Feasibility of progressive strength training shortly after hip fracture surgery

Table 2 Changes in function, knee-extension strength, and weight loads within six week of rehabilitation (n = 31)

	Baseline	6 wk	Percentagechange	P value
New mobility score (0-9)	3.7 ± 1.1	5.9 ± 1.6	59	< 0.001
Barthel (0-20)	18 (17-20)	20 (18-20)	11	< 0.001
Balance, tandem test (0-30)	30 (22-30)	30 (29-30)	0	< 0.001
Timed up and go test, seconds	20.2 ± 6.0	13.9 ± 3.2	-31	< 0.001
Ten-meter fast speed walk, m/s	0.74 ± 0.19	0.99 ± 0.2	34	< 0.001
Six-min walk, meters	200.6 ± 79.5	322.8 ± 68.5	61	< 0.001
Short-form 36, physical component summary	33.8 ± 9	37.1 ± 8	10	0.035
Short-form 36, mental component summary	45.5 ± 11.1	46.4 ± 9.6	2	0.639
Fractured knee-extension strength, Nm/kg	0.49 ± 0.16	0.82 ± 0.32	67	< 0.001
Non-fractured knee-extension strength, Nm/kg	0.82 ± 0.28	0.99 ± 0.34	21	< 0.001
Weight loads in kilograms (kg), fractured knee-extension:	First session	Last session
15 RM sessions, n: 34	3.3 ± 1.5	5 ± 1.7	52	< 0.001
12 RM sessions, n: 32	5.3 ± 1.9	6.6 ± 2.3	25	< 0.001
10 RM sessions, n: 31	6.8 ± 2.4	7.7 ± 2.6	13	< 0.001
Weight loads (kg), bilateral leg press:
15 RM training sessions	50.3 ± 13.4	90.8 ± 40.0	81	< 0.001
12 RM training sessions	91.2 ± 38.8	108.9 ± 47.7	19	< 0.001
10 RM training sessions	108.9 ± 47.7	121.9 ± 54.0	12	< 0.001

Data are presented as mean ± SD, as medians (25%-75% quartiles) or as percentages. RM: Repetition maximum.