As Chinese earn more disposable income, many are eating fattening snack foods and gaining weight. The aerobic exercises are part of the nation's 10-year plan to improve worker health.

AIM: to observe the effects of aerobic body building exercise for 18 weeks in 37 mid-aged and old women, and provides scientific basis for those women to choose effective body building exercise.

The aerobic gymnastics can also greatly improve the indexes of their heart function and stimulate their alveolar function.