Table 2 Summary for muscle strength (maximal voluntary contraction: MVC), six-minute walk test (6-MWT), Time Up and go test (TUGT) and sit to stand test (STS30) data in control (CG) and neuromuscular electrical stimulation training (NSTG) groups before and after the intervention period (Mean ± SD)

MVC (N)

379.9 ± 31.5

398.3 ± 19.1

401.2 ± 24.9

495.3 ± 20.3^#*

Interaction P < 0.01

Training P < 0.01

Group P < 0.01

0.71

0.67

0.52

6-MWT (m)

513. 2 ± 79.2

500.2 ± 55.7

510.3 ± 56.4

548.9 ± 53.3^#*

Interaction P < 0.01

Training P = 0.02

Group P < 0.01

0.64

0.33

0.42

TUGT (s)

6.03 ± 0.67

6.06 ± 0.85

6.2 ± 0.95

5.5 ± 0.48#*

Interaction P < 0.01

Training P < 0.01

Group P = 0.04

0.60

0.24

0.35

STS30 (A.U)

12.2 ± 1.7

13.1 ± 1.2

12.6 ± 1.3

15.8 ± 1.8#*

Interaction P = 0.02

Training P < 0.01

Group P = 0.03

0.42

0.82

0.63