Key points of aerobic exercise: The purpose of aerobic exercise is to enhance cardiopulmonary endurance. During exercise, because muscle contraction needs a lot of nutrition and oxygen, the number of heart contractions increases, and the amount of blood pumped out each time is more than usual. At the same time, the demand for oxygen has also increased, the number of breaths is more than normal, and the degree of lung expansion is also greater. Therefore, when the exercise continues and the muscles contract for a long time, the heart and lungs must strive to provide oxygen to the muscles and take away the waste in the muscles. Duoyan Zheng did well in this exercise. Can be effectively combined with weight loss exercise to achieve results.

Key points of dumbbell exercise: People are used to equating dumbbell fitness with bodybuilding. In fact, the dumbbell training we usually do, whether it is dumbbell weight or training method, is different from bodybuilding. Keep your arms straight forward and lift dumbbells sideways to exercise your shoulder and chest muscles. In addition, dumbbells can also exercise lower limb muscles, such as squatting with one foot and jumping with both feet.