées. Trois ans de réflexion ont abouti au réaménagement du poste de laminage. Source : Auteurs : Courbon, Leslie. Travail et sécurité, no 738, 04/2013, p. 34-35. http://www.travail-et-securite.fr/
Validation of the ACGIH TLV for hand activity level in the OCTOPUS cohort: a two-year longitudinal study of carpal tunnel syndrome
Objectives This study aimed to evaluate the risk of musculoskeletal disorders to the hand-wrist system. The American Conference of Governmental Industrial Hygienists (ACGIH) proposed threshold limit values (TLV©) based on hand activity level (HAL) and normalized peak force (PF). We validated ACGIH TLV© in OCTOPUS, a large cohort study on carpal tunnel syndrome (CTS). Conclusions We found a dose–response relationship between ACGIH TLV© classification and risk of CTS. The increased risk observed for workers exposed between AL and TLV suggests that the current AL and TLV might...
An investigation into mechanical aids and automation for reducing the risks of repetitive handling tasks involving the upper limbs
The Health and Safety Executive (HSE) produced a document (INDG 398[1]) that provides practical advice on mechanical aids that reduce the risk of heavy manual handling. However, there is little information on the mechanisation and automation available to reduce upper limb disorder risks that can arise with repetitive handling (ie handling light loads at least every few seconds). HSE guidance 'Upper limb disorders in the workplace' suggests a hierarchical approach to risk reduction and asks 'can machinery do the highly repetitive functions and leave more varied jobs for the workers?'...
Work Organization and Musculoskeletal Health: Clinical Findings From Immigrant Latino Poultry Processing and Other Manual Workers
Objective: To determine the potential role of differential exposure to work organization hazards in musculoskeletal disorders among immigrant Latino workers. Method: Self-reported work organization data were obtained from immigrant Latino workers in poultry processing and nonpoultry, manual occupations (N = 742). Clinical evaluations for epicondylitis, rotator cuff syndrome, and back pain were obtained from a subsample (n = 518). Results: Several work organization hazards (eg, low job control, high psychological demands) were elevated among poultry processing workers. Job control predicted epicondylitis...
Validation of the ACGIH TLV for hand activity level in the OCTOPUS cohort: a two-year longitudinal study of carpal tunnel syndrome
This study aimed to evaluate the risk of musculoskeletal disorders to the hand-wrist system. The American Conference of Governmental Industrial Hygienists (ACGIH) proposed threshold limit values (TLV©) based on hand activity level (HAL) and normalized peak force (PF). We validated ACGIH TLV© in OCTOPUS, a large cohort study on carpal tunnel syndrome (CTS). Source: http://www.sjweh.fi/show_abstract.php?abstract_id=3312&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Sjweh-Online-firstArticles+%28SJWEH+-+Online-first+articles%29
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...
La formation visant la prise en charge globale des troubles musculo-squelettiques par l’entreprise : une étude exploratoire
Les approches traditionnelles de prévention des troubles musculo-squelettiques (TMS) au travail sont souvent classées en trois niveaux d’action : 1) la prévention primaire; 2) la prévention secondaire et 3) la prévention tertiaire. La prévention primaire vise généralement l’élimination ou le contrôle des risques à la source, agissant ainsi sur les causes plutôt que sur les conséquences des TMS (ex. : modification de l’aménagement pour éliminer une posture contraignante). La prévention...
Sustainable MSD prevention
Management for continuous improvement between prevention and production. Ergonomic intervention in two assembly line companies To increase output and meet customers' needs, companies have turned to the development of production management systems: Kaizen, one piece flow, Kanban, etc. The aim of such systems is to accelerate decisions, react to environmental issues and manage various productions. In the main, this type of management system has led to the continuous improvement of production performance. Consequently, such production management systems can have unexpected negative effects on...
Analyse des facteurs socioculturels et survenue des troubles musculosquelettiques
Le cas des couturières en Tunisie Le contexte actuel de mondialisation implique parfois des délocalisations et une internationalisation du travail qui conduisent quelquefois à des situations de travail défavorables pour la préservation de la santé des travailleurs. En effet, les transferts de technologies nécessitent une compréhension des déterminants contextuels pouvant influencer les situations de travail. Nous y retrouvons notamment les spécificités socioculturelles que nous avons traitées dans cette recherche...
Reducing MSD hazards in the workplace
A guide to successful participatory ergonomics programs In participatory ergonomics (PE) programs, workers, supervisors and other workplace parties jointly identify and address work-related hazards. PE can help reduce low-back injuries and other musculoskeletal disorders (MSDs), resulting in fewer workers’ compensation claims and lost days from work. This booklet, based on a systematic review by IWH researchers, outlines six key steps that have been shown to contribute to the success of a PE program. http://www.iwh.on.ca/pe-guide
Les équipementiers agissent
Les actes du séminaire "les équipementiers agissent : qualité du Travail et de l'emploi, quels leviers mobilisés par les entreprises ?" en ligne. L'ARACT Nord-Pas de Calais a co-organisé le 12 mars avec la Fédération des Industries Équipements pour Véhicules (FIEV) et 4 autres ARACT(s) un séminaire qui a mis l' accent sur des actions mises en par 9 entreprises du secteur dont 1 entreprise du Nord Pas de Calais. À cette occasion, la directrice de l'ARACT Dorothée METTA , a animé la...

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