Effects of extended powered knee prosthesis stance time via visual feedback on gait symmetry of individuals with unilateral amputation: a preliminary study

Table 3 ANOVA results with the inclusion/exclusion of each identified outlier trial

Response Measure	Included/excluded outlier trial	Device main effect	Feedback main effect	Interaction effect
Perceived difficulty	Included	0.157	<0.001	0.639
Perceived difficulty	Excluded	0.300	<0.001	0.507
Prosthesis-side peak braking force	Included	0.541	0.272	0.866
Prosthesis-side peak braking force	Excluded	0.607	0.252	0.839
Intact-side peak hip power	Included	0.864	0.080	0.997
Intact-side peak hip power	Excluded	0.840	0.074	0.979

In total, we identified 3 outlier trials in 3 response variables (i.e. perceived difficulty, prosthesis-side peak braking force, intact-side peak hip power). However, the inclusion/exclusion of these identified outlier trials did not affect the significance of our results (below), so we did not exclude any trials. Because these outlier trials were not outliers in any other response variable, the removal of identified outliers may remove valuable information from this study as a whole

ISSN: 1743-0003