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Related Experiment Video

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Comparative Analysis of Lower Limb Kinematics between the Initial and Terminal Phase of 5km Treadmill Running

Comparative Analysis of Lower Limb Kinematics between the Initial and Terminal Phase of 5km Treadmill Running

Published on: July 17, 2020

Acceleration patterns in the lower and upper trunk during running.

Masahiro Kawabata¹, Kenta Goto, Chiho Fukusaki

¹a The University of Tokyo , Department of Human and Engineered Environmental Studies , Kashiwa , Japan.

Journal of Sports Sciences

|July 25, 2013

Summary

This summary is machine-generated.

This study found that 3D trunk accelerations during running correlate with gait cycles and stride duration. However, test-retest reliability varied, especially for anterior-posterior acceleration at slower speeds.

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Area of Science:

Biomechanics
Sports Science
Human Movement Analysis

Background:

Understanding running mechanics is crucial for injury prevention and performance optimization.
Three-dimensional (3D) acceleration analysis offers a portable method to assess running gait.
Trunk accelerations provide insights into the complex dynamics of the running gait cycle.

Purpose of the Study:

To correlate 3D trunk acceleration patterns with the running gait cycle.
To validate stride duration estimation using acceleration data.
To investigate speed-dependent changes and test-retest reliability of trunk accelerations during running.

Main Methods:

Thirteen healthy males completed treadmill and overground running trials at slow, preferred, and fast speeds.
3D accelerations were measured at the lower (L3) and upper (ensiform) trunk, synchronized with video.
Analysis included amplitude, root mean square of acceleration, stride duration, ANOVA, and Bland-Altman analysis for reliability.

Main Results:

Significant changes in acceleration patterns were observed relative to foot strike.
Stride durations derived from vertical accelerations closely matched video-based estimations.
All parameters showed significant speed-dependent effects, with notable variability in test-retest reliability for anterior-posterior acceleration.

Conclusions:

3D trunk acceleration analysis is a valid method for estimating stride duration during running.
Running speed significantly influences trunk acceleration parameters.
Test-retest reliability is a concern, particularly for anterior-posterior trunk accelerations, necessitating careful consideration in practical applications.