Tanya Anne Mackenzie1, Alya H Bdaiwi2, Lee Herrington3, Ann Cools4. 1. Salford University, Health, Sports and Rehabilitation Sciences, Manchester, United Kingdom(∗). Electronic address: t.a.mackenzie@edu.salford.ac.uk. 2. Salford University, Health, Sports and Rehabilitation Sciences, Manchester, United Kingdom(†). 3. Salford University, Health, Sports and Rehabilitation Sciences, Manchester, United Kingdom(‡). 4. Department of Rehabilitation Science and Physiotherapy, Ghent University, Ghent, Belgium(¶).
Abstract
BACKGROUND: Real-time ultrasound (RTUS) has been suggested as a reliable measure of acromiohumeral distance. However, to date, no vigorous assessment and reporting of inter-rater reliability of this method has been performed with the shoulder in a neutral position or with active and passive arm abduction. OBJECTIVE: To assess intrasession inter-rater reliability of using RTUS to measure acromiohumeral distance with the shoulder in a neutral position and with 60° active and passive abduction. STUDY DESIGN: Inter-rater intrasession reliability of repeated measures. SETTING: Human performance laboratory. PARTICIPANTS: Twenty persons (12 male and 8 female) with an average age of 29.86 years (standard deviation, 7.8). METHOD: In an inter-rater, intrasession study, RTUS was used to measure the acromiohumeral distance with the shoulder in a neutral position and with 60° of both active and passive abduction. MAIN OUTCOME MEASURE: Acromiohumeral distance. RESULTS: Intraclass correlation coefficient (ICC)2.1 scores ranged between 0.65-0.88 (standard error of the mean = 0.81-1.2 mm and minimal detectable differences with 95% confidence = 2.2-2.3 mm) for inter-rater intrasession reliability. CONCLUSION: RTUS was found to have fair to good inter-rater reliability as a tool to measure acromiohumeral distance with the shoulder in a neutral position and with 60° of both active and passive arm abduction.
BACKGROUND: Real-time ultrasound (RTUS) has been suggested as a reliable measure of acromiohumeral distance. However, to date, no vigorous assessment and reporting of inter-rater reliability of this method has been performed with the shoulder in a neutral position or with active and passive arm abduction. OBJECTIVE: To assess intrasession inter-rater reliability of using RTUS to measure acromiohumeral distance with the shoulder in a neutral position and with 60° active and passive abduction. STUDY DESIGN: Inter-rater intrasession reliability of repeated measures. SETTING:Human performance laboratory. PARTICIPANTS: Twenty persons (12 male and 8 female) with an average age of 29.86 years (standard deviation, 7.8). METHOD: In an inter-rater, intrasession study, RTUS was used to measure the acromiohumeral distance with the shoulder in a neutral position and with 60° of both active and passive abduction. MAIN OUTCOME MEASURE: Acromiohumeral distance. RESULTS: Intraclass correlation coefficient (ICC)2.1 scores ranged between 0.65-0.88 (standard error of the mean = 0.81-1.2 mm and minimal detectable differences with 95% confidence = 2.2-2.3 mm) for inter-rater intrasession reliability. CONCLUSION: RTUS was found to have fair to good inter-rater reliability as a tool to measure acromiohumeral distance with the shoulder in a neutral position and with 60° of both active and passive arm abduction.
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