Note:1. Do warm-up exercises before training;2. Gradually increase the burden within the range that the individual can bear;3. Don't overtrain, so as not to cause injury;4. Beware of people with waist injuries.
Note:1. Do warm-up exercises before training;2. Gradually increase the burden within the range that the individual can bear;3. Don't overtrain, so as not to cause injury;4. Beware of people with waist injuries.