Abstract
We have developed a system by which the force on a sled can be measured, using the computer graphics of the Nagano Olympic luge course. In the luge run, the athletes add their shoulder and leg forces to the sled to control the running course. It is considered that the ideal force exertion must take into account, for example, the forces of the right shoulder and left leg when running a right curve. Accordingly, when the force exceeded a threshold level which was defined by a certain formula, we named it H. On the contrary, when force was under the level, it was determined as L. In this way, HL...patterns were made. Then, comparing with the ideal force, we can examine the matched rate. Applying this method, we found that the higher level athletes rates were greater than the lowers.