Giving the force direction

Analysis of speed skater push off forces with respect to an inertial coordinate system

Conference paper (2016)

Authors

E. van der Kruk Biomechatronics & Human-Machine Control - Mechanical, Maritime and Materials Engineering
F.C.T. van der Helm Biomechatronics & Human-Machine Control - Mechanical, Maritime and Materials Engineering
A.L. Schwab Biomechatronics & Human-Machine Control - Mechanical, Maritime and Materials Engineering
H.E.J. Veeger Biomechatronics & Human-Machine Control - Mechanical, Maritime and Materials Engineering , Biomechanical Engineering
Research Group
Biomechatronics & Human-Machine Control (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2016 E. van der Kruk, F.C.T. van der Helm, A.L. Schwab, H.E.J. Veeger
Kinetics Power Kinematics Winter Sports Speed Skating
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Published Date

2016

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Biomechanical Engineering

Research Group

Biomechatronics & Human-Machine Control

Abstract

Pushoff in speed skating requires an extensive motion strategy. During speed skating the skater continuously changes the lean and steering angle of the skate and therewith the direction of push-off, The forces in an inertial coordinate system can give insight into what amount of the push-off force is directed into the forward motion. In this paper we present the preliminary results of a study on the global forces in speed skating. From a mechanical viewpoint, increasing the lean angle of the skate seems beneficial at the end of the stroke, but detrimental at the start of the stroke. Furthermore the necessity of the
lateral force on the skate in the overall force production is a variable of interest for further investigation, since dynamically it has a disadvantageous effect on the forward motion.