Table 2.

Parameters of biomechanical properties of colon.

	Con	DM	T1	T2
Opening angle (degree)	101.45 ± 8.84	223.66 ± 21.93∗∗	159.17 ± 12.31∗#	195.341 ± 17.22∗
Inner residual strain (unitless)	−0.21 ± 0.02	−0.29 ± 0.03∗	−0.26 ± 0.02∗	−0.27 ± 0.03∗
Outer residual strain (unitless)	0.12 ± 0.02	0.22 ± 0.03∗∗	0.12 ± 0.01##	0.26 ± 0.03∗∗
Circumferential constant α (kPa)	1.13 ± 0.16	2.12 ± 0.28∗∗	1.87 ± 0.3162∗#	2.61 ± 0.38∗∗
Longitudinal constant α (kPa)	25.48 ± 4.12	52.34 ± 8.73∗∗	36.13 ± 2.48∗#	44.76 ± 5.59∗∗

Compared with Con: ^∗ P < 0.05, ^∗∗ P < 0.01; compared with DM: ^# P < 0.05, ^## P < 0.01.