Gordon J. Alderink, Sylvia Õunpuu
A review of the methods and applications of marker-based and markerless-based motion capture and inertial measurement units for clinical gait analysis is offered to provide readers with an important historical and legacy-guided perspective. Advantages and limitations of these methods are delineated in light of Cappozzo's 'considerations on clinical gait evaluation' and Brand and Crowninshield's 'comment on criteria for patient evaluation tools'. Critical summaries of each manuscript that make up this Special Issue reflect consideration of the notable comments by the legacy biomechanists who had the insights to frame important issues.