(1) Enhance muscle strength. Through weightlifting training, women's maximum strength load can be increased by 30%-50%. It is not only easier to hold children, wash clothes and do housework, but also difficult to get hurt when engaging in other activities.

(2) burning body fat. Women can lose 1.6 kg of fat and "build" nearly 1 kg of muscle by lifting weights 2-3 times a week for two months in a row. Moreover, the muscles obtained through exercise will consume calories continuously, and 500 grams of muscles will burn 35 to 50 calories every day. General aerobic exercise can't achieve this effect.

(3) Don't worry that the muscle lines are too masculine. Because the content of hormones promoting muscle growth in women is much lower than that in men, women usually don't grow particularly big because of weightlifting training. This is one of the reasons why young American women are keen on strength training.

(4) increase bone density. Through weightlifting training, the calcium content in women's spine can be increased by 13% in just half a year. With proper diet, osteoporosis caused by calcium deficiency can be well resisted. This is the main reason why many middle-aged and elderly American women are keen on weightlifting training.

2. Disadvantages of girls' fitness. The venue is informal, the coach is unprofessional, and the fitness exercise is counterproductive. Irregular calisthenics aggravate physical strain, but weaken physical fitness. Blind trial of fitness equipment, no training, wasted a day's fitness time.