Paul W Stratford1, Amy V Wainwright2, Deborah M Kennedy3. 1. School of Rehabilitation Science ; Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton ; Department of Surgery. 2. Holland Orthopaedic & Arthritic Centre, Sunnybrook Health Sciences Centre ; Department of Physical Therapy, University of Toronto, Toronto, Ont. 3. School of Rehabilitation Science ; Holland Orthopaedic & Arthritic Centre, Sunnybrook Health Sciences Centre ; Department of Physical Therapy, University of Toronto, Toronto, Ont.
Abstract
PURPOSE: Standardizing and improving the validity of range of motion (ROM) measurements is of clinical relevance to physiotherapists. The purpose of this study was to assess whether end-digit preference exists in the measurement of knee ROM in people after knee replacement. METHOD: Following total knee replacement, 100 people underwent active-assisted knee ROM measurements using a goniometer calibrated in 1° increments. RESULTS: The data showed strong end-digit preferences for 0s and 5s (p<0.001). CONCLUSIONS: End-digit preference does exist in the measurement of knee ROM. This has the potential to influence both the validity of ROM measurements and clinical decisions.
PURPOSE: Standardizing and improving the validity of range of motion (ROM) measurements is of clinical relevance to physiotherapists. The purpose of this study was to assess whether end-digit preference exists in the measurement of knee ROM in people after knee replacement. METHOD: Following total knee replacement, 100 people underwent active-assisted knee ROM measurements using a goniometer calibrated in 1° increments. RESULTS: The data showed strong end-digit preferences for 0s and 5s (p<0.001). CONCLUSIONS: End-digit preference does exist in the measurement of knee ROM. This has the potential to influence both the validity of ROM measurements and clinical decisions.
Entities:
Keywords:
bias; measurement; reproducibility of results
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