RESULTS	The intervention group significantly improved compared with control group on standing balance ( mean difference = 1.52 seconds , 95 % CI 0.10-2 .96 , p = .04 ) , sit-to-stand test ( mean difference = -3.43 seconds , 95 % CI -5.23 to -1.64 , p < .001 ) , 4-m walk ( mean difference = -0.50 seconds , 95 % CI -0.72 to -0.28 , p < .001 ) , and one-legged stand with eyes closed ( mean difference = 1.93 seconds , 95 % CI 0.40-3 .46 , p = .02 ) .\