Fig. 5

Map of intrinsically related needs of lower-limb prosthesis users. Individual functional (top, green), psycho-cognitive (right, yellow), ergonomic (left, pink), and other needs (bottom, blue) are connected using solid black lines to denote the intrinsic relationship between the user needs, as expressed in the literature. The number on each line refers to the reference that established the relationship. For example, the needs e1 (good comfort) and e7 (good thermo-regulation/less sweating) have been connected through the reference [89] as the authors indicated that more than 53% of the prosthetic users are expressing discomfort due to excessive socket heat or sweating