Accuracy of visual estimation of shoulder abduction by expert physiotherapists: a comparative study using 3D motion capture.

A comparative study evaluated how accurately expert physiotherapists can visually estimate shoulder abduction range of motion when measured against 3D motion capture as a gold standard. The findings have direct implications for clinical assessment reliability, as visual estimation is commonly used in practice despite its potential for measurement error. PT professionals may find the results relevant when considering whether instrumented measurement tools should supplement or replace visual judgment in shoulder evaluations.

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