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Degenerative osteoarthritis (DOA) impairs joint function and quality of life. Early detection and intervention can prevent further deterioration, yet identifying the disease at an early stage remains challenging.This work presents a wearable system for gait-based DOA screening, integrating seven IMUs and two pressure insoles to estimate kinematics and kinetics of lower limb during walking. The system was validated with optical motion capture and force plates system, with high correlation in joint angle and moment ( \(R^2 \ge 0.97\) ). It was then deployed in clinical settings to collect gait data from knee osteoarthritis (KOA) patients. We introduce three functional metrics: stance-phase knee range of motion (SKRoM), full-phase knee range of motion (FKRoM), and maximum knee moment (MKM) to quantify joint deficits and compensatory patterns. Additionally, these metrics are associated with KOA and may serve as potential targets for early intervention.

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Towards Early Intervention of Knee Osteoarthritis: A Wearable System for Gait Analysis and Functional Evaluation

  • 会议论文

  • 发表日期：

    2026年

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  • Haolan Xian,
  • Changjiang Lei,
  • Jinglin Zhou,
  • Changquan Liu,
  • Wei Sun,
  • Zhiyong Wang,
  • Chenglong Fu,
  • Yuquan Leng

摘要

Degenerative osteoarthritis (DOA) impairs joint function and quality of life. Early detection and intervention can prevent further deterioration, yet identifying the disease at an early stage remains challenging.This work presents a wearable system for gait-based DOA screening, integrating seven IMUs and two pressure insoles to estimate kinematics and kinetics of lower limb during walking. The system was validated with optical motion capture and force plates system, with high correlation in joint angle and moment ( \(R^2 \ge 0.97\) ). It was then deployed in clinical settings to collect gait data from knee osteoarthritis (KOA) patients. We introduce three functional metrics: stance-phase knee range of motion (SKRoM), full-phase knee range of motion (FKRoM), and maximum knee moment (MKM) to quantify joint deficits and compensatory patterns. Additionally, these metrics are associated with KOA and may serve as potential targets for early intervention.