Ten-Meter Walk time improved with dAIH vs dSHAM after 1 day ( mean difference [ MD ] 3.8 seconds , 95 % confidence interval [ CI ] 1.1-6 .5 seconds , p = 0.006 ) and 2 weeks ( MD 3.8 seconds , 95 % CI 0.9-6 .7 seconds , p = 0.010 ) .