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Updated: Sep 4, 2025
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Lower-Limb Biomechanical Characteristics Associated with Unplanned Gait Termination Under Different Walking Speeds
Published on: August 25, 2020
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Investigating Temporal Kinematic Differences Caused by Unexpected Stimulation during Gait Termination through the
Xi-Ang Shen1, Xuanzhen Cen2,3, Yang Song2,3
1Department of Physical Education, Ningbo University of Finance and Economics, Ningbo 315175, China.
Biomed Research International
|July 14, 2022
Summary
The variance equality test effectively identifies gait variability differences during planned and unplanned gait termination. Unplanned gait termination shows greater lower limb joint variability, crucial for injury prediction.
Area of Science:
- Biomechanics
- Human Movement Analysis
- Gait Analysis
Background:
- The variance equality test is established for steady-state gait analysis.
- Temporal variability during gait subtasks, particularly unplanned gait termination, remains poorly understood.
Purpose of the Study:
- To verify the waveform-level variance equality test's efficacy in gait subtasks.
- To compare temporal kinematic variability between planned gait termination (PGT) and unplanned gait termination (UGT) from unexpected stimulation.
Main Methods:
- Thirty-two asymptomatic males performed PGT and UGT tasks.
- A Vicon motion capture system recorded lower extremity kinematics.
- Waveform-level variance equality tests compared kinematic variability across gait phases.
Main Results:
- Unplanned gait termination (UGT) revealed significantly greater kinematic variance in most lower limb joints, especially during stimulus delay and reaction phases.
- Planned gait termination (PGT) showed significantly greater variance only in MPJ sagittal and frontal planes during the early stimulus delay phase.
- The variance equality test successfully identified temporal differences in kinematic variability between PGT and UGT.
Conclusions:
- The variance equality test is a valuable tool for comparing temporal variability differences in biomechanical variables during complex gait tasks.
- Understanding kinematic changes during UGT is essential for interpreting lower limb biomechanical function and predicting injuries.
- Unexpected stimuli during gait termination significantly alter lower limb joint variability.
