Effect of training on changes in step cycle structure during treadmill locomotion at 0.4 m/s. Left and right panels respectively represent the left and right HL. Changes in cycle (A, D), stance (B, E), and swing (C, F) duration between the first and the 21st day after spinalization in untrained and trained cats are illustrated. Gray dotted lines report the values obtained at the intact state and 21 d after hemisection (H21). *p < 0.05, statistical differences between delays.