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...Ergonomics in the workplace identifying and controlling manual handling hazards ohs information for employers supervisors workers this bulletin provides an overview of musculoskeletal injury msi associated with tasks on contributing factors required controls best practices it is part series that focus applying to meet alberta s occupational health safety requirements a common task includes lifting lowering pushing pulling carrying there are three primary can contribute during awkward or sustained postures repetition forceful exertions having one more these present increase worker risk msis also known as disorders repetitive strain injuries details refer hazard assessment employer responsibility assess heavy loads control them appropriately include equipment goods supplies persons animals before manually lifts lowers pushes pulls carries not specific safe weight limit because many handles transports load could injure impact how code requires perform considers help determining if object ...