A Deep Learning-Based Framework Oriented to Pathological Gait Recognition with Inertial Sensors

Sensors (Basel). 2025 Jan 5;25(1):260. doi: 10.3390/s25010260.

Abstract

Abnormal locomotor patterns may occur in case of either motor damages or neurological conditions, thus potentially jeopardizing an individual's safety. Pathological gait recognition (PGR) is a research field that aims to discriminate among different walking patterns. A PGR-oriented system may benefit from the simulation of gait disorders by healthy subjects, since the acquisition of actual pathological gaits would require either a higher experimental time or a larger sample size. Only a few works have exploited abnormal walking patterns, emulated by unimpaired individuals, to perform PGR with Deep Learning-based models. In this article, the authors present a workflow based on convolutional neural networks to recognize normal and pathological locomotor behaviors by means of inertial data related to nineteen healthy subjects. Although this is a preliminary feasibility study, its promising performance in terms of accuracy and computational time pave the way for a more realistic validation on actual pathological data. In light of this, classification outcomes could support clinicians in the early detection of gait disorders and the tracking of rehabilitation advances in real time.

Keywords: bioengineering; convolutional neural network; deep learning; gait disorders; gait recognition; inertial measurement units; rehabilitation.

MeSH terms

  • Adult
  • Algorithms
  • Deep Learning*
  • Female
  • Gait Disorders, Neurologic / diagnosis
  • Gait Disorders, Neurologic / physiopathology
  • Gait Disorders, Neurologic / rehabilitation
  • Gait* / physiology
  • Humans
  • Male
  • Neural Networks, Computer
  • Walking / physiology

Grants and funding

This study was partially funded by the project ‘BRIEF—Biorobotics Research and Innovation Engineering Facilities’ (Mission 4, ‘Istruzione e Ricerca’—Component 2, ‘Dalla ricerca all’impresa’—Investment 3.1, ‘Fondo per la realizzazione di un sistema integrato di infrastrutture di ricerca e innovazione’, funded by the European Union—NextGenerationEU, CUP: J13C22000400007) and by the research project “PNRR-POC-2022-12375705—Diagnostic system for assessing haptic communication abilities and impairments during interactive locomotion”, Mission 6: “Salute”, Component 2: “Innovazione, ricerca e digitalizzazione del Servizio Sanitario”, CUP: D93C22001330007, funded by the European Union—NextGenerationEU.