TY - GEN
T1 - Dynamic analysis of human walking
T2 - ASME 1999 Design Engineering Technical Conferences, DETC 1999
AU - Dingwell, Jonathan B.
AU - Cavanagh, Peter R.
AU - Sternad, Dagmar
N1 - Funding Information:
This research was partially supported by a grant from the Graduate Student Grant-In-Aid program of the American Society of Biomechanics. The authors thank Dr. Joseph P. Cusumano for many helpful discussions and suggestions.
Publisher Copyright:
© 1999 American Society of Mechanical Engineers (ASME). All rights reserved.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 1999
Y1 - 1999
N2 - Correlation dimensions and average maximum finite-time Lyapunov (MFTL) exponents were used to examine the kinematics of continuous level walking in human subjects. Comparisons were made between overground (OG) and motorized treadmill (TM) walking in young healthy subjects and between diabetic neuropathic (NP) patients and healthy controls (CO) during overground walking. Surrogate data were used to examine the stochastic nature of the stride-to-stride variability seen in these walking patterns. There were three primary results. First, the motorized treadmill significantly constrained the neuromuscular control and normal movement kinematics of walking. Second, NP patients demonstrated greater correlation dimensions in their movement patterns and slowed their walking speeds to maintain maximum upper body stability during unrestricted walking over level ground. Third, stride-to-stride fluctuations in walking kinematics could be clearly distinguished from correlated Gaussian noise and demonstrated changes in their structure that were related to the loss of peripheral sensation.
AB - Correlation dimensions and average maximum finite-time Lyapunov (MFTL) exponents were used to examine the kinematics of continuous level walking in human subjects. Comparisons were made between overground (OG) and motorized treadmill (TM) walking in young healthy subjects and between diabetic neuropathic (NP) patients and healthy controls (CO) during overground walking. Surrogate data were used to examine the stochastic nature of the stride-to-stride variability seen in these walking patterns. There were three primary results. First, the motorized treadmill significantly constrained the neuromuscular control and normal movement kinematics of walking. Second, NP patients demonstrated greater correlation dimensions in their movement patterns and slowed their walking speeds to maintain maximum upper body stability during unrestricted walking over level ground. Third, stride-to-stride fluctuations in walking kinematics could be clearly distinguished from correlated Gaussian noise and demonstrated changes in their structure that were related to the loss of peripheral sensation.
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U2 - 10.1115/detc99-vib-8360
DO - 10.1115/detc99-vib-8360
M3 - Conference contribution
AN - SCOPUS:85101113867
T3 - Proceedings of the ASME Design Engineering Technical Conference
SP - 2791
EP - 2799
BT - 17th Biennial Conference on Mechanical Vibration and Noise
PB - American Society of Mechanical Engineers (ASME)
Y2 - 12 September 1999 through 16 September 1999
ER -
