dAIH + walking increased walking distance more than dAIH after 1 day ( MD 67.7 m , 95 % CI 1.3-134 .1 m , p = 0.046 ) , 5 days ( MD 107.0 m , 95 % CI 40.6-173 .4 m , p = 0.002 ) , and 1-week follow-up ( MD 136.0 m , 95 % CI 65.3-206 .6 m , p < 0.001 ) .