Health Hazard Evaluation Report: HETA 99-0283-2855, Yellowstone National Park, Yellowstone National Park, Wyoming.

摘要

On July 6, 1999, the National Institute for Occupational Safety and Health (NIOSH) received a request from the Occupational Safety and Health Administration (OSHA) for assistance in conducting an ergonomic evaluation of National Park Service (NPS) personnel who ride snowmobiles at Yellowstone National Park (YNP). The NPS personnel, mainly rangers and maintenance workers, were experiencing musculoskeletal disorders of the hands, arms, shoulders, and back from riding the snowmobiles during the winter months at the park. On February 17, 2000 a NIOSH ergonomics specialist and a medical officer began an evaluation of the ergonomics aspects of snowmobiles and reported symptoms among personnel who routinely use them. A neurobehavioral psychologist administered hand coordination, tremor, and finger vibrotactile sensitivity tests to study participants. The study lasted until February 25, 2000, during which time 26 NPS personnel at the Park's West Entrance, Madison, Old Faithful, Grant, and Mammoth Hot Springs locations were evaluated. During February 23-26, 2000, two additional NIOSH investigators evaluated the vibration and shock accelerations among NPS personnel who used snowmobiles dispatched from the Mammoth Hot Springs, Madison, and Old Faithful locations of the park.