Physical Therapy Korea (한국전문물리치료학회지)

Korean Research Society of Physical Therapy (한국전문물리치료학회)
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Intra-Rater Test-Retest Reliability of Ely's Test Using Smartphone in Patients With Lumbar Extension-Rotation Syndrome

  • Park, Kyue-Nam (Dept. of Physical Therapy, The Graduate School, Yonsei University) ;
  • Ha, Sung-Min (Laboratory of Kinetic Ergocise based on Movement Analysis) ;
  • Chung, Sung-Dae (Dept. of Physical Therapy, The Graduate School, Yonsei University) ;
  • Kim, Si-Hyun (Dept. of Physical Therapy, The Graduate School, Yonsei University) ;
  • Jang, Jun-Hyeok (Haeundae Jaseng Hospital of Oriental Medicine)
  • Received : 2012.09.23
  • Accepted : 2012.10.26
  • Published : 2012.11.19
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Abstract

Ely's test is commonly used to assess rectus femoris muscle flexibility. however, a reliability limit of this test was demonstrated by a previous study. In this study, we present an alternative method using an application for a digital horizontal level in a smartphone (DHLS) to complement the reliability limit of Ely's test. The aim of this study was to examine the reliability of Ely's test using DHLS on the pelvis, compared to using visual observation (VO) of pelvic and hip motions. Nineteen patients with lumbar extension-rotation syndrome were recruited for this study. An examiner examined the rectus femoris flexibility (both pass/fail and goniometer scoring) through Ely's test using both DHLS and VO. A retest session was completed two hours later for within-day reliability and seven days later for between-day intra-rater test-retest reliability. Results showed higher Kappa values for pass/fail scoring and higher intraclass correlation coefficient values for goniometer scoring in Ely's test using DHLS, compared to using VO. Measurement error and Bland and Altman plots further demonstrated the degree of intra-rater variance during Ely's test using DHLS in a clinical setting, compared to using VO. These results demonstrated that Ely's test using DHLS showed acceptable reliability compared to using VO. Ely's test using DHLS could be widely used for measuring the rectus femoris muscle flexibility in patients with lumbar extension-rotation syndrome, although the inter-rater reliability needs to be established first.

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References

  1. Atkinson G, Nevill AM. Statistical methods for assessing measurement error (reliability) in variables relevant to sports medicine. Sports Med. 1998;26(4):217-238. https://doi.org/10.2165/00007256-199826040-00002
  2. Bland JM, Altman DG. Agreement between methods of measurement with multiple observations per individual. J Biopharm Stat. 2007;17(4):571-582. https://doi.org/10.1080/10543400701329422
  3. France L, Nester C. Effect of errors in the identification of anatomical landmarks on the accuracy of Q angle values. Clin Biomech (Bristol, Avon). 2001;16(8):710-713. https://doi.org/10.1016/S0268-0033(01)00045-6
  4. Gombatto SP, Collins DR, Sahrmann SA, et al. Gender differences in pattern of hip and lumbopelvic rotation in people with low back pain. Clin Biomech (Bristol, Avon). 2006;21(3):263-271. https://doi.org/10.1016/j.clinbiomech.2005.11.002
  5. Haley SM, Osberg JS. Kappa coefficient calculation using multiple ratings per subject: A special communication. Phys Ther. 1989;69(11):970-974.
  6. Harris-Hayes M, Van Dillen LR, Sahrmann SA. Classification, treatment and outcomes of a patient with lumbar extension syndrome. Physiother Theory Pract. 2005;21(3):181-196 https://doi.org/10.1080/09593980500212987
  7. Lenart G, Kullmann L. Isolated contracture of the rectus femoris muscle. Clin Orthop (Relat Res). 1974;99:125-130. https://doi.org/10.1097/00003086-197403000-00014
  8. Magee DJ. Orthopedic Physical Assessment. Philadelphia WB, Saunders, 2005:693.
  9. Maluf KS, Sahrmann SA, Van Dillen LR. Use of a classification system to guide nonsurgical management of a patient with chronic low back pain. Phys Ther. 2000;80(11):1097-1111.
  10. Norris CM. Spinal stabilisation 4: Muscle imbalance and the low back. Physiotherapy. 1995;81(3): 127-138. https://doi.org/10.1016/S0031-9406(05)67068-X
  11. Norton BJ, Sahrmann SA, Van Dillen FL. Differences in measurements of lumbar curvature related to gender and low back pain. J Orthop Sports Phys Ther. 2004;34(9):524-534. https://doi.org/10.2519/jospt.2004.34.9.524
  12. Park KN, Cynn HS, Kwon OY, et al. Effects of the abdominal drawing-in maneuver on muscle activity, pelvic motions, and knee flexion during active prone knee flexion in patients with lumbar extension rotation syndrome. Arch Phys Med Rehabil. 2011;92(9):1477-1483. https://doi.org/10.1016/j.apmr.2011.03.020
  13. Peeler J, Anderson JE. Reliability of the Ely's test for assessing rectus femoris muscle flexibility and joint range of motion. J Orthop Res. 2008;26(6):793-799. https://doi.org/10.1002/jor.20556
  14. Sahrmann SA. Diagnosis and Treatment of Movement Impairment Syndrome. St Louis, Mosby, 2002: 103-111.
  15. Scholtes SA, Gombatto SP, Van Dillen LR. Differences in lumbopelvic motion between people with and people without low back pain during two lower limb movement tests. Clin Biomech (Bristol, Avon). 2009;24(1):7-12. https://doi.org/10.1016/j.clinbiomech.2008.09.008
  16. Richardson CA, Jull GA. Muscle control-pain control. What exercises would you prescribe? Man Ther. 1995;1(1):2-10. https://doi.org/10.1054/math.1995.0243
  17. Rothstein JM, Miller PJ, Roettger RF. Goniometric reliability in a clinical setting: Elbow and knee measurements. Phys Ther. 1983;63(10):1611-1615.
  18. Rosser BA, Eccleston C. Smartphone applications for pain management. J Telemed Telecare. 2011;17 (6):308-312. https://doi.org/10.1258/jtt.2011.101102
  19. Shin SH, Ro du H, Lee OS, et al. Within-day reliability of shoulder range of motion measurement with a smartphone. Man Ther. 2012;17(4):298-304. https://doi.org/10.1016/j.math.2012.02.010
  20. Van Dillen LR, Sahrmann SA, Norton BJ, et al. Reliability of physical examination items used for classification of patients with low back pain. Phys Ther. 1998;78(9):979-988.
  21. Walter SD, Eliasziw M, Donner A. Sample size and optimal designs for reliability studies. Stat Med. 1998;17(1):101-110. https://doi.org/10.1002/(SICI)1097-0258(19980115)17:1<101::AID-SIM727>3.0.CO;2-E

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