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A comparison of lumbar spine and muscle loading between male and female workers during box transfers
There is a clear relationship between lumbar spine loading and back musculoskeletal disorders in manual materials handling. The incidence of back disorders is greater in women than men, and for similar work demands females are functioning closer to their physiological limit. It is crucial to study loading on the spine musculoskeletal system with actual handlers, including females, to better understand the risk of back disorders. Extrapolation from biomechanical studies conducted on unexperienced subjects (mainly males) might not be applicable to actual female workers. For male workers, expertise...
The influence of job rotation and task order on muscle responses in females
Job rotation aims to reduce muscle fatigue by switching between functionally different tasks to theoretically lessen the risk of site-specific fatigue and work-related musculoskeletal disorders (WMSDs). The effectiveness of job rotation in mitigating the onset of muscle fatigue is partially known, but there is limited ergonomic data on female populations despite comparatively lower upper body strength and increased risk of WMSDs. Rotating between two functionally different tasks, continuing a single task, and varying task order were assessed in the present study for influence on muscle fatigue...
Occupational exposures and sick leave during pregnancy
Results from a Danish cohort study Objective: This study aimed to investigate associations between work postures, lifting at work, shift work, work hours, and job strain and the risk of sick leave during pregnancy from 10–29 completed pregnancy weeks in a large cohort of Danish pregnant women. Methods: Data from 51 874 pregnancies in the Danish National Birth Cohort collected between 1996–2002 were linked to the Danish Register for Evaluation of Marginalization. Exposure information was based on telephone interviews. Hazard ratios (HR) with 95% confidence intervals (95% CI) were calculated...
Occupational lifting during pregnancy and risk of fetal death in a large national cohort study
Objective The aim of the present study was to examine the association between occupational lifting and the risk of fetal death according to gestational age. Methods We used data from the Danish National Birth Cohort (1996–2002). Among 71 500 occupationally active women, 2886 experienced a fetal death. Information on lifting and relevant covariates was collected in interviews around week 16 of pregnancy. The majority of fetal losses (N=2032) happened before the scheduled interview, and exposure data were collected retrospectively from these women. We analyzed early miscarriage (≤12 weeks...
Les femmes manutentionnaires - Un point de vue biomécanique et ergonomique
Les manutentionnaires encourent des risques très élevés de blessures au dos. Afin de trouver des solutions à ce problème chronique, l’IRSST subventionne une programmation de recherche sur la manutention. Un premier projet issu de cette programmation a comparé les méthodes de travail des manutentionnaires experts et novices masculins et a dégagé des principes de manutention qui serviront de guide à l’élaboration d’un programme de formation. Le présent projet se penchera sur l’étude...
Qu'est-ce qui fait la pénibilité d'une posture contraignante ?
Une exploration à partir des données 2009-2010 du dispositif Evrest La pénibilité est entrée dans le débat social en tant qu’élément justifiant une éventuelle différenciation des conditions de départ en retraite. Les incapacités faisant suite à l’exposition à certaines contraintes seraient l’un des critères pris en compte pour justifier des départs plus précoces, mais aussi pour fonder une démarche de prévention. Source : http://evrest.istnf.fr/_admin...
Occupational lifting and pelvic pain during pregnancy
A study within the Danish National Birth Cohort Objectives : Pelvic pain during pregnancy is a common ailment, and the disease is a major cause of sickness absence during pregnancy. It is plausible that occupational lifting may be a risk factor of pelvic pain during pregnancy, but no previous studies have examined this specific exposure. The aim of this study was to examine the association between occupational lifting and pelvic pain during pregnancy. Methods : The study comprised 50 143 pregnant women, enrolled in the Danish National Birth Cohort in the period from 1996–2002. During pregnancy...

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