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Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings
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Three-Axis Ground Reaction Force Distribution during Straight Walking.

Masataka Hori1, Akihito Nakai2, Isao Shimoyama3

  • 1Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. hori@leopard.t.u-tokyo.ac.jp.

Sensors (Basel, Switzerland)
|October 25, 2017
PubMed
Summary
This summary is machine-generated.

This study analyzed ground reaction force distribution during walking using shoe-mounted sensors. Findings reveal specific foot regions

Keywords:
3-axis force sensorbipedal locomotionforce distributiongaitground reaction force (GRF)micro electro mechanical systems (MEMS)shoewalk

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Area of Science:

  • Biomechanics
  • Human Locomotion
  • Gait Analysis

Background:

  • Understanding ground reaction forces (GRF) is crucial for analyzing bipedal locomotion.
  • Previous studies often lack detailed, localized GRF measurements across the entire foot sole.

Purpose of the Study:

  • To measure and analyze the three-axis ground reaction force distribution under the sole of the shoe during straight walking.
  • To identify the specific roles of different foot regions in generating and receiving forces during gait.

Main Methods:

  • Fabrication and calibration of small, three-axis force sensors using rubber and sensor chips.
  • Attachment of 16 calibrated sensors to a subject's left shoe.
  • Measurement and analysis of three-axis GRF distribution during straight-line walking.

Main Results:

  • The heel region primarily receives braking forces.
  • The base of the 4th and 5th toes experiences minimal vertical or shear forces.
  • The base of the 2nd and 3rd toes generates propulsive forces and absorbs significant vertical forces.
  • The big toe area aids in shifting the body's center of mass.

Conclusions:

  • Measuring three-axis GRF distribution provides detailed insights into bipedal locomotion.
  • Specific foot regions have distinct functions in force absorption and propulsion during walking.
  • This methodology enhances the understanding of gait biomechanics.