Measurement properties of observational gait analysis in patients with stroke: a systematic review.

[Purpose] This study aimed to conduct a systematic review the measurement properties of standardized observational gait analysis (OGA) tools for patients with stroke. [Participants and Methods] A systematically search was conducted in PubMed, Cochrane Library, and PEDro databases using stroke- and gait-related keywords. No time restrictions were applied. Studies evaluating OGA using gait analysis tools were included. The methodological quality of the selected studies was assessed using the COSMIN Risk of Bias checklist. [Results] A total of eighteen studies utilizing four gait analysis tools were identified. Sixteen studies employed video-based measurements. The GAIT and WGS tools were assessed for reliability, validity, responsiveness, and interpretability. However, the overall methodological quality of these assessments was not rated as high. [Conclusion] Video-based OGA holds significant potential for clinical applications, but several challenges remain to be met. Standardizing video recording protocols and measurement methods are essential and additional research is needed to determine the qualifications and expertise of the evaluators. Although some studies have shown video-based OGA are effective, determining clinically relevant indicators, such as the Minimal Clinically Important Difference (MCID), is necessary to enhance its applicability in clinical practice.