Personally, I think freestyle is the only swimming style that can maintain high intensity and continuous exercise. Losing weight (more precisely, reducing fat, consuming glycogen, fat and protein) is also a way to keep the heart rate within a certain range and maintain it for a period of time. Effect, so the natural style is the best. Then let me analyze the following:

If breaststroke is really tiring for the current popular wave frog technique, then the first half of the arm is not bent, the palm is wider than the elbow and shoulder, and the gravitational potential energy is converted into kinetic energy when the leg kicks. Anyway, I can feel my heart rate when I swim 50 meters. . Heart rate can easily exceed the range of heart rate reduction, and it can easily become a cardiopulmonary exercise test. If ordinary people go swimming in this way, it is estimated that 50 meters, 100 meters (half a circle) will take a break, and when the heart rate drops again, it is likely that they will eventually find 4500 meters within one hour. . . If you use old-fashioned frogs, the distance will be long and your heart rate will not rise. You find that you have an influence on you.

Don't talk about backstroke, unless the driveway hasn't been knocked out, hit your head, get old, and lose concentration. ?

Butterfly, I don't know the title level. In the same training as professional training, can the butterfly swim to a distance above 1000m? When most people see the basic meaning of breaststroke, they will have a rest at 50 meters. Not many swimmers can swim the 500m butterfly. If you want to exercise your waist, abdomen and legs, you can practice butterfly legs with a floating board. 100 meters should be able to exercise in groups of 5- 10 people. Remember to hold your head high all the time! Don't use your head next time. Breathe once! Stay on the water).

Here's freestyle, long-distance weight loss, short-distance cardio plus fat. A group of 400-600, rest at intervals of 5-6 1 minute, swim for 400 meters/10 minutes or 600 meters/15 minutes at most in each group, and just eat some eggs and fruits (I don't eat them every time). Don't think 10 minutes is fast. /kloc-The training standard for children aged 0/0 must be within 6 minutes and 40 seconds in each group. If it is short-distance drying, it is within 50m, 40-50s. According to the level, the heart rate should be kept at around 140. In group 20-40, the intermittent heart rate should be 10 second. In short, it is necessary to swim up, and it is very hot and effective to swim to the face.