1, before the muscles and bones are stretched, the body is easily injured.

2. Exercise spinning has a great force on the knee joint and waist, so if you have pain in the knee joint and waist, it will increase the injury.

3. If you don't relax, that is to say, you should pay attention to the correct posture and appropriate resistance. The calf is easy to grow muscles, too heavy will hurt the knee.

Extended data:

Taboo action:

1. Use load-bearing equipment on bicycles? Lifting weights in the car is ineffective and unsafe. It is most effective to train the weight of exercise muscles in a stable state. Ride with one hand or open hands? When standing or jumping, you may be seriously injured; When climbing in a sitting position, it will cause uneven stress on the waist.

2. toe down when riding a bike? It can cause inflammation of joints and numbness of feet. When pedaling, your feet should be parallel to the ground and placed in the center of the pedal.

3. No resistance at all? Pedaling without resistance wastes exercise time, and pedaling without resistance can also cause sports injuries at high speed.

4. Stepping backward will release the pedal, which may cause injury when the pedal falls. Studies have proved that backward and forward use the same muscle group and consume the same calories, so backward has no advantage.

5. Use the handle when sitting? It may lead to excessive bending of hip joint and spine, leading to low back pain. When you need to look up, this grip is easy to cause neck strain.

6. Stretch your feet on the handlebars? Maybe most people don't have enough flexibility to stretch their feet on the handlebars.

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