Intra-Rater Test-Retest Reliability of Ely’s Test Using Smartphone in Patients With Lumbar Extension-Rotation Syndrome

• 발행기관: 한국전문물리치료학회
• 저자명: Kyue-nam Park Sung-min Ha Sung-dae Chung Si-hyun Kim Jun-hyeok Jang
• 간행물 정보: 『한국전문물리치료학회지』한국전문물리치료학회지 제19권 제4호, 46~54쪽, 전체 9쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2012.10.31

영문 초록

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.

목차

Abstract

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키워드

Digital horizontal level Ely’s test Reliability Smartphone