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Reliability Study of Measuring Range of Motion Glenohumeral Joint Internal Rotation With Pressure Biofeedback Stabilization

한국전문물리치료학회지 2015년 22권 4호 p.62 ~ 70
황의재, 하성민, 전인철, 정성훈, 최규환, 김수정, 권오윤,
소속 상세정보
황의재 ( Hwang Ui-Jae ) - Yonsei University Graduate School Department of Physical Therapy
하성민 ( Ha Sung-Min ) - Sangji University College of Health Sciences Department of Physical Therapy
전인철 ( Jeon In-Chul ) - Yonsei University Graduate School Department of Physical Therapy
정성훈 ( Jung Sung-Hoon ) - Yonsei University Graduate School Department of Physical Therapy
최규환 ( Choi Kyu-Hwan ) - Ansan University Department of Physical Therapy
김수정 ( Kim Su-Jung ) - Youngsan University College of Health Sciences Department of Physical Therapy
권오윤 ( Kwon Oh-Yun ) - Yonsei University College of Health Science Department of Physical Therapy

Abstract


The aims of the current study were to assess reliability of range of motion (ROM) measurement of glenohumeral internal rotation (GIR) with a pressure biofeedback stabilization (PBS) method and to compare the reliability between manual stabilization (MS) and the PBS method. In measurement of pure glenohumeral joint motion, scapular stabilization is necessary. The MS method in GIR ROM measurement was used to restrict scapular motion by pressing the palm of the tester’s hand over the subject’s clavicle, coracoid process, and humeral head. The PBS method was devised to maintain consistent pressure for scapular stabilization during GIR ROM measurement by using a pressure biofeedback unit. GIR ROM was measured by 2 different stabilization methods in 32 subjects with GIR deficit using a smartphone clinometer application. Repeated measurements were performed in two test sessions by two testers to confirm inter- and intra-rater reliability. After tester A performed measurements in test session 1, tester B’s measurements were conducted one hour later on the same day to assess the inter-rater reliability and then tester A performed again measurements in test session 2 for confirming the intra-rater reliability. Intra-class correlation coefficient (ICC) (2,1) was applied to assess the inter-rater reliability and ICC (3,1) was applied to determine the intra-rater reliability of the two methods. In the PBS method, the intra-rater reliability was excellent (ICC=.91) and the inter-rater reliability was good (ICC=.84). The inter-rater and intra-rater reliability of the PBS method was higher than in the MS method. The PBS method could regulate manual scapular stabilization pressure in inter- and intra-rater measuring GIR ROM. Results of the current study recommend that the PBS method can provide reliable measurement data on GIR ROM.

키워드

Glenohumeral internal rotation; Manual stabilization; Pressure biofeedback stabilization; Reliability

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