Research & AI · alongside the engineering

Explainable AI for human locomotion

A PhD in explainable AI applied to biomechanics — the research side of a technology career, and where my instincts about trustworthy AI features come from.

  • UNLOC group
  • Universidad San Jorge
  • PhD in Health Sciences

01 Context

Alongside my day-to-day work as a software engineer, I've been a researcher with the UNLOC (Unlimited Locomotion) group at Universidad San Jorge since 2024, and a PhD candidate in Health Sciences since 2025. The research develops explainable AI and leakage-free machine-learning pipelines for clinical gait and foot-pressure data — and it shapes how I integrate models into the products I build: if a system can't explain itself, it doesn't ship.

ORCID 0009-0004-7663-2888

02 Doctoral research

The thesis, in plain terms

Teach a model to recognise how people walk, then force it to justify every call it makes.

2025 — present PhD in Health Sciences

Explainable AI for the biomechanics of human locomotion

Segmented normality patterns and biomechanical pre-diagnosis.

Group
UNLOC — Unlimited Locomotion, Universidad San Jorge
Principal investigator
Luis E. Roche-Seruendo
Supervisors
Dr. Alejandro Molina Molina · Dr. Violeta Monasterio Bazán
Methods
Explainable AI (SHAP, LIME, Grad-CAM, counterfactuals) and leakage-free ML pipelines applied to clinical gait and foot-pressure data — baropodometry, optical motion capture, OptoGait and inertial sensors.

03 Method

Six steps, in order

Select a step to see what happens in it.

01

Clinical problem definition

Frame locomotion pathologies where explainability is critical. Work with the UNLOC group and clinicians to define segmented normality and pre-diagnosis targets.

04 Focus areas

Research domains

01

Explainable AI

Making ML models transparent for clinical and sports professionals: SHAP for feature contributions, LIME for local interpretability, Grad-CAM for visual attribution, counterfactuals for actionable what-if reasoning.

02

Locomotion biomechanics

Analysing clinical gait and foot-pressure data — baropodometry, optical motion capture, OptoGait, inertial sensors — to characterise segmented normality patterns.

03

Leakage-free ML

Reproducible pipelines and per-pathology binary classification, so reported performance reflects true generalisation rather than optimistic leakage.

04

Clinical decision support

AI that enhances rather than replaces clinical judgement — explanations designed around clinician and sports-science workflows, validated against clinical standards.

05 Insights

What the work has taught me

  1. 01

    Explainability increases adoption

    Clinicians and sports-science professionals are significantly more likely to act on AI recommendations when they understand the reasoning behind them.

  2. 02

    Leakage is the silent killer

    Much of the reported accuracy in locomotion ML collapses under leakage-free validation. Honest pipelines matter more than headline metrics.

  3. 03

    One technique isn’t enough

    SHAP, LIME, Grad-CAM and counterfactuals each reveal a different facet of a decision. Combining them gives a fuller, more trustworthy explanation.

  4. 04

    Normality is segmented

    There is no single "normal" gait. Segmenting normality patterns is what makes biomechanical pre-diagnosis meaningful and fair.

06 Publications

Work in progress

Systematic review

Explainable AI in Human Locomotion Biomechanics: A Systematic Review

A PRISMA-guided systematic review (registered on PROSPERO) mapping how explainable AI is applied across human-locomotion biomechanics.

PRISMAPROSPEROXAIBiomechanics
In preparation Preprint — coming soon
Methodological manuscript

Per-Pathology Binary Classification with SHAP-Based Explainability

A methodological manuscript on leakage-free per-pathology binary classification of locomotion data, with SHAP-based explainability of model decisions.

SHAPClassificationGait
In preparation Preprint — coming soon

07 Academic appointments

Teaching and academic leadership

2024 — present

University Lecturer

Universidad San Jorge

Teaching Artificial Intelligence, Cybersecurity and Bioinformatics.

2025 — present

Director, MSc in Advanced Technologies for Mobile Devices

Universidad San Jorge

Academic direction of the master’s programme.

08 From lab to field

Where research meets sport

My doctoral research on explainable AI and human locomotion has a natural applied home: sport. Through my innovation work with national and regional judo federations, the same methods — leakage-free pipelines, interpretable models, biomechanical pre-diagnosis — reach injury prevention, athlete monitoring, and the clinicians and coaches who support high performance.

The goal is the same in the lab and on the field: AI that the people behind human performance — sports scientists, physiotherapists, and the athletes themselves — can genuinely understand, question and act on.

Collaboration

Research partnerships?

Open to collaborating on explainable AI, locomotion biomechanics and applied research. Full academic record on ORCID.

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ORCID