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Accuracy and Reliability of The Spine-Pelvis Monitor to Record Three-Dimensional Characteristics of The Spine-Pelvic Motion
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 Title & Authors
Accuracy and Reliability of The Spine-Pelvis Monitor to Record Three-Dimensional Characteristics of The Spine-Pelvic Motion
Kim, Jung-Yong; Yoon, Kyung-Chae; Min, Seung-Nam; Yoon, Sang-Young;
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Objective: The aim of this study is to evaluate the accuracy and reliability of Spine-Pelvis Monitor(SPM) that was developed to measure 3-dimensional motion of spine and pelvis using tilt sensor and gyro sensor. Background: The main cause of low back pain is very much associated with the task using the low back and pelvis, but no measurement technique can quantify the both spine and pelvis. Method: For testing the SPM, 125 angles from three anatomical planes were measured three times in order to evaluate the accuracy and reliability. The accuracy of SPM in measuring dynamic motion was evaluated using digital motion analysis system. The motion pattern captured by two measuring methods was compared with each other. In result, the percentage error and Cronbach coefficient alpha were calculated to evaluate the accuracy and reliability. Results: The percentage error was 0.35% in flexion-extension on sagittal plane, 0.43% in lateral bending on coronal plane, and 0.40% in twisting on transverse plane. The Cronbach coefficient alpha was 1.00, 0.99 and 0.99 in sagittal, coronal and transvers plane, respectively. Conclusion: The SPM showed less than 1% error for static measurement, and showed reasonably similar pattern with the digital motion system. Application: The results of this study showed that the SPM can be the measuring method of spine pelvis motion that enhances the kinematic analysis of low back dynamics.
Spine;Pelvis;Motion;SPM(Spine-Pelvis Monitor);Accuracy;Reliability;
 Cited by
Andersson, G. B., Epidemiologic aspects on low-back pain in industry, Spine, 6(1), 53-60, 1981. crossref(new window)

Bigos, S. J., Spengler, D. M., Martin, N.A., Zeh, J., Fisher, L., Nachemson, A. and Wang, M. H., Back injuries in industry: A retrospective study. II. Injury factors, Spine, 11(3), 246-251, 1986. crossref(new window)

Brown, J. R., Factors contributing to the development of LBP in industrial workers, American Industrial Hygiene Association Journal, 36(1), 26-31, 1975. crossref(new window)

Chaffin, D. B. and Park, K. S., A longitudinal study of low back pain as associated with occupational lifting factors, American Industrial Hygiene Association Journal, 34(12), 513-525, 1973. crossref(new window)

Frymoyer, J. W., Pope, M. H., Clements, J. H., Wilder, D. G., MacPherson, B. and Ashikaga, T., Risk factors in low back pain An epidemiological survey, The journal of bone and joint surgery, 65 (2), 213-218, 1983.

Garg, A. and Moore, J. S., Epidemiology of low back pain in industry. In: Moore JS, Farg A, editors. Ergonomics: low-back pain, carpal tunnel syndrome, and upper extremity disorders in the workplace. Philadelphia(PA): Hanley and Belfus, 7(4), 593-608, 1992.

Kelsey, J. L., Githens, P. B.,White, A. A., Holford, T. R., Walter, S. D., Connor, T. O., Ostfeld, A. M., Weil, U., Southwick, W. O. and Calogero, J. A., An epidemiologic study of lifting and twisting on the job and risk for acute prolapsed lumbar intervertebral disc, Journal of orthopaedic research, 2(1), 61-66, 1984. crossref(new window)

Magora, A., Investigation of the relation between low back pain and occupation. 3. Physical requirements: Sitting, standing and weight lifting, Industrial Medicine, 41(12), 5-9, 1972.

Marras, W. S., The case for cumulative trauma in low back disorders. Spine, 3, 177-179, 2003.

Marras, W. S. and Mirka, G. A., Trunk strength during asymmetric trunk motion, Human Factors, 31(6), 667-677, 1989.

Marras, W. S. and Mirka, G. A., Trunk responses to asymmetric acceleration, Journal of Orthopaedic research, 8(6), 824-832, 1990. crossref(new window)

Marras, W. S. and Sommerich, C. M., A three-dimensional motion model of loads on the lumbar spine, Part I: Model structure, Human Factors (in press), 1991a.

Marras, W. S. and Sommerich, C. M., A three-dimensional motion model of loads on the lumbar spine, Part II: Model validation, Human Factors(in press), 1991b.

Marras, W. S., King, A. I. and Joynt, R. L., Measurements of loads on the lumbar spine under isometric and isokinetic conditions, Spine, 9(2), 176-188, 1984. crossref(new window)

Marras, W. S. and Kim, J. Y., Anthropometry of industrial populations, Ergonomics, 36(4), 371-378, 1993. crossref(new window)

Marras, W. S., Rangarajulu, S. L. and Wongsam, F. E., Trunk force development during static and dynamic lifts, Human Factors, 29, 19 -29, 1987.

Marras, W. S., Wongsam, P. E. and Rangarajulu, R. L., Trunk motion during lifting: The relative cost, International Journal of Industrial Ergonomics, 1(2), 103-113, 1986. crossref(new window)

National Research Council, Institute of Medicine, Musculoskeletal disorders and the workplace: Low back and upper extremities(Washington, DC: National Academy Press), 2001.

Pope, M. H., Risk indicators in low back pain, Annals of medicine, 21(5), 387-392, 1989. crossref(new window)

Skovron, M. L., Epidemiology of low back pain, Baillière's Clinical Rheumatology, 6(3), 559-73, 1992. crossref(new window)