SAN FRANCISCO - The new California standard, Title 8 5110, is headed Repetitive Motion Injuries (RMIs). The National Institute for Occupational Safety and Health prefers Workplace Musculoskeletal Disorders (WMSDs). The same sorts of injuries (or, some say, illnesses) are sometimes called repetitive stress injuries (RSIs) or cumulative trauma disorders (CTDs). It's all very confusing.In its introduction to "Elements of Ergonomics Programs," NIOSH defined WMSDs as follows:+Disorders of the muscles,
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