Is abdominal wall contraction important for normal voiding in the female rat?

BMC Urology

Table 1 Voiding-associated parameters in intact and botulinum-toxin prepared free voiding rats.

Group	n		EMG abd	EMG peri	ICI	VV	Qave	BP	VVR
			(ratio)	(ratio)	min	ml	ml/sec	mmHg	mmHg
FV	6	mean	1.437	1.041	60.0	1.8	0.17	131	1.5
		SEM	0.167	0.102	14.6	0.2	0.03	12	7.7
FV+BTX	8	mean	0.936	1.095	59.0	1.1	0.11	151	2.7
		SEM	0.041	0.148	18.0	0.2	0.02	7.3	1.5
		p	*0.003*	n.s.	n.s.	*0.036*	*0.048*	n.s.	n.s.

FV – intact free voiding rats. FV+BTX – botulinum toxin prepared rats. EMG abd – ratio of rectus abdominis voiding-associated EMG intensity to baseline. EMG peri – ratio of perineal voiding-associated EMG intensity to baseline. ICI – intercontraction interval (minutes). VV – per-void volume (ml). Qave – average voiding urine flow rate (ml/sec). BP – blood pressure. VVR – voiding-associated viscerovascular reflex. Values are means, with standard error of measurement (SEM). Statistical comparisons made by t-test, p < 0.05 significant.

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