Table 3. Mean values (1: strongly disagree; 2: disagree; 3: neutral; 4: agree; 5: strongly agree) and standard deviations of the questionnaire results.

Activities and foot models	Level normal speed		Level fast speeda		Camber PS higher		Camber IS higher
	Echelon	Esprit	Echelon	Esprit	Echelon	Esprit	Echelon	Esprit
Q1. This ankle makes me feel stable when I swing my sound leg.	4.8(0.4)	3.0(1.4)	4.5(1.0)	3.0(1.6)	4.6(0.5)	3.0(1.4)	4.4(0.5)	2.8(1.5)
Q2. This ankle makes my prosthesis hard to swing as I walk.	1.6(0.5)	3.2(1.8)	1.8(0.5)	2.7(1.5)	1.8(0.7)	2.6(1.1)	2.0(0.7)	2.4(0.9)
Q3. This ankle makes me feel off balance during walking.	1.6(0.9)	3.0(1.0)	1.5(1.0)	3.3(1.0)	1.4(0.5)	3.6(1.1)	1.4(0.5)	3.6(1.1)
Q4. This ankle does not provide enough motion and limit my movement.	1.6(0.9)	4.6(0.9)	1.5(1.0)	4.8(0.5)	1.8(0.8)	4.4(0.9)	1.4(0.5)	4.4(0.9)
Q5. Overall, this ankle makes me feel safe and confident during walking.	4.6(0.5)	2.2(0.8)	4.8(0.5)	2.3(1.0)	4.6(0.5)	2.2(0.8)	4.6(0.5)	2.2(0.8)

PS = prosthetic side, IS = intact side.

^a One subject rated “not applicable” in all fast speed walking questions.