Table 5.

Mean leg joint angles for the different situations and feet

			Prosthetic TT	Prosthetic TF	Sound TT	Sound TF	non-Amp
Δ ankle angle	Down (KSF on/off)	Everyday Feet	4.9 ± 3.0	3.9 ± 5.6 / 3.8 ± 7.2	9.6 ± 6.2	4.6 ± 5.4 / 3.9 ± 5.4	10.1 ± 1.2
		Meridium	8.5 ± 1.0	9.5 ± 1.2 / 9.7 ± 1.3	9.2 ± 1.1	10.7 ± 0.7 / 10.7 ± 0.7
		Elan	7.9 ± 3.0	3.7 ± 4.0 / 5.2 ± 4.6	8.5 ± 1.9	5.6 ± 4.3 / 9.7 ± 5.0
		Proprio	2.7 ± 1.9	−0.6 ± 2.8 / 1.2 ± 3.6	8.4 ± 3.7	4.1 ± 6.2 / 8.0 ± 4.7
		TSA	11.7 ± 2.8	6.1 ± 3.6 / 9.2 ± 2.8	11.7 ± 1.8	6.3 ± 4.4 / 9.0 ± 5.0
		Raize	12.4 ± 2.2		11.5 ± 1.4
	Up	Everyday Feet	−1.9 ± 0.8	−5.2 ± 3.9	−12.0 ± 4.7	−9.8 ± 5.6	−10.1 ± 1.3
		Meridium	−9.1 ± 0.7	−9.7 ± 1.9	−9.5 ± 1.7	−9.4 ± 1.4
		Elan	−3.3 ± 3.0	−7.4 ± 1.5	−11.3 ± 1.1	−11.4 ± 1.8
		Proprio	−3.8 ± 1.6	−4.4 ± 1.1	−12.6 ± 1.7	−11.0 ± 1.7
		TSA	−7.5 ± 5.1	−0.8 ± 0.7	−10.6 ± 2.2	−12.6 ± 3.2
		Raize	−4.4 ± 4.6		−12.9 ± 4.3
Δ knee angle	Down (KSF on/off)	Everyday Feet	−8.9 ± 7.9	−15.2 ± 8.1 / -15.5 ± 11.5	−4.3 ± 9.3	−14.5 ± 12.3/ -11.0 ± 12.1	−0.9 ± 2.1
		Meridium	−2.2 ± 2.5	−1.8 ± 2.1 / -0.5 ± 1.3	−0.3 ± 1.7	0.3 ± 1.1 / 0.4 ± 1.1
		Elan	−7.9 ± 2.5	−15.0 ± 5.7 / -9.9 ± 11.0	−1.8 ± 4.0	−14.6 ± 5.7 / -4.0 ± 6.0
		Proprio	−13.2 ± 6.9	−22.2 ± 8.7 / -14.7 ± 15.7	−4.5 ± 6.8	−17.4 ± 10.6 / -7.3 ± 9.9
		TSA	−1.8 ± 2.0	−8.1 ± 3.7 / -2.9 ± 4.2	−0.4 ± 2.7	−13.7 ± 8.7 / -6.5 ± 8.8
		Raize	−1.7 ± 2.6		0.4 ± 1.6
	Up	Everyday Feet	2.2 ± 14.6	0.3 ± 0.4	−4.1 ± 6.8	−2.0 ± 4.2	−1.7 ± 1.8
		Meridium	0.5 ± 1.2	0.4 ± 0.8	−1.9 ± 1.4	−1.9 ± 2.3
		Elan	9.4 ± 2.9	0.8 ± 0.3	−0.7 ± 0.7	−0.2 ± 2.0
		Proprio	0.5 ± 15.4	0.8 ± 0.6	−3.2 ± 3.7	0.5 ± 0.9
		TSA	4.3 ± 10.5	0.5 ± 0.3	−1.4 ± 1.5	−0.8 ± 2.7
		Raize	3.9 ± 12.1		−3.3 ± 7.9
Δ thigh angle	Down (KSF on/off)	Everyday Feet	−7.9 ± 3.5	−9.8 ± 3.1 / -10.9 ± 3.6	−5.2 ± 3.1	−10.2 ± 5.0 / -8.1 ± 4.6	−1.2 ± 2.2
		Meridium	−1.2 ± 1.5	−2.2 ± 1.6 / -1.1 ± 0.8	−0.2 ± 0.7	−0.7 ± 1.6 / -0.5 ± 0.8
		Elan	−6.4 ± 1.7	−9.8 ± 1.5 / -8.5 ± 1.7	−2.1 ± 1.8	−10.0 ± 2.2 / -4.8 ± 0.9
		Proprio	−8.7 ± 2.1	−13.6 ± 5.1 / -10.5 ± 7.5	−4.4 ± 3.2	−11.6 ± 4.9 / -6.9 ± 4.5
		TSA	−6.4 ± 3.0	−6.7 ± 1.8 / -4.4 ± 1.8	−3.2 ± 0.9	−10.2 ± 5.1 / -6.6 ± 5.0
		Raize	−4.7 ± 2.9		−2.6 ± 0.7
	Up	Everyday Feet	0.9 ± 5.5	2.3 ± 2.1	−1.7 ± 1.8	1.7 ± 0.9	−0.4 ± 1.4
		Meridium	−0.3 ± 0.6	0.0 ± 1.6	−1.4 ± 0.8	−1.1 ± 1.3
		Elan	3.4 ± 1.5	2.5 ± 1.3	−0.4 ± 1.2	2.4 ± 1.7
		Proprio	2.3 ± 5.2	1.7 ± 0.8	−0.7 ± 2.5	2.7 ± 1.6
		TSA	1.7 ± 4.9	2.1 ± 1.4	−0.7 ± 0.9	2.0 ± 1.1
		Raize	1.0 ± 3.7		−1.4 ± 2.1

Mean leg joint angles in ° ± SD shown. Significant differences to the reference group (non-Amp) marked bold (p < 0.0083 for TT and p < 0.01 for TF). Values are differences to level standing, i.e. ankle angle: positive – more plantar flexed, negative – more dorsiflexed; knee and hip angle: positive – more extended, negative – more flexed