Figure 2From: Reliability of spatiotemporal and kinetic gait parameters determined by a new instrumented treadmill system Illustration of a typical vertical ground reaction force–time trace obtained with the instrumented treadmill. The magnitude and timing of the vertical ground reaction force braking peak (P1), and final propulsive peak (P2) were calculated for comparison across the three test sessions. Time to peak force was expressed as a percentage of the stance phase duration.Back to article page