Push-off mechanics in speed skating with conventional skates and klapskates

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Push-off mechanics in speed skating with conventional skates and klapskates.

PURPOSE Personal and world records in speed skating improved tremendously after the introduction of the klapskate, which allows the foot to plantar flex at the end of the push-off while the full blade continues to glide on the ice. The purpose of this study was to gain insight into the differences in skating technique with conventional versus klapskates and to unveil the source of power enhance...

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Changes in speed skating velocity in relation to push-off effectiveness.

UNLABELLED Speed skating posture, or technique, is characterized by the push-off angle or effectiveness (e), determined as the angle between the push-off leg and the ice; the preextension knee angle (θ(0)); and the trunk angle (θ(1)). Together with muscle-power output and environmental conditions, skating posture, or technique, determines velocity (v). PURPOSE To gain insight into technical v...

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Differences of Posture on Push-off Phase between Actual Speed Skating and Slide-board Training

The slide-board training is a feasible technology to exercise skating during the off-season. While slide-board is much different from ice surface of the actual skating situation, it may distort actual skating posture. The purpose of this study was to analyze the differences in posture during push-off phase between an actual speed skating condition and on slideboard. The result showed that on th...

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From a One-Legged Vertical Jump to the Speed-Skating Push-off: A Simulation Study

To gain a better understanding of push-off mechanics in speed skating, forward simulations were performed with a model comprising four body segments and six muscles. We started with a simulated maximum height one-legged jump, obtained by optimization of muscle stimulation time histories. The simulated jump was very similar to one-legged jumps produced by a human, indicating that the model was r...

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Ice friction in speed skating: can klapskates reduce ice frictional loss?

PURPOSE Reducing ice friction was one of the motives for developing the klapskate. However, the magnitude of power dissipation that occurs with conventional skates when a skater plantar flexes his ankle and the tip of the blade is pressed into the ice has not been quantified previously. In this study, we examine how ice friction varies during a single stroke with conventional skates and estimat...

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ژورنال

عنوان ژورنال: Medicine & Science in Sports & Exercise

سال: 2000

ISSN: 0195-9131

DOI: 10.1097/00005768-200003000-00013