Effectiveness of a novel microprocessor-controlled prosthetic ankle compared with conventional and microprocessor-controlled prosthetic ankles in individuals with unilateral transtibial amputation: A multicentre randomised crossover study.
Gait PostureAug 25, 2026 (epub)
Clinical ResearchPhysical Medicine & Rehabilitation
Hyokyum Kim, Hee Seung Yang, Hyun Ah Lee et al.
✦ AI-curated · Sources linked
In 30 seconds
This multicentre randomised crossover study evaluated the biomechanical and metabolic effects of the RoFT® microprocessor-controlled ankle (MPA-2) in 18 individuals with unilateral transtibial amputation. MPA-2 demonstrated greater amputated-limb ankle range of motion and peak positive ankle power compared to both conventional prosthetic ankle (CPA) and another microprocessor-controlled ankle (MPA-1).
Key findings
- MPA-2 showed greater peak positive ankle power than CPA and MPA-1.
- Ankle range of motion was improved with MPA-2 compared to CPA and MPA-1.
- Intact-limb first peak vertical ground reaction force was lower with MPA-2 than with CPA.
- Metabolic energy expenditure did not differ significantly among the prosthetic conditions.
Why it matters
Understanding the biomechanical advantages of advanced prosthetic devices can inform clinicians about potential improvements in gait mechanics for patients with transtibial amputation, which may enhance mobility and quality of life.