Table 1 Collection of user needs expressed in the literature

Functional Needs

Walk

[34, 79, 84, 85, 87, 93, 96, 105,106,107]

697

Use less energy

[79, 87, 106, 107]

520

Independence

[34, 79, 80, 84, 85, 87, 96, 99, 108]

491

Mobility

[17, 80, 82, 91,92,93, 95, 96, 99, 105, 107]

510

Employment/school

[54, 80, 95, 99]

378

Balance/stability

[17, 79, 91, 96, 107]

186

Psychological and cognitive needs

Safety

[17, 74, 81, 91, 96, 106, 107, 109]

959

Confidence

[91, 93, 96, 107, 108]

118

Integration in social/leisure activities/life

[34, 44, 54, 68, 79, 80, 84, 85, 95, 99, 105]

698

Better mental health

[21, 64, 96]

988

Sexual activity/proper functioning

[70, 83, 100, 103, 104]

286

Acceptance of the device

[54, 79, 82, 85,86,87, 105]

374

Lower attentional demands

[52, 81, 91, 93, 106, 107]

903

Embodiment

[71, 108]

196

Proprioception

[92]

12

Ergonomic needs

Good Comfort

[69, 72, 73, 79, 97, 98, 102, 108]

2889

Good Fit

[72, 73, 91,92,93, 98, 102, 108]

805

Residual limb health

[72, 79, 82, 85, 92, 105]

685

Less pain

[54, 60, 63, 66, 67, 72, 73, 82, 84, 85, 87, 93, 94, 98, 101, 105]

2322

Less weight

[54, 78, 79, 102, 107]

647

Easy to don/use

[79, 92]

104

Good thermo-regulation/less sweating

[88, 91, 92]

67

Other needs

Little to no noise

[79]

92

Little to no smell/ease to clean

[65, 79, 92]

257

Acceptable appearance

[1, 54, 65, 105]

334

Sound limb health

[93, 106]

425

Durability

[79, 92]

104

Water and weatherproof

[85, 93, 107]

65

No restriction/damage on clothing/shoes

[65, 79, 87]

267

Reduced cost

[54, 82, 93]

120

Battery life

[107]

10