表 2.

白内障患者手术前后双足受力差异幅度比较

Comparisons on the magnitude of laterality before and after cataract surgery

Region	PP△/Pa			I△/(N·s)
	Pre	Post		Pre	Post
M (P25, P75). PP△, the peak pressure of the corresponding region at the right side minus the value at the left side; I△, the impulse of the corresponding region at the right side minus the value at the left side; Pre, at pre-operative phase; post, at post-operative phase; T1, 1st toe; T2-5, 2nd to 5th toe; M1 to M5，1st to 5th metatarsal heads; MF, midfoot; HM, heel medial; HL, heel lateral. *P＜0.05, vs. the difference in parameter of plantar pressure at pre-operative phase.
T1	-6.4 (-19.1, -1.1)	-3.4 (-15.4, 0.5)		-1.0 (-2.5, -0.3)	-0.7 (-1.9, -0.2)
T2-5	-0.2 (-5.4, 3.3)	-0.5 (-3.8, 3.3)		0.2 (-1.1, 0.4)	0.0 (-0.6, 0.5)
M1	3.0 (-2.3, 13.8)	8.2 (1.2, 17.4)*		0.7 (-0.5, 2.1)	1.4 (0.3, 3.5)*
M2	6.5 (-4.6, 20.6)	10.2 (0.8, 38.9)*		1.5 (-1.0, 3.3)	1.8 (0.2, 5.8)*
M3	-7.8 (-15.2, -1.1)	-8.3 (-19.4, 4.6)		-1.8 (-4.0, 0.8)	-1.3 (-4.6, 1.5)
M4	-2.8 (-10.1, 3.1)	-0.4 (-6.9, 3.4)		0.0 (-2.2, 1.8)	0.0 (-1.6, 0.9)
M5	-5.3 (-11.0, -0.4)	-6.8 (-25.2, -2.7)*		-1.6 (-2.7, -0.3)	-2.1 (-5.6, -1.0)*
MF	0.9 (-0.6, 3.9)	1.4 (-1.0, 4.4)		0.1 (-0.2, 0.5)	0.2 (-0.3, 0.8)
HM	9.6 (4.5, 18.6)	10.2 (0.8, 17.8)		2.2 (0.8, 4.2)	2.0 (0.8, 3.6)
HL	-4.7 (-11.4, 0.0)	-7.1 (-15.8, 0.0)		-1.0 (-2.3, 0.0)	-0.8 (-2.2, -0.1)