Physical Therapy Rehabilitation Science

korean Academy of Physical Therapy Rehabilitation Science (물리치료재활과학회)
권호 표지
DOI QR코드

DOI QR Code

Knee Joint Isokinetic Rehabilitation Exercise Equipment Usability Evaluation

  • Byoung-Kwon Lee (Department of Physical Therapy, Konyang University) ;
  • Seung-Hwa Jung (Department of Physical Therapy, Konyang University) ;
  • Hye-Ri Shin (AgeTech-Service Convergence Major, Department of Gerontology, Graduate School of East-West Medicine Science, Kyunghee University) ;
  • Dong-Wook Han (Department of Physical Therapy, Silla University) ;
  • Chang-Young Kim (Department of Pharmaceutical and Bio-Pharmaceutical Industry, Korea Health Industry Development Institute) ;
  • Jong-Min Woo (Healthecare & Spa industry Promotion Agency) ;
  • Dae-Sung Park (Department of Physical Therapy, Konyang University)
  • Received : 2022.11.15
  • Accepted : 2022.12.12
  • Published : 2022.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Objective: In this study, the test-retest reliability and validity were presented to evaluate the usability of isokinetic rehabilitation equipment for the knee joint. Design: Cross-sectional design, reliability & validity study. Methods: Thirty healthy adults participated in the study. A CSMI dynamometer was used as a standardized measuring device to present the validity of the equipment. It was measured based on the dominant leg. The average peak torque value was selected as the measurement variable. After the measurement, a questionnaire was conducted on safety, satisfaction, and performance through the usability evaluation questionnaire. Results: The knee joint isokinetic rehabilitation equipment showed high reliability with Intraclass Correlations Coefficients (ICC) =0.883~0.956. In order to check the validity of the equipment, the 95% confidence interval of the mean difference limit was confirmed by the Bland & Altman plot. As a result, all three angular velocities showed a smaller confidence interval in the flexion than in extension. There were less than 10 plots that were not included in 2 Standard Deviation (SD) between all measurements. As a result of the usability evaluation questionnaire, the average of the safety domain(4.9±0.4), satisfaction domain(4.1±0.8), performance domain(4.3±0.8). Conclusions: If the product is improved by supplementing the items identified in the usability evaluation process, it is judged that it can be used as a useful device in various knee joint rehabilitation fields.

Keywords

References

  1. Fisher NM, Pendergast DR. Reduced muscle function in patients with osteoarthritis. Scand J Rehabil Med. 1997;29(4):213-21. 
  2. Chung MS, Kwak HS. Effects of a muscle strengthening exercise program after total knee arthroplasty. J Korean Acad Soc Nurs Educ. 2008;14(1):20-9.  https://doi.org/10.5977/JKASNE.2008.14.1.020
  3. Devita, P, Hortobagyi T, Barrier J. Gait biomechanics are not normal after anterior cruciate ligament reconstruction and accelerated rehabilitation. Med Sci Sports Exerc. 1998; 30: 1481-8.  https://doi.org/10.1097/00005768-199810000-00003
  4. Cho WS, Seol ES, Kim MY, Ahn HS, Ji HC. The results of sports rehabilitation after anterior cruciate ligament reconstruction. Korean J Sports Med. 2005;23(3):241-5. 
  5. Kim EK. The effexts of proprioceptive exercise and isokinetic exercise on function of knee joint anterior cruciate ligament reconstruction. J Sports Korean Res. 2007;15:479-88. 
  6. Hislop HJ, Perrine J. The isokinetic concept of exercise. Phys Ther. 1967;47(1):114-7.  https://doi.org/10.1093/ptj/47.2.114
  7. Moffroid M, Whipple R, Hofkosh J, Lowman E, Thistle H. A study of isokinetic exercise. Phys Ther. 1969;49(7):735-47.  https://doi.org/10.1093/ptj/49.7.735
  8. Jun TW, Shin HJ, Park JY, Lee SY, Lee O. Reliability of iso-kinetic muscle strength testing system. Journal of Korean Coaching Developing. 2011;13(2):103-12. 
  9. Won JI, Cho SH, Yi CH, Kwon OY, Lee YH, Park JM. Characteristics of the fatigue index in EMG power spectrum analysis during isokinetic exercise. Physical Therapy Korea. 2001;8(3):11-26. 
  10. Lee GH, Kim YJ, Park SH, Lee HS, Cho HA. A Study on the rehabilitation equipment for knee joint. J Korean Soc Manuf Technol Eng. 2013;22(3-1):509-17. 
  11. Kim KW, Ko YG. Design improvement of indoor hand bike for people with spinal cord injury through usability test. Journal of Integrated Design Research. 2021;20(1):89-105.  https://doi.org/10.21195/JIDR.2021.20.1.006
  12. Rankin G, Stokes M. Reliability of assessment tools in rehabilitation: an illustration of appropriate statistical analyses. Clin Rehabil. 1998;12:187-99.  https://doi.org/10.1191/026921598672178340
  13. Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet. 1986;1:307-10. https://doi.org/10.1016/S0140-6736(86)90837-8