Comparisons of physical exposure between workers harvesting apples on mobile orchard platforms and ladders, part 2: Repetitive upper arm motions
| Autor: | Ornwipa Thamsuwan, Peter Johnson, Linda Ng Boyle, Randal P. Ching, Maria Tchong-French, Kevin J. McQuade, Lovenoor Aulck, Kit Galvin |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Upper Arms Cycles per minute Work Cumulative Trauma Disorders Computer science Physical Therapy Sports Therapy and Rehabilitation Human Factors and Ergonomics Accelerometer Upper Extremity Young Adult 03 medical and health sciences 0302 clinical medicine Occupational Exposure Accelerometry Humans 0501 psychology and cognitive sciences Safety Risk Reliability and Quality Engineering (miscellaneous) 050107 human factors Simulation Ability to work 05 social sciences Agriculture 030210 environmental & occupational health Agricultural Workers' Diseases Biomechanical Phenomena Malus Climbing Assessment methods Ergonomics |
| Zdroj: | Applied Ergonomics. 89:103192 |
| ISSN: | 0003-6870 |
| DOI: | 10.1016/j.apergo.2020.103192 |
| Popis: | Farmworkers are exposed to physical risk factors including repetitive motions. Existing ergonomic assessment methods are primarily laboratory-based and, thus, inappropriate for use in the field. This study presents an approach to characterize the repetitive motions of the upper arms based on direct measurement using accelerometers. Repetition rates were derived from upper arm inclination data and with video recordings in the field. This method was used to investigate whether harvesting with mobile platforms (teams harvesting apples from the platform and the ground) increased the farmworkers' exposure to upper arm repetitive motions compared to traditional harvesting using ladders. The ladder workers had higher repetitive motions (13.7 cycles per minute) compared to the platform and ground workers (11.7 and 12.2 cycles per minutes). The higher repetitions in the ladder workers were likely due to their ability to work independently and the additional arm movements associated with ladder climbing and walking. |
| Databáze: | OpenAIRE |
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