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Understand and prevent injuries. Repetitive motion and ergonomics. Objective. To become familiar with repetitive motion injuries and understand ways to help prevent them. Background. Cumulative trauma disorders (CTDs) Physical problem resulting from poor ergonomics
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Understand and prevent injuries Repetitive motion and ergonomics
Objective To become familiar with repetitive motion injuries and understand ways to help prevent them SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Background • Cumulative trauma disorders (CTDs) • Physical problem resulting from poor ergonomics • Sometimes called repetitive motion syndrome • Other causes include forceful exertion, vibration, and awkward positions or movements SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Risk factors Repetitive activities Forceful exertions Staying in the same position (sitting or standing) Awkward body postures Continued physical contact with surfaces Vibrations Awkward holds or positions of the hands SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Ergonomics • Poor ergonomics regarding muscles include: • Bending continually from the waist • Lifting from below the knees or above the shoulders • Twisting at the waist • Heavy lifting • Poor posture while sitting SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Repetitive motion • If you do the same hand and muscle movements over and over, you may suffer repetitive motion injuries such as carpal tunnel syndrome • Aching wrists • Numbness in fingers • Hand weakness • Pain extending up the arm SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Prevention Protect your hands and muscles from repetitive motion injury The best time to start is before symptoms begin SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Hands • Position hands correctly • Adjust work procedures to keep wrists and elbows straight • Use hand tools that are the right width, size, and shape for you and your hands SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Hands • Give your hands a break • Take breaks to allow hands to rest • Pause and shake out occasionally • Dangle down by your side to relieve tension • Do hand exercises that include wrists, fingers, palms, etc. • Pace yourself while working with your hands SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Hand exercises • Wrist rotation • Make a fist and rotate your entire hand from the wrist in one direction • Repeat 15 times • Change directions and repeat 15 more times • Do the same rotation with fingers extended SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Hand exercises • Hand stretch • Make a fist, and then extend your fingers as far apart as possible • Hold for 10 seconds • Relax • Repeat five to 10 times until hands feel relaxed SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Back • Lift with your legs, not your back • If possible, use material handling systems (forklifts, pallet jacks, etc.) • Team lift if object is too heavy • Don’t twist while lifting or moving objects • Sit and squat properly • No slouching SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Review Cumulative trauma disorders (CTDs) are sometimes called repetitive motion syndrome, but also can be caused by forceful exertion, vibration, and awkward positions or movements SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Review To prevent CTDs with your hands, position your hands correctly, use the right tools, take breaks, and do hand exercises To prevent CTDs with your back, use proper lifting techniques and correct posture SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.
Review Lifting techniques should be used while lifting all objects, regardless of weight SAFETY SCHOOL > Information provided by the Georgia Urban Ag Council and W.S. Pharr & Co.