Table 3 Comparison of the mechanical properties of respiratory measurement using IOS for men and women

Zrs5, (kPa/L/s)

0.37 ± 0.11

0.45 ± 0.13

<0.001

0.53 ± 0.14

0.61 ± 0.18

R5, (kPa/L/s)

0.35 ± 0.10

0.43 ± 0.12

<0.001

0.50 ± 0.13

0.57 ± 0.15

R10,(kPa/L/s)

0.32 ± 0.09

0.38 ± 0.09

<0.001

0.44 ± 0.11

0.47 ± 0.11

R15,(kPa/L/s)

0.30 ± 0.07

0.34 ± 0.08

<0.001

0.40 ± 0.10

0.42 ± 0.09

R20,(kPa/L/s)

0.30 ± 0.07

0.35 ± 0.08

<0.001

0.40 ± 0.09

0.42 ± 0.10

R25,(kPa/L/s)

0.30 ± 0.08

0.36 ± 0.09

<0.001

0.41 ± 0.08

0.42 ± 0.09

R35,(kPa/L/s)

0.33 ± 0.07

0.39 ± 0.09

<0.001

0.43 ± 0.08

0.45 ± 0.09

Grs, (L/s/kPa)

2.78 ± 0.64

2.26 ± 0.50

<0.001

1.92 ± 0.45

1.61 ± 0.33

sGrs, (s⁻¹ · kPa⁻¹)

0.76 ± 0.19

0.68 ± 0.17

0.007

0.68 ± 0.17

0.63 ± 0.17

Gz, (L/s/kPa)

2.94 ± 0.75

2.40 ± 0.63

<0.001

2.04 ± 0.55

1.76 ± 0.44

sGz, (s⁻¹ · kPa⁻¹)

0.80 ± 0.22

0.72 ± 0.19

0.031

0.72 ± 0.19

0.69 ± 0.21

X5,(kPa/L/s)

−0.08 ± 0.05

−0.13 ± 0.08

<0.001

−0.15 ± 0.07

−0.22 ± 0.13

X10,(kPa/L/s)

−0.03 ± 0.04

−0.05 ± 0.06

<0.001

−0.07 ± 0.06

−0.12 ± 0.09

X15,(kPa/L/s)

0.00 ± 0.04

−0.02 ± 0.05

<0.001

−0.04 ± 0.06

−0.08 ± 0.08

X20,(kPa/L/s)

0.03 ± 0.03

0.02 ± 0.04

0.002

0.03 ± 0.18

−0.03 ± 0.06

X25,(kPa/L/s)

0.07 ± 0.03

0.06 ± 0.04

0.060

0.05 ± 0.04

0.02 ± 0.05

X35,(kPa/L/s)

0.12 ± 0.04

0.11 ± 0.04

0.646

0.09 ± 0.04

0.09 ± 0.04

Fres,(Hz)

14.4 ± 4.7

17.7 ± 6.0

<0.001

19.4 ± 7.4

23.5 ± 9.3