1. Hold your hands back to the position where your hips are concentrated, hold your chest out and bend your knees so that your knees are as close to your chest as possible, forming a V-shape;

2. Pedal the bicycle clockwise and counterclockwise with both feet and draw a cross circle. In the process of drawing a circle, keep your thighs as close as possible to your chest and keep your whole body V-shaped; Draw 1 circle on the left and right sides respectively, and draw 1 time. Do it 25 times each;

3, always pay attention to the upper body to be straight and keep at least 45 degrees with the ground. Upgraded version: You can raise your hand as the first step after proficiency, and other points are the same as the standard version.