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Table 3 Evaluation of Hannes’s functionality, embodiment, and user experience

From: Benefits of the Cybathlon 2020 experience for a prosthetic hand user: a case study on the Hannes system

 

Pilot 1

Pilot 2

Ti

Tf

Δ

Ti

Tf

Δ

Functionality

 MMDT [s]

180.0

150.0

− 30.0

196.0

179.0

− 17.0

 SHAP IOF [%]

58.0

76.0

18.0

61.0

75.0

14.0

 BBT [n°]

18.0

24.0

6.0

16.0

21.0

5.0

 QuickDASH

11.4

11.4

0.0

13.6

11.4

− 2.2

 OPUS-UEFS: usage [%]

50.0

75.0

25.0

67.9

71.4

3.5

 OPUS-UEFS: goodness [%]

71.4

79.8

8.4

69,7

75.0

5.3

Embodiment: postural balance test

 TP length [mm]

EO

477.9

411.9

− 66.0

482.7

500.7

18.0

EC

589.7

479.4

− 110.3

665.7

808.2

142.5

 ML path length [mm]

EO

222.1

177.2

− 44.9

251.4

186,2

− 65.2

EC

270.4

177.2

− 93.4

323.7

387.9

64.2

 AP path length [mm]

EO

356.9

334.9

− 22.0

360.3

433.5

73.2

EC

438.6

410.9

− 27.7

514.7

638.8

124.1

Embodiment and user experience: AD-HOC questionnaire

 Embodiment

7

10

3

8

8

0

 System use

17

20

3

17

17

0

 Daily life impact

13

15

2

10

12

2

User experience

 Raw NASA-TLX [%]

34.2

11.7

− 22.5

40.8

25.8

-15.0

 SUS

95.0

100.0

5.0

87.5

90.0

2.5

 TAPES, part 1 [%]

80.0

93.3

13.3

83.3

89.2

5.9