Stability and the time-dependent structure of gait variability in walking and running

Participants were asked to walk and run continuously (5 min trials) at speeds associated with preferred gait transition speeds. During slow running the local dynamic stability of the head was decreased compared with fast walking, with the reverse being true for the local dynamic stability of the ank...

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Bibliographic Details
Published in:Human movement science 2009-02, Vol.28 (1), p.113-128
Main Authors: Jordan, Kimberlee, Challis, John H., Cusumano, Joseph P., Newell, Karl M.
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Female
Fluctuation Analysis (DFA)
Fundamental and applied biological sciences. Psychology
Gait transition
Humans
Locomotion
Models, Psychological
Running
Stability
Time Factors
Variability
Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
Walking
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Summary:Participants were asked to walk and run continuously (5 min trials) at speeds associated with preferred gait transition speeds. During slow running the local dynamic stability of the head was decreased compared with fast walking, with the reverse being true for the local dynamic stability of the ankle. The standard deviation of relative phase of the knee and ankle also was greater during slow running than fast walking. These findings for stability were mirrored in the detrended fluctuation analysis of the peak to peak interval of the head and ankle. Taken collectively these results support the proposition that larger long range correlations in the stride interval are associated with decreases in measures of stability.
ISSN:0167-9457
1872-7646
DOI:10.1016/j.humov.2008.09.001