The purpose of this study was to clarify kinematical characteristics of elite skiers during diagonal stride technique in cross-country skiing. Senior male cross-country skiers participated in a 15-km classical race. Diagonal stride technique of each skier was videotaped at a 6-degree uphill section. Subjects were classified into high- and low- performance groups according to its results. It was revealed that the high-performance skiers (1) achieved a longer stride length, (2) had a longer ski gliding from the ski takeoff to the next pole contact, (3) extended the elbow at an earlier point of time after the pole contact, and (4) let the ski and the snow surface gripped quickly and then extended knee joint faster and larger compared to the low performance skiers during the diagonal stride technique.
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