Vertical ground reaction force parameters
Based on the study of da Fonseca et al. (2009) we assessed VGRF parameters [First (FPF) and second Peak Force (SPF): the first and second maximum peak of VGRF during the stance phase in straight walking after the heel contact. Mid-Support Force (MSF): the minimum peak of VGRF between the first and second peak forces. Weight Acceptance Rate (WAR): the magnitude of the first peak force divided by the time at which it occurred. Push-Off Rate (POR): the magnitude of the second peak force divided by the time from the second peak force until the end of the stance phase [