A simulation of speed skating performances based on a power equation.
Using kinetics of aerobic and anaerobic power production as measured during supramaximal bicycle tests of five speed skaters of international level, a model of the kinetics of power production during skating is obtained. Velocity time courses of a generalized speed skater were calculated for all Olympic distances (500 m, 1000 m, 1500 m, 5000 m, and 10,000 m) by means of simulation of an equation of produced power, power dissipated to air and ice friction, and rate of change of kinetic energy of the skater. Different strategies of distribution of anaerobic energy during a race were compared. With a single equation it appeared to be possible to simulate the mean split and final times of the five distances realized during the Winter Olympics 1988 within an error which does not exceed 1.6% (mean error in final times: 0.8%). The results show that a fast acceleration (high initial power output) is crucial for the sprinting events (500 m and 1000 m). It is shown that this initial power output level is even more important than the total amount of energy available for a 500 m and 1000 m race. For the long distances the simulations show that skaters should combine a fast but short lasting start with a constant power output following the start in order to minimize air frictional losses.
van Ingen Schenau
G J
GJ
Faculty of Human Movement Sciences, Free University, Amsterdam, The Netherlands.
de Koning
J J
JJ
de Groot
G
G
D001835:Body Weight; D004734:Energy Metabolism / Q000502:physiology*; D005080:Exercise Test; D006801:Humans; D007700:Kinetics; D009068:Movement / Q000502:physiology; D012861:Skating; D013223:Statistics as Topic