Ankle kinematics for Kid-1 while playing the race game in (A, C) DP and (B, D) IE directions at (A, B) admission and (C, D) discharge. Blue (red) kinematics refer to DP (IE) ankle movements. For visual comparison, the amplitude of the DP movement (blue trace) in IE direction at discharge was halved. Note the decrease in game duration in the DP direction at discharge.