Largest lyapunov exponents of ankle, knee and hip flexion during gait

McGleish, Olivia Mae and Tan, We-Qing and Hill, Sophie and Hayashibara, Emma and Watson, Helena and Riches, Philip (2018) Largest lyapunov exponents of ankle, knee and hip flexion during gait. In: XV International Symposium on 3-D Analysis of Human Movement, 2018-07-03 - 2018-07-06, University of Salford.

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Abstract

Chaos is the deterministic yet non-periodic behaviour of a system [1]: every chaotic cycle is physically determined by an unbroken chain of observations, but which gives results that appear unpredictable [2]. Chaos theory has been applied to gait variability previously (e.g. [3], [4]) and may be useful in providing an insight into the biomechanical effect of musculoskeletal pathology [3]. Current technology facilitates extensive data collection, ideal for gait variability studies, and we wished to utilise this capability to simultaneously investigate variability in ankle, knee and hip flexion over a 20 minute period.

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