Journal of the Korean Society of Physical Medicine (대한물리의학회지)

The Korean Society of Physical Medicine (대한물리의학회)
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Analysis of Electromyographic Activities of Erect Spinae at Different Height of Table during Ultrasound Therapy Work

물리치료사의 초음파 작업시 테이블 높이에 따른 척추기립근의 근전도 활동 분석

  • Kim, Chung-Yoo (Department of Physical Therapy, Catholiac University of Busan) ;
  • Kang, Jong-Ho (Department of Physical Therapy, Catholiac University of Busan)
  • 김충유 (부산가톨릭대학교 물리치료학과) ;
  • 강종호 (부산가톨릭대학교 물리치료학과)
  • Received : 2013.02.21
  • Accepted : 2013.06.04
  • Published : 2013.08.31
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Abstract

PURPOSE: The purpose of this study was to examine differences in erect spinae activities at different height of table during ultrasound therapy in order to propose a optimum work environment. METHODS: Twenty five healthy adult males and females volunteered to participate in this study. EMG signals of both erector spinae(T10, T12, L2, L4) were recorded throught the surface electromyography system at different height of table(45cm, 56.2cm, 67.5cm) during ultrasound therapy work. RESULTS: The higher table heights was, the lower %RVC of the T10, T12, L2, L4 erect spinae at both sides. The left and right T10, T12 and the left L4 showed significant differences. The lower the spinal level was, the higher %RVC of both erect spinae at 45cm, 56.2cm, 67.5cm. The left erect spinae at 56.2cm, right erect spinae at 45cm, 67.5cm showed significant differences. CONCLUSION: The muscle activities of both erect spinae decreased at higher table height and increased lower spinal level. We identified lower table height are risk factor of spine work related musculoskeletal disorders.

Keywords

References

  1. Bae YH, Lee JH, Yoo HJ et al. Associations between Work-Related Musculoskeletal Pain, Quality of Life and Presenteeism in Physical Therapists. Korean Industrial Hygiene Association Journal. 2012;22(1): 61-72.
  2. Berquer R, Smith WD, Davis S. An ergonomic study of the optimum operating table height for laparoscopic surgery. Surg Endosc. 2002 Mar;16(3):416-21. https://doi.org/10.1007/s00464-001-8190-y
  3. Brown H, Paul L, Hislop J et al. Erector spinae activity during three methods of lifting a baby car seat in postnatal women and matched controls. Physiotherapy. 2004;90(4):204-9. https://doi.org/10.1016/j.physio.2004.06.003
  4. Chaffin DB. Localized muscle fatigue-definition and measurement. Journal of Occupational Medicine. 1973;15(4):346-54.
  5. Cho KY. Influence of Asymmetry and Flexion on Trunk Muscle Recruitment Pattern. Pukyong National University. Master's thesis. 2011.
  6. Colado JC, Pablos C, Chulvi-Medrano I et al. The progression of paraspinal muscle recruitment intensity in localized and global strength training exercises is not based on instability alone. Arch Phys Med Rehabil. 2011;92(11):1875-83. https://doi.org/10.1016/j.apmr.2011.05.015
  7. Criswell E. Cram's introduction to surface electromyography. 2nd eJones & Bartlett Publishers. 2011.
  8. Cromie JE, Robertson VJ, Best MO. Work-related musculoskeletal disorders in physical therapists: prevalence, severity, risks, and responses. Phys Ther. 2000;80(4):336-51.
  9. Glover W. Work-related Strain Injuries in Physiotherapists. Physiotherapy. 2002;88(6):364-72. https://doi.org/10.1016/S0031-9406(05)60749-3
  10. Hong SG, Choi JH, Jang BK. Prevalence Rate of Musculoskeletal Symptoms and Its Related Factors in Male Physical Therapists. The Korean public health association. 2011;37(2):63-74.
  11. Jakob M, Liebers F, Behrendt S. The effects of working height and manipulated weights on subjective strain, body posture and muscular activity of milking parlor operatives-laboratory study. Appl Ergon. 2012;43(4): 753-61. https://doi.org/10.1016/j.apergo.2011.11.009
  12. Jeong HG, Goh YM, Yim HW, Park CY, Jeong CH. A Relationship between Cumulative Trauma Disorder and the Type of Workstatons and chairs in Workers with Repetitive Motion Tasks. The Korean Society of Occupational Medicine. 2001;13(2):152-163.
  13. Jung WJ. Effects of a wallet in the back trouser pocket on paraspinal muscle activity in sitting. Yonsei University. Master's thesis. 2009.
  14. Lee JH. Test of lumbar vertebra's musculoskeletal system loading burden using three-dimensional motion analysis system and dynamic electromyography. Yonsei University. Master's thesis. 2010.
  15. Neumann DA. Kinesiology of the musculoskeletal system. Elsevier. 2002.
  16. Nezihe E, Cumhur E. Erector spinae muscle responses while standing. J Neurol Neurosurg Psychiatry. 1981;44(1):73-8. https://doi.org/10.1136/jnnp.44.1.73
  17. Nouwen A, Van Akkerveeken PF, Versloot JM. Patterns of muscular activity during movement in patients with chronic low-back pain. Spine. 1987;12(8):777-82. https://doi.org/10.1097/00007632-198710000-00012
  18. Pascarelli E. Complete Guide to Repetitive Strain Injury. John Wiley & Sons, Inc. 2004.
  19. Seong YJ, Lee HJ, Park JY et al. The Effect of Orthotics on Electromyographic Activity in the Erector Spinae Muscles During Golf Putting. J Kor Sport Med. 2006;24(1):70-5.
  20. Sung PS, Lammers AR, Danial P. Different parts of erector spinae muscle fatigability in subjects with and without low back pain. Spine J. 2009 Feb;9(2):115-20. https://doi.org/10.1016/j.spinee.2007.11.011
  21. West DJ, Gardner D. Occupational injuries of physiotherapists in North and Central Queensland. Aust J Physiother. 2001;47(3):179-86. https://doi.org/10.1016/S0004-9514(14)60265-8
  22. Zedka M, Prochazka A. Phasic activity in the human erector spinae during repetitive hand movements. J Physiol. 1997;504(3):727-34. https://doi.org/10.1111/j.1469-7793.1997.727bd.x
  23. Zhang FR, He LH, Wu SS et al. Quantify work load and muscle functional activation patterns in neck-shoulder muscles of female sewing machine operators using surface electromyogram. Chin Med J (Engl). 2011;124(22):3731-7.

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