A, from bottom to top.

First the limbs, then the trunk.

C, from top to bottom

D, trunk first and then limbs

Aerobics is a group exercise, music, dance as a whole, the pursuit of human health and beauty. Therefore, aerobics has many social and cultural functions such as sports, dance, music and aesthetic education. Aerobics is a good fitness program to control the rapid weight gain after middle age.

Popular calisthenics at home and abroad can be roughly divided into six categories: series calisthenics compiled according to different ages; Male and female calisthenics compiled by different genders; Single, double and group aerobics compiled according to the number of people; Improve posture and posture according to aerobics and aerobics; Exercise all parts of the body according to aerobics; Press aerobics with bare hands or light instruments.

Aerobics can be divided into two categories: fitness and competition. Fitness aerobics aims at fitness exercise, while competitive aerobics aims at training according to rules, and finally to participate in competitions.

Men's aerobics pays attention to the training of shoulders, chest, back and abdomen; Women's aerobics pays attention to the training of upper chest, waist, abdomen and buttocks. Aerobics for young men and women is strong, extensive, expensive, elegant and full of characteristics of the times, and is deeply loved by young people.

All kinds of people, mainly young people, mostly young women. Including obviously overweight people, people with overweight height standards, obese people, people who don't like or lack exercise, people with excessive subcutaneous fat, and people with poor physical sensitivity and coordination. Children and the elderly are not suitable. Taboos for active diseases.