TABLE 1.

The effect of increasing distention induced by outflow pressure on CMC frequency and diameter of the colon.

	0 min	10 min	20 min	30 min	40 min
Frequency of CMCs (cpm) (N = 7)	0	0.19 ± 0.07	0.33 ± 0.07	0.49 ± 0.03	0.44 ± 0.04a
Diameter (mm) (N = 7)	1.66 ± 0.06	1.73 ± 0.05	1.92 ± 0.06	2.05 ± 0.08	2.21 ± 0.11b
CMC pressure amplitude (cmH2O) (N = 7)	0	3.70 ± 0.75	5.94 ± 1.19	7.82 ± 1.52	8.33 ± 1.14c
Outflow pressure (cmH2O) (N = 7)	0	1.44 ± 0.13	3.46 ± 0.20	5.37 ± 0.31	6.86 ± 0.24d

^aP = 0.017, ^cP = 0.048, ^dP < 0.001 compared to the group at 10 min. ^bP < 0.001 compared to the group at 0 min. Data are presented as means ± SEM. P values were determined by a one-way ANOVA and Tukey’s post hoc test.