Table 2 MMPs of PF and lumbar muscles of both sides and sexes.

From: Between-sexes differences in lumbopelvic muscle mechanical properties of non-climacteric adults: a cross-sectional design

  

Side

Women group (n = 35)

Men group (n = 35)

Between-sexes difference

p-value

PF

Frequency (Hz)

Right

14.97 ± 2.09

12.19 ± 0.98

2.78 (2.01 ; 3.56)

 < 0.001*

Left

15.39 ± 2.08

12.55 ± 1.43

2.84 (1.99 ; 3.69)

 < 0.001*

Stiffness (N/m)

Right

223.203 ± 68.11

143.63 ± 21.83

79.57 (55.45 ; 103.70)

 < 0.001*

Left

231.23 ± 61.18

151.11 ± 26.81

80.11 (57.58 ; 102.65)

 < 0.001*

Decrement

Right

1.04 ± 0.22

0.92 ± 0.22

0.12 (0.01 ; 0.22)

0.029*

Left

1.05 ± 0.21

0.93 ± 0.22

0.13 (0.02 ; 0.23)

0.016*

Relaxation (ms)

Right

18.05 ± 2.71

23.45 ± 3.85

-5.40 (-6.99 ; -3.81)

 < 0.001*

Left

17.41 ± 2.52

22.98 ± 3.66

-5.58 (-7.07 ; -4.08)

 < 0.001*

Creep (De)

Right

0.96 ± 0.10

1.16 ± 0.31

-0.20 (-0.31 ; -0.09)

 < 0.001*

Left

0.94 ± 0.96

1.15 ± 0.26

-0.22 (-0.31 ; -0.12)

 < 0.001*

Lumbar

Frequency (Hz)

Right

13.40 ± 1.53

14.22 ± 1.69

-0.82 (-1.59 ; -0.05)

0.036*

Left

13.24 ± 1.59

14.46 ± 1.56

-1.22 (-1.97 ; -0.47)

0.002*

Stiffness (N/m)

Right

212.83 ± 54.00

244.71 ± 49.22

-31.89 (-56.53 ; -7.24)

0.012*

Left

205.69 ± 54.56

243.40 ± 52.31

-37.71 (-63.21 ; -12.22)

0.004*

Decrement

Right

1.07 ± 0.23

1.11 ± 0.28

-0.04 (-0.17 ; 0.08)

0.485

Left

1.03 ± 0.27

1.09 ± 0.42

-0.06 (-0.23 ; 0.11)

0.493

Relaxation (ms)

Right

22.67 ± 4.21

21.15 ± 4.60

1.52 (-0.58 ; 3.63)

0.153

Left

23.04 ± 4.23

20.58 ± 4.17

2.46 (0.46 ; 4.47)

0.017*

Creep (De)

Right

1.30 ± 0.26

1.27 ± 0.27

0.04 (-0.09 ; 0.16)

0.582

Left

1.31 ± 0.25

1.22 ± 0.26

0.09 (-0.03 ; 0.21)

0.137

  1. Values expressed as means ± SD and between means difference (95%CI). *Significant difference (P < 0.05) between groups. Abbreviations: PF: pelvic floor.