Journal of the Korean Society of Physical Medicine (대한물리의학회지)

The Korean Society of Physical Medicine (대한물리의학회)
권호 표지
DOI QR코드

DOI QR Code

Characteristics of Muscle Strength and Posture among Automobile Parts Manufacturing Workers and the Necessity of the Musculoskeletal Injury Prevention Program

근골격계질환 예방프로그램의 필요성과 자동차 부품 제조업 근로자들의 근력과 자세의 특성 연구

  • Kwon, Il-Ho (Department of Physical Therapy, Graduate School of Daejeon University) ;
  • Shin, Won-Seob (Department of Physical Therapy, College of Health and Medical Science, Daejeon University)
  • 권일호 (대전대학교 물리치료학과 대학원) ;
  • 신원섭 (대전대학교 물리치료학과)
  • Received : 2019.10.04
  • Accepted : 2019.10.24
  • Published : 2019.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

PURPOSE: This study examined the necessity of a musculoskeletal injury-prevention program for automobile parts manufacturing workers by assessing the body composition, muscle strength, and posture according to sex and age. METHODS: Two hundred eighty-two workers (men, 218; women, 64; mean age, 38.97 years; and mean work tenure, 10.29 years) participated in this study. They completed a questionnaire on their general characteristics, excluding personal identification codes. The participants were evaluated for body composition, muscle strength, and posture using InBody, a hand dynamometer, and the Image J program through photography, respectively. An independent t-test and one-way analysis of the variance were used for the comparisons according to sex and age, respectively. RESULTS: Significant sex-related differences in muscle strength and grip force were observed (p<.05). In addition, the left-side pelvic inclination was significantly higher in the female participants than in the male participants (p<.05). Significant age-related differences in the skeletal muscle mass and muscle strength were observed around 40 years (p<.05). Significant correlations were observed among the body composition (skeletal muscle and body fat masses), muscle strength, and posture (pelvic inclination; p<.01). CONCLUSION: Significant differences in pelvic inclination by sex and muscle strength by age were found, even in healthy workers. Additional posture and muscle strength measurements will be needed for workers who participate in the musculoskeletal injury prevention program because they are exposed to an incorrect posture for many hours or in many repetitive tasks.

Keywords

References

  1. Yoon HY, Song MJ. An Analysis of Musculoskeletal Disease in Korea and the United States at Industrial sites. J Ergon Soc Korea. 2006;10:468-72.
  2. Lee KH, Yoon JH, Kim SK, et al. The Relationship of Physical and Psychosocial Risk Factors to Work-related Musculoskeletal Upper Extremity Symptoms amongst Male Automobile Manufacturing Workers. Korean J Occup Environ Med. 2012;24(1):72-85. https://doi.org/10.35371/kjoem.2012.24.1.72
  3. Shin ES, Kim YC. An analysis of Functional Movement of Motor Company Workers. Korean Operations Research And Management Society. 2015;4:2783-8.
  4. Lim JH, Lee JO. The Relationship between Body Composition Change and Muscle Strength and Endurance Depending on Aging at the Senescence. Journal of the Korea Gerontological Society. 2001;21(2):15-24.
  5. Seo DK, Lee SW. The Age Related Changes of Thickness and Symmetry of Deep Trunk Muscles. J Korean Soc Phys Med. 2013;8(3):379-85. https://doi.org/10.13066/kspm.2013.8.3.379
  6. Park SS, Lee KJ. Effects of Participation in Pilates and Dance Sports Exercise on Body Composition, Muscular Strength, Flexibility of University Students Group. Journal of Korean Physical Education Association for Girls and Women. 2009;23(1):49-58.
  7. So WY, Song MS, Cho BL, et al. The Effect of Elastic Band Exercise Training and Detraining on Body Composition and Fitness in the Elderly. Journal of the Korea Gerontological Society. 2009;29(4):1247-59.
  8. Lee CH, Oh HS, Jung YA, et al. A Study of Fitness, Blood pressure and Body Fat Changes on Aging. The Korean Journal of Physical Education. 2003;42(5):717-25.
  9. Park JS, Park SY. Effects of Isokinetic Strength and Foot-Pressure with and without to Injury of Knee Joint. The Korean Journal of Growth and Development. 2013;21(3):205-10.
  10. Kim HS. Age- and Gender-related Differences of Muscle Mass in Korean. Korean J Obes. 2012;21(4):220-7. https://doi.org/10.7570/kjo.2012.21.4.220
  11. Kruger K, Petermann C, Pilat C, et al. Preventive strength training improves working eronomics during welding. Int J Occup Saf Ergon. 2015;21(2):150-7. https://doi.org/10.1080/10803548.2015.1029290
  12. Lee KW, Kim WH. Effect of Physical Therapy Based Tailored Exercise Program on Pain, Accident incidence Rates, and Lost Days of Work in Manufacturing Worker: Single Subject Design. J Korean Soc Phys Med. 2017;12(2):113-20. https://doi.org/10.13066/kspm.2017.12.2.113
  13. Hong SM, Park WI, Park CW, et al. Effects of Short-term Stretching Type of Muscular Strength Gymnastics on Health-related Fitness and Rating of Perceived Pain for for Automotive Industry Worker. Journal of the KOSOS. 2008;23(6):150-7.
  14. Ka SS, Lee GS. Establishment of standards for evaluation of health related fitness according to the working styles of male manufacturing workers. Journal of Korea Academia-Industrial cooperation Society. 2017;8:190-9.
  15. Oh YH, Moon JH, Hong MH, et al. The Association between Hand Grip Strength and Health-Related Quality of Life in Korean Adults. Korean J Sports Med. 2017;35(2):103-11. https://doi.org/10.5763/kjsm.2017.35.2.103
  16. Kang YS, Yang SH, Cho MS, et al. An Investigation of Musculoskeletal Disorders Risk Factor at an Autopart Company. Journal of Korea Safety Management & Science. 2009:69-78
  17. Singh LP. Work Posture Assessment in Forging Industry: An Exploratory Study in India. International Journal of Advanced Engineering Technology. 2010;3(1):358-66.
  18. Doo YT, Jeong YW. Correlation Between Leg Length Difference with Pelvic and Shoulder Level, Weight Distribution, Ankle Muscle Strength A. J. Kinesiol. 2017;19(3):83-8.
  19. Kim ES, Yoon HY. Ergonomic Evaluation of Workload in Imbalanced Lower Limbs Postures. J Ergon Soc Korea. 2011;30(5):671-81. https://doi.org/10.5143/JESK.2011.30.5.671
  20. Park JS, Lee KG, Lee HS, et al. Effects of Jump Rope Exercise on Body Composition, Muscle Fatigue and Physical Fitness in White-collar Workers. Journal of Sport and Leisure Studies. 2019;75(2):441-51. https://doi.org/10.51979/KSSLS.2019.02.75.441
  21. Lim JH, Shin WS. Effects of vibration resistance exercise on strength, range of motion, function, pain and quality of life in persons with tennis elbow. Phys Ther Rehabil Sci. 2016;5(4):163-9. https://doi.org/10.14474/ptrs.2016.5.4.163
  22. Ko SH, Kim YS, Yoon BC, et al. Influence of the Lumbar Spine Adjustment using the Lumbar Roll Support on Head and Neck Posture in Older Adults. Jour. of KoCon. a. 2011;11(12):800-6.
  23. Kim SH, Kim SY, Kim HB, et al. The Correlation Between Foot and Knee Posture Characteristics in Knee Osteoarthritis People. J Korean Soc Phys Med. 2012;7(4):433-42. https://doi.org/10.13066/kspm.2012.7.4.433
  24. Ha YM, Park HW. Association between Obesity and Self-Rated Health in Korean Males and Females. J Korean Biol Nurs Sci. 2012;14(3):203-11. https://doi.org/10.7586/jkbns.2012.14.3.203
  25. Park BS. Relationships between Differences in Shoulder Height, Leg Length, Arch Height and Weight Distribution on Anthropometric Variables. The Korea Journal of Sports Science. 2012;21(4):1199-213.
  26. Han GS, Song IW. The Effect of Combined Exercise Program on Balance, Shoulder Gradient and Forward Head Posture in College Students. The Korea Journal of Sports Science. 2017;26(2):1127-37. https://doi.org/10.35159/kjss.2017.04.26.2.1127
  27. Park JS, Jeong SH. Study on Correlation between Difference of Pelvic Height and Gait Balance of Patients with Abnormal Postures. J Korean Med Rehab. 2014;24(3):149-55.
  28. Kim CH, KO HR, Kim HJ, et al. Effects of the Pelvic Abnormality on the Human Balance. Journal of Korean Society of Health Sciences. 2017;14(2):1-14.
  29. Kim SY. The Development of a Structural Model on Work-related Musculoskeletal Disorders of Women Workers. J Korean Acad Community Health Nurs. 2007;17(4):624-33.
  30. Kisner C, Colby LA, Borstad J, et al. Therapeutic exercise: Founadations and techniques, philadelphia. F. A. Davis Company. 2018.
  31. Lee GH, Kim CH, Shin HC, et al. The Relation of Physical Activity to Helath Related Quality of Life. J Korean Acad Fam Med. 2007;28(6):451-9.
  32. Lee KM, Chun JB, Park DU, et al. Methods to Minimize or Adjust for Healthy Worker Effect in Occupational Epidemiology. J Environ Health Sci. 2011;37(5):342-7.
  33. YJ, Shin JH, Yum KS, et al. The Association between Obesity Indices and Physical Fitness. J Korean Acad Fam Med. 2003;24(3):271-8.
  34. Jung JH, Cho JH. Relationship between Muscle Strength, Body Composition and Fatigue in Female College Students. The Korea Journal of Sports Science. 2018;27(6): 1003-10. https://doi.org/10.35159/kjss.2018.12.27.6.1003
  35. Bobath B. Adult hemiplegia: Evaluation and treatment. London. William Heineman Medical Books Ltd. 1990.
  36. Kim MJ, Kim JY, Lee HW, et al. The Foot Pressure Change Caused by Functional Leg Length Having an Effect on the Foot Temerature. Journal of The Korean Society of Integrative Medicine. 2013;1(2):37-46. https://doi.org/10.15268/ksim.2013.1.2.037

Cited by

  1. 상지의 움직임과 저항 적용에 따른 Formetric 4D를 이용한 척추의 3차원적 분석 vol.15, pp.3, 2020, https://doi.org/10.13066/kspm.2020.15.3.69
  2. Effects of Musculoskeletal Disease Prevention and Treatment Customized Exercise Program according to Various Music Tempo on the Pain, Posture, and Function of Auto Parts Manufacturing Workers vol.10, pp.1, 2019, https://doi.org/10.14474/ptrs.2021.10.1.48