Evaluation of selected indices of gait asymmetry for the assessment of running asymmetry.

Background: The methods of running asymmetry evaluation are not as highly developed as the methods of gait evaluation.

Research Question: Which asymmetry indices used in the gait analysis best characterize the asymmetry of the running movement?

Methods: The kinematics of the sprint in a straight run over a distance of 50 m was evaluated using the X-sens system. Three indices (Ia, IS, SA) were based on discrete values from the first point of contact of the foot with the ground (1% of the running cycle phase) and were called discrete coefficients.