What are the two technical rules involved in cross-country skiing competition?

The basic techniques and methods of cross-country skiing can be divided into flat skiing, uphill skiing, downhill skiing and orienteering. There are many ways to slide on the flat ground, but the main ones are two-step alternate sliding and simultaneous propulsion sliding. The basic posture of two-step alternating sliding and the cooperation of limbs, like striding, periodically slide on the snow surface in turn under the thrust of pedals and the support of hands.

Because of the action structure of this technology, the burden on all parts of the body can be more uniform, so it can save physical strength and delay fatigue. Especially in the case of poor smoothness of snow surface, the efficiency is more obvious than other sliding methods.

Extended data:

Skiing precautions:

When a novice chooses a ski resort, the slope should not be too steep, preferably around 6, and the snow trail should be wide, about 50 meters. For beginners, it is very important to have a ropeway to transport skiers (traction ropeway is not conducive to skiers' rest), and the snow quality is good. A large ski machine is needed to trim and maintain the snow surface. ?

Beginners mainly learn how to use alpine skiing equipment, three basic downhill techniques, including straight downhill, inclined downhill and plow downhill, and two turning techniques, namely plow turning technique and plow swing turning technique.

Baidu encyclopedia-cross-country skiing