Benjamin Filtjens Human Movement Intelligence

Research project

RevalExo

Co-designing a home-based assistive exoskeleton with AI-based assessment and intelligent adaptive control.

Research Collaboration Rehabilitation and assistive technologyLearning from human movement
Role
Co-Investigator
Award / reference year
2023
Funders
Research Foundation – Flanders (FWO), Strategic Basic Research
An older user, clinician and researcher co-design an exoskeleton; movement, physiological demand and environmental context feed AI assessment linked to a home exoskeleton through adaptive control and feedback, with wearer adjustment.

Co-designing home-based assistance that links movement, physiological demand and environmental context to AI-based assessment and adaptive control. Conceptual illustration.

Illustration developed for RevalExo · View full-size image ↗

Movement assistance at home needs to respond to changing activities and individual needs. RevalExo co-designs a home-based lower-limb exoskeleton with users and clinicians. Our research focuses on AI-based assessment and intelligent adaptive control, combining movement, physiological demand and environmental context to anticipate walking activities and tailor assistance.

The RevalExo benchmark supports locomotion-mode learning across older adults and clinical cohorts. HERMES connects synchronized multimodal sensing with real-time inference and closed-loop assistance. A healthy-participant feasibility pilot explored assistance informed by locomotion intent and fatigue, with wearer and researcher adjustment or override.

Related work

Publications

2026

Preprint

RevalExo: A Functional Daily-Activity Benchmark for Inertial and Visual Locomotion Mode Recognition in Older Adults and Clinical Cohorts

Lamsal D, Carlon J, Claeys R, Yudayev M, Flynn L, Verstraten T, Beckwée D, Swinnen E, Bâce M, Vanrumste B, Filtjens B

arXiv preprint arXiv:2609.08090, 2026

BMVC 2026, oral presentation, in press; linked version is a preprint.

Citation

Lamsal D, Carlon J, Claeys R, Yudayev M, Flynn L, Verstraten T, Beckwée D, Swinnen E, Bâce M, Vanrumste B, Filtjens B (2026). RevalExo: A Functional Daily-Activity Benchmark for Inertial and Visual Locomotion Mode Recognition in Older Adults and Clinical Cohorts. arXiv preprint arXiv:2609.08090, 2026. https://doi.org/10.48550/ARXIV.2609.08090

2026

Dataset

RevalExo Dataset

Lamsal D, Carlon J, Claeys R, Yudayev M, Flynn L, Verstraten T, Beckwée D, Swinnen E, Bace M, Vanrumste B, Filtjens B

Published online January 2026

Citation

Lamsal D, Carlon J, Claeys R, Yudayev M, Flynn L, Verstraten T, Beckwée D, Swinnen E, Bace M, Vanrumste B, Filtjens B (2026). RevalExo Dataset. Published online January 2026. https://doi.org/10.48804/OWJOID

2026

Preprint

HERMES: A Unified Open-Source Framework for Realtime Multimodal Physiological Sensing, Edge AI, and Intervention in Closed-Loop Smart Healthcare Applications

Yudayev M, Carlon J, Lamsal D, Stefanova V, Filtjens B

arXiv preprint arXiv:2601.12610, 2026

Citation

Yudayev M, Carlon J, Lamsal D, Stefanova V, Filtjens B (2026). HERMES: A Unified Open-Source Framework for Realtime Multimodal Physiological Sensing, Edge AI, and Intervention in Closed-Loop Smart Healthcare Applications. arXiv preprint arXiv:2601.12610, 2026. https://doi.org/10.48550/arXiv.2601.12610

2026

Journal Article

Putting the human at the core of human-in-the-loop optimization: integrating clinical expertise and human capacities in exoskeleton learning. An interdisciplinary perspective paper

Beckwée D, Filtjens B, Claeys R, Lambranzi C, Eggermont M, Firouzi M, Flynn L, Aeles J, Verstraten T, Swinnen E

Disability and Rehabilitation, 1-11, 2026

Citation

Beckwée D, Filtjens B, Claeys R, Lambranzi C, Eggermont M, Firouzi M, Flynn L, Aeles J, Verstraten T, Swinnen E (2026). Putting the human at the core of human-in-the-loop optimization: integrating clinical expertise and human capacities in exoskeleton learning. An interdisciplinary perspective paper. Disability and Rehabilitation, 1-11, 2026.

2026

Preprint

FATIG’AGE: Co-Creation And Validation Of An Ecologically Informed Daily-Activity Protocol To Assess Fatigability In Ageing Populations With Diverse Functional Profiles

Claeys R, Carlon J, Firouzi M, De Raedt S, Lieten S, Verstraten T, Filtjens B, Swinnen E, Beckwée D

Research Square preprint

Citation

Claeys R, Carlon J, Firouzi M, De Raedt S, Lieten S, Verstraten T, Filtjens B, Swinnen E, Beckwée D (2026). FATIG’AGE: Co-Creation And Validation Of An Ecologically Informed Daily-Activity Protocol To Assess Fatigability In Ageing Populations With Diverse Functional Profiles. Research Square preprint. https://doi.org/10.21203/rs.3.rs-9052736/v1

2025

Journal Article

Toward better assistive lower-limb exoskeletons: Insights from stroke survivors through co-design

Claeys R, Embrechts E, Debeuf R, Firouzi M, Bourazeri A, De Raedt S, Moeyersons C, Filtjens B, Verstraten T, Beckwée D, Swinnen E

Assistive Technology, 1-15, 2025

Citation

Claeys R, Embrechts E, Debeuf R, Firouzi M, Bourazeri A, De Raedt S, Moeyersons C, Filtjens B, Verstraten T, Beckwée D, Swinnen E (2025). Toward better assistive lower-limb exoskeletons: Insights from stroke survivors through co-design. Assistive Technology, 1-15, 2025.

2025

Journal Article

Understanding the perspectives of older adults and physiotherapists on home-based lower-limb exoskeletons

Claeys R, Embrechts E, Bourazeri A, Debeuf R, Firouzi M, Eggermont M, Lieten S, Filtjens B, Verstraten T, Swinnen E, Beckwée D

Wearable Technologies 6, e31, 2025

Citation

Claeys R, Embrechts E, Bourazeri A, Debeuf R, Firouzi M, Eggermont M, Lieten S, Filtjens B, Verstraten T, Swinnen E, Beckwée D (2025). Understanding the perspectives of older adults and physiotherapists on home-based lower-limb exoskeletons. Wearable Technologies 6, e31, 2025. https://doi.org/10.1017/wtc.2025.10015