Useful. Jiamusi happy dance step is a kind of aerobics that combines sports, dance, aerobics and other forms of exercise. Easy to learn, good in rhythm, suitable for middle-aged and elderly people to practice. Through exercise, you can move people's shoulders, neck, waist, knees, ankles and other joints, so as to achieve the effects of strengthening physical fitness, preventing diseases, improving health, shaping body shape and controlling weight, and at the same time, you can also be cheerful and cultivate sentiment. Jiamusi happy dance step has the great concept of scientific fitness, and it is arranged with aerobic aerobics during the March, lasting for 30 minutes each time.