NDLI: Lower limb contribution in kayak performance: modelling, simulation and analysis

Content Provider	Springer Nature Link
Author	Begon, Mickaël Colloud, Floren Sardain, Philippe
Copyright Year	2010
Abstract	Lower limb contribution in flatwater kayaking is difficult to quantify experimentally because lower-limbs and pelvis are hidden in the kayak. A computer simulation model was developed to assess the lower limb contribution to kayak performance. Three simulated movements were compared in terms of paddle tip velocity, force impulse, and mechanical work. The pelvis motion increased the paddle tip velocity by 0.15 m s$^{−1}$ at the stroke beginning and 0.34 m s$^{−1}$ afterward. The propulsive impulse was also modified by pelvis rotation with a 3.5 N s increase per stroke. For a set performance, the co-ordination involving the lower limbs decreased the mechanical work by 20 J. The above results were obtained by modelling the Ergometer-Athlete-Paddle {EAP} system using 18 bodies and 31 degrees of freedom. The motion capture data were transformed in generalized coordinate time histories by solving an inverse kinematics problem with optimization in order to assess both lower limb and upper limb positions and produce a cyclic motion. Then the {EAP} was simulated based on Lagrangian dynamics with Lagrange multipliers to introduce the paddle forces. Finally, the joint torques were calculated by solving an inverse dynamics problem with optimization in order to ensure a good distribution of lower limbs actuating torques.
Starting Page	387
Ending Page	400
Page Count	14
File Format	PDF
ISSN	13845640
Journal	Multibody System Dynamics
Volume Number	23
Issue Number	4
e-ISSN	1573272X
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-02-05
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biomechanics Sport ergometer Kayaking Modelling Inverse kinematics Inverse dynamics Simulation Automotive Engineering Mechanical Engineering Electrical Engineering Optimization Vibration, Dynamical Systems, Control
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Mechanical Engineering Aerospace Engineering Modeling and Simulation Computer Science Applications

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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