Quantification of Gait Stability During Incline and Decline Walking: The Responses of Required Coefficient of Friction and Dynamic Postural Index

Table 3

Postural stability index during incline walking.

Degree of inclination (°)	APSI	MLSI	VSI	DPSI
	(Mean ± SD)	(Mean ± SD)	(Mean ± SD)	(Mean ± SD)
0.0	0.822 ± 0.183	0.608 ± 0.078	7.267 ± 0.623	4.725 ± 0.738
5.0	1.217 ± 0.152	0.567 ± 0.214	7.211 ± 0.632	4.347 ± 0.449
7.5	1.238 ± 0.152	0.510 ± 0.146	7.165 ± 0.293	4.200 ± 0.531
10.0	1.817 ± 0.202	1.209 ± 0.370	6.670 ± 0.657	4.096 ± 0.427

represent significantly different in comparison to level walking with p-value <0.05.