The intervention group ( n = 100 ) showed significant improvement relative to the control group ( n = 95 ) in functional mobility ( mean SPPB scores for intervention group : 6.2 [ SD , 2.7 ] at baseline , 7.2 [ SD , 3 ] at 6 months ; control group : 6.0 [ SD , 2.8 ] at baseline , 6.2 [ SD , 3 ] at 6 months ; and between-group differences : 0.8 [ 95 % CI , 0.4 to 1.2 ] , P < .001 ; mean AM-PAC mobility scores for intervention group : 56.2 [ SD , 7.3 ] at baseline , 58.1 [ SD , 7.9 ] at 6 months ; control group : 56 [ SD , 7.1 ] at baseline , 56.6 [ SD , 8.1 ] at 6 months ; and between-group difference , 1.3 [ 95 % CI , 0.2 to 2.4 ] , P = .03 ; and mean AM-PAC daily activity scores for intervention group : 57.4 [ SD , 13.7 ] at baseline , 61.3 [ SD , 15.7 ] at 6 months ; control group : 58.2 [ SD , 15.2 ] at baseline , 58.6 [ SD , 15.3 ] at 6 months ; and between-group difference , 3.5 [ 95 % CI , 0.9 to 6.0 ] , P = .03 ) .