When running, the swing arm should move back and forth with the shoulder as the axis, and the range of left and right movement should not exceed the body midline. Standing upright from the neck to the abdomen, rather than leaning forward (unless accelerating or going uphill) or leaning back, is beneficial to breathing, balance and striding.

Keep your waist naturally upright, not too straight. Swing your thighs and knees forward, not up. The foot should fall about a foot in front of the body, close to the midline.

If the stride is too big and the calf stretches too far forward, it will follow the ground with its feet, which will cause braking reaction and cause great damage to bones and joints. When landing correctly, land with the middle of the sole of your foot, so that the impact force can quickly spread to the whole sole.