Analysis on Biomechanical Differences Depending on Changes in Postures during Farm Work
| Autor: | Wan-Ki Hong, Chul-Gab Lee |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Farm work
Engineering medicine.medical_specialty business.industry 05 social sciences Work (physics) Sitting posture Osteoarthritis Knee Joint medicine.disease 03 medical and health sciences 0302 clinical medicine Lower body Physical medicine and rehabilitation medicine Physical therapy Squatting position 0501 psychology and cognitive sciences 030212 general & internal medicine business 050107 human factors Patellofemoral pain syndrome |
| Zdroj: | Journal of the Ergonomics Society of Korea. 35:307-317 |
| ISSN: | 1229-1684 |
| Popis: | Objective: This study looks into biomechanical variables occurring when one moves in a sitting posture, and presents objective references to make improvements in work environments of farm workers. Background: The farmers have more common musculoskeletal disorders compared to other professions, because they are much more exposed to biomechanical risk factors. The sitting posture that is the representative form of the squatted, can cause typical knee joint diseases, such as osteoarthritis or patellofemoral pain syndrome of the knee joint. Therefore, a quantitative study of knee load upon the movement in a squatting posture is required. Method: In order to proceed with its investigation, the study examined movements in a sitting posture with and without a lower body supporter through a threedimensional image analysis and by using Surface EMG. The study compared and analyzed the average muscle activity and the maximum muscle activity as well. Results: Every movement in a sitting posture is related to loads onto the knee joints and, when the farm workers move to sides, the study observed a high level of bowlegged moment. The study also noticed differences in muscle activity of medial gastrocnemius with and without the lower body supporter. Conclusion and Application: The study argues that what has been discussed so far is evidence to prove how the farm working environments should be improved in consideration of these movements observed when the farm workers move in a sitting posture. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|