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Cumulative trauma disorders (CTDs) are health disorders arising from repeated biomechanical stress to the hands, wrist, elbows, shoulders, neck, back
Musculoskeletal disorders (MSDs) affect soft tissue of the body in areas like the neck, back, shoulder, elbow, hand, wrist, and fingers. These include nerves, tendons, cartilage, ligaments, and muscles.
Force : the amount of physical effort required to maintain control of equipment or tools, or to perform a task such as heavy lifting, pushing, pulling, or carrying
Repetition : performing the same motion or series of motions continually or frequently for an extended period of time with little variation such as prolonged typing, assembling components, and repetitive hand tool usage
Awkward postures : refers to positions of the body that significantly deviate from the neutral position while performing job tasks such as working over-head, extended reaching, twisting, squatting, or kneeling
Static postures : refer to holding a fixed position or posture such as gripping tools that can’t be set down, standing in one place for prolonged periods
Contact stress : results from occasional, repeated, or continuous contact between sensitive body tissues and hard or sharp objects like resting the wrist on the edge of a desk, or tool handles pressing into the palms
UNITED STATES MARINE CORPS MARINE CORPS COMMUNITY SERVICES Certificate of Training This is to certify that HAS SATISFACTORILY COMPLETED Ergonomics Online Training at Camp Pendleton, California Date Type name here Employee ID # Type date here Type here