Track and field 400-meter running skills, let's talk about curve skills first.

When running straight, the upper body leans forward slightly; When running in a corner, the amplitude of the inner swing arm should be small and the amplitude of the outer swing arm should be large. 2. Exercise flexibility at ordinary times, simply stretch ligaments and increase the stride; Practice leg strength, such as squats, and increase the step frequency by 3. Run more, improve heart and lung function, and find your own breathing joints. ...