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Related Concept Videos

Ankle Joint01:10

Ankle Joint

3.4K
The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
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Related Experiment Video

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Clinical-oriented Three-dimensional Gait Analysis Method for Evaluating Gait Disorder
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Three-dimensional Motion Analysis of the Ankle during Backward Walking.

Naoki Soda1, Tsutomu Ueki, Takaaki Aoki

  • 1Department of Rehabilitation, Major in Physical Therapy, Heisei College of Health Sciences ; Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine.

Journal of Physical Therapy Science
|November 22, 2013
PubMed
Summary

Backward walking significantly reduces ankle power, workload, and work rate in healthy adults. This suggests that ankle joints contribute less to propulsion during backward locomotion compared to forward walking.

Keywords:
Ankle powerBackward walkingThree-dimensional motion analysis

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Area of Science:

  • Biomechanics
  • Human locomotion analysis

Background:

  • Understanding the biomechanical differences between forward and backward walking is crucial for gait analysis and rehabilitation.
  • The ankle joint plays a significant role in propulsion during normal gait.

Purpose of the Study:

  • To compare the kinematic and kinetic parameters of the ankle joint during forward and backward walking.
  • To investigate the contribution of the ankle to propulsion in different gait directions.

Main Methods:

  • Utilized three-dimensional motion analysis and ground reaction force plates to capture gait data.
  • Analyzed key parameters including walking time, ankle range of motion, peak ankle power, workload, and work rate during the stance phase.
  • Employed t-tests for statistical comparison between forward and backward walking conditions in 11 healthy adults.

Main Results:

  • Significantly lower peak ankle power, workload, and work rate were observed during backward walking compared to forward walking.
  • Ankle joint kinematics showed distinct patterns between the two walking directions.

Conclusions:

  • The ankle joint's contribution to propulsive force is diminished during backward walking.
  • Propulsion during backward locomotion likely relies on other anatomical structures or mechanisms.
  • Joint power analysis is a valuable metric for elucidating gait dynamics and understanding functional adaptations.