Table 3.

Change in physical function and physical activity

	Intervention			Usual care			Group	Time	Group ×Time
	Baseline	3 months	6 months	Baseline	3 months	6 months
Grip strength (kg)	28.7 ± 9.7	28.1 ± 10.4	28.9 ± 9.7	27.8 ± 8.1	27.1 ± 8.1	27.1 ± 8.5	0.75	0.27	0.66
CS-30 (rep)	12.5 ± 3.7	15.2 ± 3.7***	17.0 ± 4.7***†††	13.6 ± 4.2	13.7 ± 3.6	14.8 ± 4.4**†	0.45	< 0.001	< 0.001
6MWT (m)	427.1 ± 84.9	453.9 ± 96.4***	461.0 ± 95.3***	445.5 ± 96.9	447.6 ± 99.9	448.8 ± 100.7	0.99	< 0.001	< 0.01
Average daily number of steps (steps/day)	4820.5 ± 2698.6	5710.7 ± 2698.8	5316.8 ± 2254.5	5817.9 ± 3761.7	5032.5 ± 3177.4	5011.3 ± 3679.7	0.89	0.29	0.009
Average daily number of moderate steps (steps/day)	3577.1 ± 1762.8	3959.4 ± 1919.8	4130.5 ± 2236.3	4225.7 ± 3089.1	3702.8 ± 2671.8	3793.8 ± 3218.6*	0.96	0.99	0.014
Average daily energy expenditure (kcal)	255.7 ± 86.5	278.4 ± 97.9	282.2 ± 106.8	314.1 ± 157.2	263.1 ± 149.9**	259.6 ± 184.2**	0.96	0.47	0.002
Average daily moderate activity time (minutes/day)	37.9 ± 15.8	42 ± 19.2	43.3 ± 20.4	47.4 ± 32.1	41.7 ± 29.3	42.8 ± 35.5	0.82	0.94	0.014

Values are given as mean ± standard deviation

Group×Time is an interaction from a two-way repeated-measures analysis of the effect of time from baseline to 6 months

CS-30 30-s chair-stand test, rep repetitions, 6MWT 6-min walk test

*p < 0.05 vs. baseline within-group difference

**p < 0.01 vs. baseline within-group difference

***p < 0.001 vs. baseline within-group difference

†p < 0.05 vs. month 3 within-group difference

†††p < 0.001 vs. month 3 within-group difference