First, people with low body fat rate and weight, such thin friends, suggest practicing muscles before losing weight. Exercising muscles first can not only increase muscle content, but also reduce fat.
The second type: the average person whose body fat rate and weight are within the standard range. If you are such a person, you can lose weight first and then exercise your muscles, or exercise your muscles first and then lose weight. There is no distinction between good and bad. Just choose a fitness habit that suits you.
The third type: obese people with high body fat rate and weight. For this kind of people, it is suggested to lose weight first, then do muscle exercise, do more aerobic exercise, improve heart and lung ability, improve physical fitness, and prepare for later muscle exercise, because obese people who do muscle weight training or muscle strength training do not have enough muscle strength to complete, and these exercises have no effect on burning fat.