International journal of advanced smart convergence

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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A study on the Improvement of Electromyography of Agricultural Work Chairs for the Prevention of Musculoskeletal Disorders

  • June Hwan Kim (Department of Bio Industrial Machinery Engineering, Pusan National University) ;
  • Eun Suk Lee (Department of Life Industry Convergence Research Institute, Pusan National University) ;
  • Won Sik Choi (Department of Bio Industrial Machinery Engineering, Pusan National University)
  • Received : 2023.04.02
  • Accepted : 2023.04.11
  • Published : 2023.06.30
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Abstract

Squatting of agricultural work can cause musculoskeletal disorders due to excessive pressure and rotational force on the knee joint In order to improve the assistive chair used in squatting agricultural work so that it can be used in a narrow groove, it is intended to improve the musculoskeletal harm of squatting work by attaching a spring on the assistive chair. Therefore, in the presenty study, 3D drawing was done using ProEngineer (3D), and a mock-up was produced and tested. Using pro-Engineer, it was judged that it was rare for plastic to be broken by a spring, so the analysis was conducted with a focus on springs. It was found that the structure that can absorb the shock according to the rigidity of the tape spring and balance the body is that the power to withstand the load of the weight is distributed as a whole when five springs are used. Electromyography was measured using ME600 (Mega Electronics, Finland) Measuring equipment attached to the waist, thighs, calves, and shins. EMG values were measured and compared with the prototype in two ways, when the worker did not wear the product and when he wore an existing product on the market. As a result of the experiment when using the prototype, the maximum EMG value for each part is considered to be helpful in preventing musculoskeletal diseases as the amount of muscle used is reduced in the waist, thighs, calves, and shins.

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Acknowledgement

This work was supported by a Research Grant of Pusan National University (2023)

References

  1. Koh SB. "Development of prevention Strategy for Agricultural Safety and Health," Inje Agricultural Technology Center Inje, pp 1-50 (korea), 2006.
  2. Song DB. "Mass-screening of the work-related muscu-loskeletal disorders (CTDs) on upper extremities", Korea j Occup Health. Vol. 39, No.1, pp1-7, 2000.
  3. Holmber S, thelin A, stiernstrom EL, Svardsudd K. "The impact of physical work exposure on musculoskeletal symptoms among formers and rural non farmers". Ann Agric Environ Med 10; pp179-184, 2003.
  4. Malchsire J, Cock N, Vergracht S. Review of the factors associated with musculoskeletal problems in epidemiological studies. Int Arch Occup Environ Health.74: pp79-90, 2001 https://doi.org/10.1007/s004200000212
  5. Burt, S. Boiano, JH. Health Hazard Evaluation Report, HETA 88-361-2091. National Institute for Occupational Safety and Health, 1990.