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Analysis of Spinal Stability Affected by Working Height, Safety Handrail and Work Experience in Using Movable Scaffold
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 Title & Authors
Analysis of Spinal Stability Affected by Working Height, Safety Handrail and Work Experience in Using Movable Scaffold
Kim, Jung-Yong; Min, Seung-Nam; Sung, Si-Hoon;
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 Abstract
The purpose of this study is to analyze the spine stability by comparing muscle activation in various scaffold working conditions. The independent working conditions were designed by two levels of working height, existence and absence of safety handrail, and the two levels of expertise. The corresponding activities of the agonist and antagonist muscles of spine were simultaneously recorded by using EMG. As results, novice worker showed increased muscle activity while doing the task on the 2nd floor, absence of handrail. And expert showed the increase of co-contraction while working on the 2nd floor without handrail. Such co-contraction was found to increase the spine stability when the working condition become risky. On the other hand, the co-contraction was prolonged, the spine muscle fatique and disc pressure could be increased, which would increase the risk of musculo-skeletal disorder. The results of co-contraction in this study indicates that the motor control system responds to maintain the stability of the spine particularly when workers cognitively recognize the danger of falling or imbalance. This study also quantitatively accounted for the biomechanical cause of LBP among workers who has to prevent themselves from falling. Therefore, if can be said that safe environment preventing falling can also prevent workers from MSDs as well. Such knowledge can be applied to design ergonomic workplace environment as well as movable scaffold.
 Keywords
Spine Stability;Co-Contraction;EMG;Low Back Pain;Scaffold;
 Language
Korean
 Cited by
1.
Analysis of Muscle Fatigue of Erect Spinae Caused by Treatment Table Height in Ultrasound Therapy, Journal of Physical Therapy Science, 2013, 25, 7, 881  crossref(new windwow)
 References
1.
김정룡, 신현주, 이인재, 들기/내리기 작업 시 소음과 배경음악이 몸통근육 피로도에 미치는 영향, 대한인간공학회, 27(3), 15-22, 2008. crossref(new window)

2.
신현주, 김정룡, 작업 중 여유시간 변화에 따른 몸통 근육 누적 피로도. 대한산업공학회, 33(1), 44-51, 2007.

3.
한국산업안전보건공단 산업안전보건연구원, 2007 산업재해 현황 분석 연보, 한국산업안전보건공단, 2008.

4.
한국산업안전보건공단 산업안전보건연구원, 2007 산업재해원인조사, 2008.

5.
한국산업안전보건공단, 이동식비계 구조기준 및 설계지침, 1997.

6.
Besier, T. F., Lloyd, D. G. and Ackland, T., R., Muscle Activation Strategies at the Knee during Running and Cutting Maneuvers, Medicien and Cience in Sports and Exercise, 35(1), 119-127, 2003. crossref(new window)

7.
Blackwell, J. R. and Cole, K. J., Wrist Kinematics Differ in Expert and Novice Tennis Players Performing the Backhand Stroke: Implications for Tennis Elbow, Journal of Biomechanics, 27(5), 509-516, 1994. crossref(new window)

8.
Cesari, P. and Bertucco, M., Coupling between Punch Efficacy and Body Stability for Elite Karate, Journal of Science and Medicine in Sport, 11, 353-356, 2008. crossref(new window)

9.
Cholewicki, J., Mechanical Stability of the in Vivo Lumbar Spine, [PhD Dissertation] Dept. of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada, 1993.

10.
Cholewicki, J. and McGill, S. M., Mechanical Stability of the in Vivo Lumbar Spine: Implications for Injury and Chronic Low Back Pain, Clinical Biomechanics, 11, 1-15, 1996. crossref(new window)

11.
Cholewicki, J., Simons, A. D. P. and Radebold, A., Effects of External Trunk Loads on Lumbar Spine Stability, Journal of Biomechanics, 33, 1377-1385, 2000. crossref(new window)

12.
Cholewicki, J. and VanVliet, J. J., Relative Contribution of Trunk Muscles to the Stability of the Lumbar Spine during Isometric Exertions, Clinical Biomechanics, 17, 99-105, 2002. crossref(new window)

13.
Dolan, P., Mannion, F. and Adams, M. A., Fatigue of the Erector Spinae Muscles: A Quantitative Assessment using "Frequency Banding" of the Surface Electromyography Signal, Spine, 20(2), 149-159, 1995. crossref(new window)

14.
Gonzalez, R., Sifre, S., Benedito, J. and Nogues, V., Comparison of Electromyographic Pattern of Sensory Experts and Untrained Subjects during Chewing of Mahon cheese, Journal of Dairy Research, 69, 151-161, 2002.

15.
Granata, K. P. and Orihiomo K. F., Response of Trunk Muscle Coactivation to Changes in Spinal Stability, Journal of Biomechanics, 34, 1117-1123, 2001. crossref(new window)

16.
Granata, K. P., Slota, G. P., and Wilson, S. E., Influence of Fatigue in Neuromuscular Control of Spinal Stability, Human Factors, 46(1), 81-91, 2004. crossref(new window)

17.
Konrad, P., The ABC of EMG; A Practical Introduction to Kinesiological Electromyography, Version 1.0, Noraxon INC., USA, 2005.

18.
Lee, J. H., Ooi, Y. and Nakamura, K., Measurement of Muscle Strength of the Trunk and the Lower-Extremities in Subjects with History of Low-back-pain, Spine, 20, 1994-1996, 1995. crossref(new window)

19.
Macintosh, J. E., Bogduk, N. and Gracovetsky, S., The Biomechanics of the Thoracolumbar Fascia, Clinical Biomech, 2, 78-83, 1987. crossref(new window)

20.
McGill, S. M., Grenier, S., Kavcic, N. and Cholewicki, J., Coordination of Muscle Activity to assure Stability of the Lumbar Spine, Journal of Electromyography and Kinesiology, 13, 353-359, 2003. crossref(new window)

21.
Marras, W. S., Ferguson, S. A., Gupta P., Bose S., Parnianpour, M., Kim, J. Y. and Crowell, R. R., The Quantification of Low Back Disorder Using Motion Measures, Spine, 24(20), 2091-2100, 1999. crossref(new window)

22.
Panjabi, M. M., The Stabilizing System of the Spine. Part I. Function, Dysfunction, Adaptation, and Enhancement, Journal of Spinal Disorders, 5, 383-389, 1992. crossref(new window)

23.
Potvin, J. R. and O'Brien, P. R., Trunk Muscle Co-contraction Increases During Fatiguing, Isometric, Lateral Bend Exertions: Possible Implications for Spine Stability, Spine, 23(7), 774-780, 1998. crossref(new window)

24.
Reeves, N. P., Narendra, K. S. and Cholewicki, J., Spine Stability: The Six Blind Men and the Elephant, Clinical Biomechanics, 22, 266-274, 2007. crossref(new window)

25.
Snijders, C. J., Ribbers, M. T.L.M, de Bakker, H. V., Stoeckart, R. and Stam, H. J., EMG Recordings of Abdominal and Back Muscles in Various Standing Postures: Validation of a Biomechanical Model on Sacroiliac Joint Stability, Journal of Electromyography and Kinesiology, 8, 205-214, 1998. crossref(new window)

26.
van Dieen, J. H., Weinans, H., and Tussaint, H. M., Fractures of the Lumbar Vertebral Endplate in the Etiology of Low Back Pain: A hypothesis on the Causative Role of Spinal Compression in Aspecific Low Back Pain, Medical Hypotheses, 53(3), 246-252, 2000. crossref(new window)

27.
van Dieen, J. H., Cholewicki, J. and Radebold, A., Trunk Muscle Recruitment Patterns in Patients With Low Back Pain Enhance the Stability of the Lumbar Spine, Spine, 28(8), 834-841, 2003. crossref(new window)

28.
van Dieen, J. H., Selen, L. P. J. and Cholewicki, J., Trunk Muscle Activation in Low-back Pain Patients, an Analysis of the Literature, Journal of Electromyograph and Kinesiology, 13, 333-351, 2003. crossref(new window)