Results 171 to 180 of about 3,790 (207)

On the Technique of Speed Skating

International Journal of Sport Biomechanics, 1987
The mechanics of speed skating, as many other endurance sports, can be described by an energy flow equation. With such an equation the influence of suit, local pressure, altitude, shielding, and body position on speed is predicted. Next to these model predictions, the peculiar properties of the skating technique are discussed and their practical ...
Gerrit Jan van Ingen Schenau, Ruud W. de Boer, Gert de Groot   +2 more
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A geometrical model of speed skating the curves

Journal of Biomechanics, 1988
The centripetal force in speed skating the curves has to be delivered by the push off force which also does the external work to maintain the speed. Based on the geometry of the speed skating oval and the sideward push off characteristics in speed skating, a mathematical model of the power output in skating the curves was deduced. The power required to
R W, de Boer, G J, Ettema, H, van Gorkum, G, de Groot, G J, van Ingen Schenau   +4 more
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Injuries in Short Track Speed Skating

The American Journal of Sports Medicine, 2003
Background Little is known about the pattern of injury in short track speed skating. Purpose To investigate the incidence and characteristics of injuries in short track speed skating.
Andrew, Quinn, Victor, Lun, John, McCall, Tom, Overend   +3 more
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A power equation for the sprint in speed skating

Journal of Biomechanics, 1992
An analysis of the start of the 500 m speed skating races during the 1988 Olympic Winter Games showed a remarkably high correlation between the acceleration of the skater in the first second of the sprint and the final time (r = -0.75). In this study a power equation is used to explain this high coefficient of correlation.
J J, de Koning, G, de Groot, G J, van Ingen Schenau   +2 more
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Ice friction during speed skating

Journal of Biomechanics, 1992
During speed skating, the external power output delivered by the athlete is predominantly used to overcome the air and ice frictional forces. Special skates were developed and used to measure the ice frictional forces during actual speed skating. The mean coefficients of friction for the straights and curves were, respectively, 0.0046 and 0.0059.
J J, de Koning, G, de Groot, G J, van Ingen Schenau   +2 more
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Speed Skating Modeling

2013
Advice about the optimal coordination pattern for an individual speed skater to reach their optimal performance, could well be addressed by simulation and optimization of a biomechanical model of speed skating. But before getting to this optimization approach one needs a model that matches observed behavior.
A. L. Schwab, D. M. Fintelman, O. den Braver   +2 more
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The Association Between Changes in Speed Skating Technique and Changes in Skating Velocity

International Journal of Sports Physiology and Performance, 2014
A meaningful association between changes (Δ) in push-off angle or effectiveness (e) and changes in skating velocity (v) has been found during 5000-m races, although no significant association was found between changes in knee (θ0) and trunk angle (θ1) and Δv.
Noordhof, D.A., Foster Jr., C.C., Hoozemans, M.J.M., de Koning, J.J.   +3 more
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Coordination of leg muscles during speed skating

Journal of Biomechanics, 1991
Five speed skaters of elite performance level and six speed skaters of trained level were subjected to an inverse dynamical analysis during speed skating. Push-off forces were registered by means of special skates. Myoelectric activity (EMG) of ten leg muscles and cinematographic data were recorded.
J J, de Koning, G, de Groot, G J, van Ingen Schenau   +2 more
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The influence of air friction in speed skating

Journal of Biomechanics, 1982
With the use of a wind tunnel the air friction force Fw on six speed skaters of different body builds was measured. The dependence of the drag coefficient CD on air velocity v and the influence of different skating postures on drag were investigated.
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Hemoglobin/myoglobin desaturation during speed skating

Medicine &amp Science in Sports &amp Exercise, 1997
The characteristic low "sitting" position of competitive speed skating has been shown to result in a right shifted heart rate-VO2 curve and elevated submaximal blood lactate values compared with running or cycling. This is thought to be a consequence of reduced blood flow and subsequent oxygen delivery to the exercising muscle while speed skating. Duel
K W, Rundell, S, Nioka, B, Chance
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