ArticleClinical biomechanics (Bristol, Avon)2020
Human-prosthesis coordination: A preliminary study exploring coordination with a powered ankle-foot prosthesis.
Article in Clinical biomechanics (Bristol, Avon), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 19 citations in OpenAlex.
- Trial
- Projecting the new body: How body image evolves during learning to walk with a wearable robot.PNAS nexus · 2026Article
- Gait quality in prosthesis users is reflected by force-based metrics when learning to walk on a new research-grade powered prosthesis.Frontiers in rehabilitation sciences · 2024Article
- Human-prosthesis cooperation: combining adaptive prosthesis control with visual feedback guided gait.Journal of neuroengineering and rehabilitation · 2022Article
- Robotic Emulation of Candidate Prosthetic Foot Designs May Enable Efficient, Evidence-Based, and Individualized Prescriptions.Journal of prosthetics and orthotics : JPO · 2022Article
- Is there a trade-off between economy and task goal variability in transfemoral amputee gait?Journal of neuroengineering and rehabilitation · 2022Article
- Taking Both Sides: Seeking Symbiosis Between Intelligent Prostheses and Human Motor Control during Locomotion.Current opinion in biomedical engineering · 2021Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundPowered ankle-foot prostheses were developed to replicate the mechanics of the biological ankle by providing positive work during the push-off phase of gait. However, the benefits of powered prostheses on improving overall human gait efficiency (usually quantified by metabolic cost) have not been consistently shown. Here, we have focused on the mechanical work produced at the prosthetic ankle and its interaction with the amputee's movement.
methodsFive unilateral transtibial amputees walked on a treadmill using 1) a powered ankle-foot prosthesis and 2) their daily passive device. We determined the net ankle work and ankle work loops on the prosthesis-side to quantify the efficiency of the human-prosthesis physical interaction. We further studied peak propulsion timing and the posture of the amputee's lower limb and prosthesis as indicators of the human-prosthesis coordination. Comparisons were made between the passive and powered prosthesis conditions for each participant.
findingsThe powered prosthesis did not consistently increase net ankle work compared to each participant's passive device. For participants that lacked efficiency in interacting with the powered prosthesis, we observed 1) early prosthesis-side peak propulsion timing (≥ 4% earlier) and 2) a more vertical residual shank at the time of peak propulsion (> 2° more vertical) indicating that the human's limb movement and the prosthesis control during push-off were not well coordinated.
interpretationResults from this preliminary study highlight the need for future work to systematically quantify the coordination between the human and powered prosthesis and understand how such coordination at the joint level influences overall gait efficiency.
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