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Related Concept Videos

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Related Experiment Video

Updated: Jul 17, 2026

Substantiating Appropriate Motion Capture Techniques for the Assessment of Nordic Walking Gait and Posture in Older Adults
09:37

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Evaluating walkability across age groups and flooring materials using IMU sensors.

Daehwi Jo1, Hyunsoo Kim1

  • 1Department of Architectural Engineering, Dankook University, Yongin-si, Gyeonggi-do, Republic of Korea.

Frontiers in Public Health
|December 20, 2024
PubMed
Summary

This study used Inertial Measurement Unit (IMU) sensors to measure walkability on different flooring materials. Wood surfaces provided the most stable walking, while cement was least stable, with stability decreasing with age.

Keywords:
IMU sensorsagedynamic time warpingfatigueflooring materialswalkability

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Area of Science:

  • Biomechanics
  • Human-Computer Interaction
  • Urban Planning

Background:

  • Walkability is crucial for urban mobility and public health.
  • Assessing pedestrian infrastructure often relies on subjective evaluations.
  • Objective, quantitative methods are needed to evaluate surface impacts on gait.

Purpose of the Study:

  • To quantitatively assess the impact of common flooring materials on walkability.
  • To investigate age-related differences in gait stability across various surfaces.
  • To propose a sensor-based methodology for evaluating pedestrian infrastructure.

Main Methods:

  • Utilized Inertial Measurement Unit (IMU) sensors to capture gait data (acceleration, gyroscope).
  • Employed the Dynamic Time Warping (DTW) algorithm to analyze gait stability.
  • Evaluated four materials (wood, asphalt, concrete block, cement) across five age groups (20-60+ years) with 80 participants.

Main Results:

  • Significant differences in gait stability (DTW values) were found among flooring materials.
  • Wood surfaces yielded the lowest average DTW (12.99 ± 3.05), indicating highest stability.
  • Cement surfaces showed the highest average DTW (39.14 ± 9.74), indicating lowest stability.
  • Gait stability decreased with increasing age across all tested materials.

Conclusions:

  • The IMU sensor and DTW algorithm provide a robust, quantitative method for assessing walkability.
  • Flooring material significantly impacts gait stability, with wood being optimal and cement suboptimal.
  • Age is a critical factor influencing gait stability on different surfaces, highlighting the need for age-inclusive infrastructure design.
  • This approach supports the development of smart cities by enabling objective evaluation and optimization of pedestrian environments.