Characterization of Residual Limb Volume Changes in Transfemoral Amputees

Inclusion Criteria: * Stabilized (i.e., time since amputation \> 18 months) transfemoral amputees * Age between 18 and 65 years old * Subjects able to safely perform the physical tasks required in the experimental protocol * Subjects provided with prostheses Exclusion Criteria: * Denial of informed consent to participate in the study * Inability to maintain the required position during the 3D scanning for at least 5 minutes * Concomitant general or localized comorbidities / disabilities, which may interfere with the study * Pathological conditions affecting the residual limb * Allergy / sensitivity with polydimethylsiloxane (PDMS) * Pathological cardiopulmonary / cardiovascular conditions * Pregnancy or breastfeeding * Presence of psychiatric co-morbidities * Presence of cognitive deficits which may compromise the understanding of the required tasks * Difficulty in understanding the Italian language * Insufficient degree of collaboration * Consumption of alcohol or diuretics before tests