Reliability of Scapular Downward Rotation Measurement in Subjects With Scapular Downward Rotation Syndrome
Physical Therapy Korea 2014³â 21±Ç 3È£ p.73 ~ p.79
ÃÖ¿ìÁ¤(Choi Woo-Jeong) - Yonsei University Graduate School Department of Physical Therapy
ÀÌÁöÇö(Lee Ji-Hyun) - Yonsei University Graduate School Department of Physical Therapy
Á¤È¿Á¤(Jeong Hyo-Jung) - Yonsei University Graduate School Department of Physical Therapy
À±Å¸²(Yoon Tae-Lim) - Yonsei University Graduate School Department of Physical Therapy
½ÅÇå¼®(Cynn Heon-seock) - Yonsei University College of Health Science Department of Physical Therapy
Abstract
The purposes of the current study were to (1) estimate the inter-rater agreement for visual assessment of scapular downward rotation (SDR), (2) develop the scapular downward rotation index (SDRI) as a method to measure SDR objectively and quantitatively, and (3) analyze the intra- and inter-rater reliability of the SDRI. Twenty subjects with scapular downward rotation syndrome (SDRS) were recruited for this study. The visual assessment and the measurement for the SDRI were conducted by two examiners in two sessions each. The SDRI [(a-b)¡Àa¡¿100] is calculated with the measurement of two linear distances: One is a perpendicular distance from the root of the scapular spine to the thoracic
mid-line (a), and the other is a perpendicular distance from the inferior angle of the scapula to the thoracic mid-line (b). Cohen¡¯s kappa coefficient was calculated to estimate the inter-rater agreement for visual assessment. Intra-class correlation coefficients (ICCs) with a 95% confidence interval (CI), the standard error of measurement, and minimal detectable differences were calculated to assess intra- and inter-rater reliability of SDR measurement using the SDRI. The results indicated that the kappa coefficient of inter-rater agreement for visual assessment was fair (¥ê=.21). The intra-rater reliability of SDR measurement using the SDRI was excellent for examiner 1 (ICC=.92, 95% CI=.78¡.97) and good for examiner 2 (ICC=.82, 95% CI=.55¡.93). The inter-rater reliability was moderate (ICC=.73, 95% CI=.32¡.89). These findings showed that SDR measurement using the SDRI for subjects with SDRS may be considered reliable and better than the visual assessment.
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Reliability, Scapular downward rotation index, Visual assessment
KMID :
0608320140210030073
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