- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef NCT07613502
Bio Leg: Advancing Mobility (BAM)
Adaptive Mobility Technology: A Comparative Study of C-Leg and Bio Leg
Studie Overzicht
Toestand
Interventie / Behandeling
Gedetailleerde beschrijving
Although microprocessor-controlled knees (MPKs) such as the C-Leg have demonstrated clear benefits over non-microprocessor-controlled prosthetic knees, it remains unclear whether powered knee assistance provides additional advantages in movement quality, metabolic efficiency, and limb loading during walking adaptability tasks.
This study directly addresses this gap by comparing mobility using the Bio Leg to mobility with the C-Leg using outcome measures that reflect real-world mobility challenges.
By generating objective evidence on whether powered knee assistance improves biomechanics, efficiency, and stability beyond that achieved with an established MPK, this study will inform prosthetic prescription, rehabilitation strategies, and payer decision-making. Given the growing population of individuals living with transfemoral amputation, identifying technologies that support safe, efficient, and confident mobility has important implications for community participation, long-term musculoskeletal health, and quality of life.
This study uses a within-subject repeated-measures design in which each participant is assessed under two conditions: current prosthesis and the Bio Leg prosthesis. All primary and secondary outcomes will be analyzed as within-participant differences, with each participant serving as their own control.
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: Emily J Fox, PT, DPT, MHS, PhD
- Telefoonnummer: 904-742-2500
- E-mail: ejfox@phhp.ufl.edu
Studie Contact Back-up
- Naam: Joshua C Encarnacion, BS
- Telefoonnummer: 904-345-8969
- E-mail: Joshua.Encarnacion@brooksrehab.org
Studie Locaties
-
-
Florida
-
Jacksonville, Florida, Verenigde Staten, 32216
- Brooks Rehabilitation
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- Adults 40 to 70 years of age
- Unilateral transfemoral amputation > 1 year
- K3 or K4 ambulator and able to walk with no greater assistances than a single point cane
- Current microprocessor-controlled prosthesis (C-leg) user with > 6 months experience and able to walk without a device of using a single point cane
- Able to give informed consent
Exclusion Criteria:
- Severe cardiovascular condition or other disease limiting study participation
- Skin lesions or wounds, acute or unstable fracture, diagnosis of osteoarthritis or bone impairments affecting safe participation in walking activities
- Residual limb dysfunction (i.e. joint contracture) limiting mobility or study participation
- Pain that limits walking of participation in walking activities
- Current participation in rehabilitation to address walking function
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Niet-gerandomiseerd
- Interventioneel model: Crossover-opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Geen tussenkomst: C-Leg
The first assessment will involve testing the participant with their current C-leg microprocessor prosthesis.
|
|
|
Experimenteel: Bio Leg
After the Bio Leg fitting, the participant will exclusively wear the Bio Leg knee component for an acclimation period that will be a minimum of 4 weeks and up to 6 depending on participant's schedule and comfort/ease of using the device.
Each participant will complete a minimum of 2 and up to 4 physical therapy sessions during the acclimation period.
These physical therapy sessions will involve standard physical therapy training for use of a prosthetic limb after amputation.
Following the acclimation period, the participant will complete the second assessment, which will mirror the first assessment.
|
After completing biomechanics and clinical testing at Pre Assessment with their C-Leg, participants will be fitted with a Bio-Leg prosthesis at the prosthetist clinic.
The participant will train and use the Bio-Leg prosthesis during a 4-6 week acclimation period.
The participant will then complete the same biomechanics and clinical testing at Post Assessment.
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Change in 6-Minute Walk Test (6MWT)
Tijdsspanne: Baseline, 4-6 weeks
|
The distance that a patient should walk based on their height, weight, age, and gender.
Performance assessment of walking endurance for 6 minutes.
An increase in the number of meters walked during this assessment reflects an improvement in walking endurance.
|
Baseline, 4-6 weeks
|
|
Change in Interlimb Symmetry (Ground Reaction Forces)
Tijdsspanne: Baseline, 4-6 weeks
|
A direct measure of vertical ground reaction forces during the rising phase of a sit-to-stand task (measured in Newtons) using standard force plates embedded in the floor.
Increased symmetry in ground reaction forces between the lower limbs reflects improved equalization of weight distribution between the limbs.
|
Baseline, 4-6 weeks
|
|
Change in Metabolic Efficiency (O2/kg/m)
Tijdsspanne: Baseline, 4-6 weeks
|
A direct measure assessed during the six-minute walk test.
Metabolic efficiency is determined by the energy cost of transport, defined as oxygen consumption per unit body weight and distance walked (O₂/kg/m), which accounts for the individual's weight and walking speed.
Improved metabolic efficiency reflects enhanced oxygen delivery and utilization during walking.
|
Baseline, 4-6 weeks
|
Medewerkers en onderzoekers
Sponsor
Medewerkers
Onderzoekers
- Hoofdonderzoeker: Emily J Fox, PT, DPT, MHS, PhD, University of Florida & Brooks Rehabilitation
Studie record data
Bestudeer belangrijke data
Studie start (Geschat)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Andere studie-ID-nummers
- IRB202600203
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
product vervaardigd in en geëxporteerd uit de V.S.
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .
Klinische onderzoeken op Bio-Leg
-
University of PennsylvaniaMedtronic - MITGVoltooid
-
Investigación en Hemofilia y FisioterapiaVoltooid
-
Taipei Physical Education CollegeVoltooid
-
Riphah International UniversityWervingCystische fibrose (CF)Pakistan
-
National Taiwan University HospitalVoltooidPatellofemoraal pijnsyndroomTaiwan
-
Fortis Hospital, IndiaOnbekend
-
Radboud University Medical CenterOnbekendVloeiende responsiviteitNederland
-
InSightecActief, niet wervendProstaatkankerVerenigde Staten
-
Suleyman Demirel UniversityVoltooidElastografie | Spierrekkingsoefening | HamstringspierKalkoen
-
Mansoura UniversityOnbekendEndoscopische pilonidale sinusEgypte