Table 1 Clinical evaluation of treadmill walking

From: Bioinspired origami-based soft prosthetic knees

 

1.0 m/s

1.25 m/s

Parameters

Soft

SI

Rigid

SI

Soft

SI

Rigid

SI

PHFA (°)

30.3 ± 1.1

(29.5 ± 7.0)

0.03

28.1 ± 3.5

(27.9 ± 7.8)

0.01

31.5 ± 0.8

(29.7 ± 1.5)

0.06

32.1 ± 1.9

(29.9 ± 2.6)

0.07

PHEA (°)

9.2 ± 3.0

(9.5 ± 2.9)

-0.03

9.3 ± 1.9

(10.4 ± 0.7)

− 0.11

9.5 ± 3.0

(10.8 ± 3.7)

− 0.13

8.6 ± 4.2

(10.2 ± 4.5)

− 0.17

HSFA (°)

10.2 ± 0.4

(11.1 ± 3.4)

-0.09

3.5 ± 1.8

(8.4 ± 1.7)

− 0.82

8.1 ± 1.6

(11.3 ± 3.1)

− 0.33

2.2 ± 0.4

(7.7 ± 2.3)

− 1.12

PKFA (°)

52.2 ± 3.4

(56.3 ± 2.3)

-0.08

46.2 ± 3.1

(55.2 ± 1.5)

− 0.18

58.9 ± 2.0

(61.7 ± 1.1)

− 0.05

53.2 ± 2.1

(59.6 ± 2.7)

− 0.11

SW PMA (%MVC)

76.4 ± 0.4

(84.2 ± 0.3)

-0.10

85.7 ± 0.3

(91.1 ± 1.3)

− 0.06

85.1 ± 1.5

(90.5 ± 2.0)

− 0.06

91.6 ± 3.4

(95.6 ± 3.0)

− 0.04

HS PGRF (%BW)

108.3 ± 5.0

(113.4 ± 3.6)

-0.05

108.2 ± 3.4

(115.1 ± 5.7)

− 0.06

114.6 ± 5.4

(119.9 ± 4.7)

− 0.05

115.8 ± 2.3

(120.2 ± 3.2)

− 0.04

STP (%)

66.8 ± 1.9

(68.8 ± 1.6)

−0.03

65.6 ± 1.6

(69.1 ± 1.8)

− 0.03

65.6 ± 2.3

(69.1 ± 2.1)

− 0.05

62.6 ± 2.4

(69.7 ± 2.6)

− 0.11

PVF (%BW)

Shank

108.3 ± 4.2

NA

109.0 ± 1.6

NA

114.8 ± 3.2

NA

114.0 ± 4.0

NA

Thigh

89.2 ± 8.6

NA

102.8 ± 3.7

NA

92.1 ± 2.3

NA

108.4 ± 5.3

NA

PVD (um)

Shank

202.8 ± 12.5

NA

206.7 ± 9.1

NA

221.5 ± 15.8

NA

234.6 ± 6.4

NA

Thigh

153.6 ± 12.9

NA

189.5 ± 6.0

NA

172.8 ± 15.2

NA

212.8 ± 5.4

NA

  1. NA, not applicable. SI, symmetry index. Parameters are shown as mean ± std. Data of the sound leg of the participant are shown in parentheses.