Table 3.

Comparison of various states of pelvic floor structure in normal nulliparous women.

Index	Resting state	Valsalva state	Anus contraction state	P
BSD (mm)	29.533 ± 3.665	20.967 ± 4.115	–	<.001
CSD (mm)	36.767 ± 3.137	34.667 ± 3.055	–	<.001
ASD (mm)	20.967 ± 3.243	18.667 ± 3.089	–	<.001
UOA (°)	10.300 ± 8.370	6.000 ± 9.158	–	.063
PUA (°)	114.700 ± 9.735	124.700 ± 8.347	–	<.001
Anteroposterior diameter of the hiatus (mm)	45.810 ± 1.971	48.303 ± 1.517	41.733 ± 1.975	<.001
Young’s modulus of right PR (kPa)	30.770 ± 3.535	–	62.600 ± 3.987	<.001
Young’s modulus of left PR (kPa)	30.997 ± 3.558	–	63.037 ± 3.470	<.001

Bold indicates data is statistically significant.

ASD = distance from the anorectal junction to the lower edge of the pubic symphysis, BND = bladder neck descent, BSD = distance from the bladder neck to the lower edge of the pubic symphysis, CSD = distance from the cervix to the lower edge of the pubic symphysis, PR = puborectalisis muscle, PUA = posterior urethrovesical angle, UA = rotation angle of the urethra, UOA = obliquity angle of the urethra.