SPECIAL FEATURE Mitigating Hand Tool Fatigue and Injury Through Ergonomics Any repetitive motion can lead to fatigue and injuries. Examples such as tennis elbow, carpal tunnel syndrome and " Tommy John " surgeries are proof. This is especially true for aviation maintenance technicians who work with fine tools for long periods. by Ian Weber 28 NOVEMBER/DECEMBER 2022 A ny repetitive motion can lead to fatigue and injuries. Examples such as tennis elbow, carpal tunnel syndrome and " Tommy John " surgeries are proof that recurrent movement takes a toll on the body. This is especially true for aviation maintenance technicians who work with fine tools for long periods of time. Persistent and precise movements can cause pain and fatigue, often leading to injury. These cumulative trauma injuries can result in missed work and work-related disability claims, as well as compromise worker safety. According to an overview from the Occupational Safety and Health Administration (OSHA), workrelated musculoskeletal disorders (MSDs), such as AIRCRAFT MAINTENANCE TECHNOLOGY