Amputation, Leg Amputation, Traumatic Amputations
Conditions
Brief summary
The aim of the present study is to verify the functionalitỳ, the degree of safety and the reliability of devices composed of an intelligent socket that allows the detection of biosignals and provides vibrotactile feedback and a prosthesis with active knee and ankle joints and a sensorised foot, for people with trans-femoral or trans-tibial amputation, which allows the optimisation of the gait cycle by providing active assistance at the knee and ankle joints according to the specific movement made by the user. The prototype devices are innovative in that they make it possible to optimise the benefits generated by the presence of actuated joints by exploiting the biosignals detected to ensure optimal functionalitỳ in the performance of activities̀ of daily living.
Interventions
DEVICEprototype prosthetic group
These 3 sessions will commence only upon successful completion of the prosthesis safety and reliability tests conducted in the preceding sessions. For each module combination, a session will be conducted to assess motor performance through the acquisition of spatiotemporal parameters and energy efficiency parameters of gait. Motor performance will be evaluated using functional assessment tests and data will be recorded during the following activities: * parallel bar walking on flat ground * parallel bar walking on an inclined surface * treadmill walking with a safety harness * stair climbing/descending with a handrail * standing up and sitting down from a chair within parallel bars At the end of each session, satisfaction questionnaires (ad hoc questionnaire) will be completed. At the end of the experiment, a usability scale for the devices (ad hoc System Usability Scale) will be completed. Each session is expected to last approximately 2.5 hours.
Sponsors
Fondazione Don Carlo Gnocchi Onlus
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* Age between 18 and 80 years; * Lower limb amputation at the transfemoral or transtibial level; * Functional medical classification: Level K3-K4 \[25\]; * Subjects wearing a prosthesis for at least 1 year (experienced wearers); * Maximum body weight 100 kg.
Exclusion criteria
* Significant medical comorbidities: Presence of severe neurological disorders, cardiovascular diseases, uncontrolled diabetes/hypertension, or severe sensory deficits. * Implanted cardiac devices: Individuals with implanted pacemakers or cardioverter-defibrillators. * Cognitive impairment: Individuals with a Mini-Mental State Examination (MMSE) score less than 24, adjusted for age and education, indicating cognitive impairment that may compromise understanding of instructions and research participation. * Severe depressive symptoms: Individuals with a Beck Depression Inventory-II (BDI-II) score less than 19, indicating clinically significant depression that may affect motivation and participation in the research. * Severe anxiety symptoms: Individuals with a State-Trait Anxiety Inventory (STAI-Y) score less than 50, indicating clinically significant anxiety that may interfere with research participation. * Inability or unwillingness to provide informed consent: Individuals who are unable to understand or provide informed consent to participate in the research, or who refuse to participate.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Ad hoc check list for Adverse Event | baseline | questionnaire that evaluate the device feasibility of the prosthesis and description of any adverse events. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Borg Scale | day 1 | 0-10 numerical rating scale that evaluate of the subjective perception of efforts during walking. |
| 10mwt - 10 meters walking test | baseline | to evaluate walking capacity measured in seconds |
| 6mwt - 6 minutes walking test | baseline | to evaluate walking capacity measured in metres |
| System Usability Scale | day 6. | a questionnaire made up of 10 questions whose answers are yes structured on a Likert scale with 0-100 that assesses the usability of the prosthesis. |
| TUG - Time Up and Go | baseline | to assess lower limb capabilities in seconds |
| SCT - Stair Climbing Test | baseline | to assess the capabilities of climb 8 stairs in seconds |
| FCT - Functional Reach Test | baseline | to assess the balance in centimeters |
| Functional Reach Test | day 5 | to assess the balance in centimeters |
| Cost of Transport -COT | day 6 | To assess metabolic consumption |
Countries
Italy
Outcome results
None listed