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The Head-Neck Sensory Motor System$
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Alain Berthoz, Werner Graf, and P. P. Vidal

Print publication date: 1992

Print ISBN-13: 9780195068207

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780195068207.001.0001

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Head Kinematics during Complex Movements

Head Kinematics during Complex Movements

(p.587) Chapter 95 Head Kinematics during Complex Movements
The Head-Neck Sensory Motor System

Thierry Pozzo

Alain Berthoz

Loïc Lefort

Oxford University Press

This purpose of this study is to investigate head kinematics during acrobatic leaps, where only visual and vestibular receptor information is used. This study demonstrates the existence of intermittent head stabilizations during extreme high-speed body movements and their role in the control of acrobatic leaps. The kinematics of the movements of five athletes were recorded and analyzed using an optical automatic TV image processor. The results present the general characteristics of body kinematics during backward somersaults and the angular displacement of the head. This study also attempts to answer the questions: (1) why is the head stabilized? and (2) what determines the mean direction of head stabilization?

Keywords:   head kinematics, acrobatic leaps, vestibular receptor information, head stabilization, body movements, angular displacement

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