Small knowledge of sports and health

Fast running is mainly based on strengthening anaerobic exercise, such as various accelerated running and repeated running, which can effectively develop speed quality. & ltBR & gt7. Common sense of swimming hygiene: 1. Only those who pass the medical examination can swim. You must take a shower before swimming to keep the swimming pool clean. Don't go into the water on an empty stomach or after a full meal. 4. Don't eat in the water. 5. It is not suitable for girls to swim in the water during menstruation. & lt/DIV & gt； At the beginning of strength training, because more muscle fibers contract at the same time, muscles look more developed and their strength increases. However, at this time, the muscles have not changed qualitatively. Only by perseverance and long-term exercise can muscle fibers become thicker and muscles really develop. & ltBR & gt5. If you want to lose weight, you need more than 30 minutes of moderate and low-intensity exercise to make full use of it.