ArticleJournal of prosthetics and orthotics : JPO2025
Evaluation of a Portable Bionic Ankle Prosthesis Under Direct Continuous Electromyography Control for Quiet Standing Tasks.
Article in Journal of prosthetics and orthotics : JPO, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Phase-Based Haptic Feedback for Improved Neural Control of a Robotic Prosthetic Ankle: A Preliminary Study.IEEE robotics and automation letters · 2026Article
- Lower-limb prosthetic mechanisms: recent progress, control innovations and barriers to real-world adoption.Biomedical engineering online · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
Introduction: Postural control and balance are necessary for activities of daily living. Passive prostheses that reduce ankle dorsiflexion/plantarflexion control can require different balance strategies compared with able-bodied individuals. Powered prostheses may restore ankle joint control and improve balance compared with passive prostheses. Muscle activity as the prosthetic control input leverages the human neural control system to directly modulate prosthetic dynamics. This study evaluates continuous myoelectric control during quiet standing tasks with an untethered electromechanically actuated bionic ankle prosthesis. Methods: Six individuals with transtibial amputation conducted four 30-second trials of quiet standing for four standing conditions (Eyes Open, Eyes Closed, Eyes Open Foam, and Eyes Closed Foam) using their passive, prescribed prosthesis and a bionic prosthesis under two types of myoelectric control. One strategy solely used residual gastrocnemius muscle as input (GAS), whereas the second used the gastrocnemius and tibialis anterior (GAS+TA). Postural stability was evaluated via Total Excursion, Body Sway Area, and Prediction Ellipse Area center of pressure measures from force plates. We hypothesized that the bionic prosthesis would improve balance control compared with the passive prosthesis. We also quantified weight bearing of prosthetic and sound limbs. Participants completed a preference/sense of stability survey between the prostheses. Results: We found no significant differences in individual prostheses and controllers across our four standing conditions, or between prostheses and controllers for a single standing condition for all center of pressure measures. Participants tended to increase weight on their sound limb from Eyes Open to Eyes Closed Foam conditions. Participants trended toward preferring myoelectric control, but there were no significant differences among prostheses. Conclusions: Compared with a passive transtibial prosthesis, a myoelectrically controlled bionic prosthesis did not alter standing balance performance. Clinical Relevance: Our study did not demonstrate differences between the myoelectrically controlled bionic transtibial prosthesis and the prescribed passive prosthesis in balance control. It is possible that other metrics would be necessary to increase sensitivity in comparisons.
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Registered trials
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