Long-term effects of biomechanical exposure on severe knee pain in the Gazel cohort

Long-term effects of biomechanical exposure on severe shoulder pain in the Gazel cohort

“…No statistical difference in severe (or moderate) shoulder pain at baseline was observed between the follow-up and the drop-out groups, even though the lifetime prevalence of exposure to biomechanical factors was only slightly higher in the follow-up group (low magnitude of difference) (14). Selection effects at inclusion and attrition during the follow-up have been studied previously in the GAZEL cohort: the initial participation of men in the whole GAZEL cohort was mostly influenced by lifestyle characteristics such as alcohol consumption, being overweight and health or cultural factors, while dropping out was mostly explained by the occurrence of major health problems (16,17).…”

“…We chose "severe" pain or discomfort as the main outcome, defined by a threshold at the middle of the scale as recommended from guidelines on chronic pain (23). High intensity of pain and presence of disability are closely correlated, especially for patients with symptoms rating over the 50% threshold (14,23). Shoulder pain can result from different conditions, including rotator cuff syndrome, but we had no information on specific diagnoses.…”

“…The ARPEGE ancillary study was designed to analyze musculoskeletal disorders of the upper and lower limbs (14). In 1994-1995, a sample was selected among GAZEL participants, including all blue-collar and clerical workers, half of the managers, and one quarter of the supervisors.…”

Can a Single-Item Measure Assess Physical Load at Work? An Analysis From the GAZEL Cohort

“…Although the data on all 38 constraints were collected simultaneously, ARPEGE is treated as an index rather than a scale; indeed, published studies using ARPEGE data have used subsets of items to explore specific exposure-outcome relationships. 19 However, because many tasks inherently involve more than one domain of constraints (for example, painting while standing on a ladder), the domains are themselves correlated. Moreover, analysis of the relationship between PPS and each domain of physical load allows us to understand the types of physical work best captured by a single-item measure such as PPS.…”

Does Obesity Modify the Relationship between Exposure to Occupational Factors and Musculoskeletal Pain in Men? Results from the GAZEL Cohort Study

“…[2] – [4] Previous analyses have been performed on these joints with a particular focus on associations between long-term biomechanical exposure and incidence of severe pain; consistent associations have been found between repeated exposure to arm elevation or squatting in the workplace and severe shoulder and knee pain. [5] , [6] Self-reported symptoms of pain are the most common criterion used to assess the presence of MSDs. [1] Recommendations emphasize the use of instruments such as Nordic-style questionnaires, [7] especially with numeric scales of disability intensity and pain [8] .…”