Gait stability during shod and barefoot walking and running on a treadmill assessed by correlation entropy
Lamb, Peter; Stöckl, Michael
This study tests correlation entropy, 𝐾2, as a measure of stability for gait analysis. An average of 13 strides from 10 participants in each combination of one footwear (barefoot vs shod) condition and one gait mode (walking vs running) were collected during treadmill walking and running. Sagittal plane ankle, knee and hip angular displacement and velocity data were used for analysis. Two-way repeated measures ANOVA showed a main effect for gait mode ( 𝑝=.03 ) – running had lower 𝐾2 than walking, indicating higher stability. Although the sample of strides and participants was small, we speculate that the greater inertia for running helped stabilize movement control, making the running coordination pattern more resilient against small stride-to-stride perturbations.
Editor: Lames, Martin; Saupe, Dietmar; Wiemeyer, Josef
Conference: International Symposium on Computer Science in Sport, Konstanz, Germany
Series number: 663
Keywords: Correlation entropy; Gait; Biomechanics; Dynamical systems
Research Type: Conference or Workshop Item (Paper published in proceedings)