Concurrent validity of inclinometer measures of scapular and clavicular positions in arm elevation
2018
ABSTRACTObjective: To assess concurrent validity, between and within-day reliability of scapular and clavicular digital inclinometer measures. Design: Test–retest and concurrent validity. Setting: Laboratory. Participants: Twenty-three participants with and without shoulder symptoms. Main Outcome Measures: Static positions of scapular upward rotation, anterior/posterior tilting and clavicular elevation were measured between days with an inclinometer and compared to a 3-dimensional electromagnetic tracking system in different positions of sagittal plane humeral elevation (neutral, 30°, 60°, 90°, 120°). The two methods were compared using a two-way Analysis of Variance. Linear regressions at each arm position were also performed to further assess concurrent validity. Results: Between-day reliability demonstrated Intraclass Correlation Coefficients ≥ 0.50 for all comparisons. There were statistically significant differences between methods or interactions of method and arm position for clavicle elevation (p ...
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