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 contractions of the heart increases and the amount of blood pumped out each time increases.

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. So when exercise continues and muscles contract for a long time, the heart and lungs will

Efforts must be made to supply 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 practice:

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. lift the dumbbell

Lift straight arms forward, sideways, etc. Can exercise shoulder and chest muscles. In addition, dumbbells can also exercise lower limb muscles, such as squatting with one foot and jumping with both feet.

Key points of big ball practice:

First, sit on the ball, tuck in your abdomen and hold your chest out, gently hold your hand on the ball, then lift your legs and stretch your toes, completely tighten your thigh muscles and extend outward. Second: put your head and shoulders on the ball and stick to the back of your arm.

Hold your lower back with the ball and five fingers, and lift your hips up. Feet are hip joint width, and all feet are on the ground. This action exercises the buttocks and calves.