Table 1.

Location of anorectal angle (ARA) at rest and pelvic floor contraction, HDM-high definition manometry, US-ultrasound, MRI-magnetic resonance imaging (*= No statistical difference between delta cranial movement recorded by HDM & US). MRI also detected cranial and ventral movement of the ARA that were similar to the one made by US.

Distance (cm) moved by ARA in cranial and ventral directions
	CRANIAL			VENTRAL
	HDAM	US	MRI	US	MRI
REST	2.5	2.7	1.8	3.6	4.8
CONTRACTION	3.2	3.3	2.4	2.5	3.7
DELTA	0.7 *	0.5	0.7	1.1	1.1