BIO Web of Conferences
Volume 1, 2011The International Conference SKILLS 2011
|Number of page(s)||4|
|Published online||15 December 2011|
An Experimental Study of Muscle Coordination and Function during Human Locomotion
Graduate School of Engineering Science, Osaka University, Japan
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How humans solve the ill-posed problem of motor control is still a mystery. In this paper, we attempt to decompose human walking and running as the main movements of a leg into units of motor function. We introduce the key concept of “A-A ratio,” deﬁned as the ratio of an extensor muscle’s electromyography (EMG) signal to the sum of agonist and antagonist muscles’ EMG signals. Human walking and running are then decomposed into two units of motor function by applying Principal Component Analysis (PCA) to the A-A ratio dataset. The kinematic meanings of these units are also experimentally shown by using a human-like musculoskeletal leg robot.
© Owned by the authors, published by EDP Sciences, 2011
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