Everyone can ride a bike, but not everyone knows what to pay attention to when riding a bike, especially when riding a bike. Riding posture experts believe that "the wrong riding method not only affects the exercise effect, but also easily causes harm to the body." Common problems in riding posture are, for example, legs rolled outward, hunched waist and so on. The correct posture is: lean forward slightly, straighten your arms, tighten your abdomen, use abdominal breathing, keep your legs parallel to the beam of the car, keep your knees and hips in harmony, and pay attention to the riding rhythm. The action of pedaling is generally believed that pedaling means that the foot steps down and the pedal rotates once, so that it can move forward. The correct pedaling should be divided into four coherent movements: pedaling, pulling, lifting and pushing. When riding, the sole of the foot first steps down, then the calf retracts backward and pulls back, then lifts up and finally pushes forward, thus just completing a pedaling cycle. Pedaling with such rhythm can not only save physical strength, but also improve speed. Ignoring frequency and unilaterally pursuing strength and speed, many young people who have just started are eager for "more quantity" and "speed". If they ride 50 kilometers at a time and don't ride long distances, they only pursue speed and strength on the way, which will actually do great harm to their health, and serious water will appear in their knees. Experts advise beginners to find a suitable frequency before increasing the amount of exercise. Ordinary people pedal about 60 to 80 times a minute. Every time you ride, you should have at least 20 minutes of high-frequency and low-speed warm-up (that is, more laps and less effort) to make your body sweat slightly, otherwise sudden and strenuous exercise will easily lead to dizziness, nausea and other symptoms.