Table 2 Average (AVE) and maximum (Max) potentials at maximum opening (O_max) and MVC in the healthy, DD, DD + M, and M groups.

Healthy group

16.56 ± 3.67^a

113.47 ± 27.54^c

15.73^d

19.84 ± 4.51

174.84 ± 47.63

12.81

DD group

15.94 ± 3.48^b

66.76 ± 30.93

28.19

18.06 ± 4.09

98.33 ± 52.35

22.53

DD + M group

23.46 ± 9.88 ^{a, b}

89.65 ± 41.01

30.99 ^d

37.57 ± 17.01

124.68 ± 60.45

38.23

M group

25.62 ± 10.2^{a, b}

58.88 ± 33.83^c

67.18 ^d

48.18 ± 24.57

92.12 ± 61.57

87.81

P-value

< 0.001*

0.023*

< 0.001*

< 0.001*

0.039*

< 0.001*

Effect size f

0.51

0.72

0.99

0.94

0.68

0.99

Power (1-β err prob)

0.80

0.94

0.99

0.99

0.88

0.99