Exercise Intervention For Prevention Of Sarcopenia In The Elderly

PURPOSE: The purpose of this study is to evaluate the preventive effects of different exercise interventions on sarcopenia in elderly women by take exercise intervention on Chinese female elderly population. METHODS: Subjects: 260 sarcopenia female subjects were from China (61.2 ± 10.1 yrs) and 48 of them were lost to follow-up. They were randomly divided into Aerobic Exercise(AE) intervention group (n = 75), Resistance Exercise(RE) intervention group (n = 68) and Control group (n = 69). All signed informed consent.Intervention methods: 3 times a week, 60 minutes/per, 12 weeks. AE: Walking, jogging, swimming, tai chi and aerobics. RE: With the help of a chair,elastic belt,dumbbell for large muscle groups and multi-joint training, respectively by 40%, 50%, 60% 1RM exercise for 4 weeks. Test indicators: Height, Weight, Muscle Mass, Grip Strength (GS), Chair Sit to Stand (STS), Timed Up and Go (TUG). They were tested before intervention and 12 weeks after training. ANOVA by using SPSS20.0. RESULTS: 1. RE can significantly increase muscle mass. The muscle mass increased by 2.8% in the RE group significantly higher than that in the other two groups (P < 0.05). The body fat rate of AE group decreased by 2.3%, which was significantly higher than other two groups (P < 0.05). 2. RE can significantly increase muscle strength. The GS in the RE group increased by 13.1%, higher than that AE group (increased by 8.4%) and control group (increased by 3.6%) (P < 0.05). RE and AE can significantly improve physical activity function. Compared with the control group, the STS in the AE group and RE group were significantly improved (-18.1% and -15.6%), and the TUG were significantly reduced (1.7% and 11.0%) (P < 0.05). CONCLUSIONS: Exercise intervention has a positive prevention and treatment effect on sarcopenia in elderly women. Resistance exercise can improve muscle mass, muscle strength and physical activity function, aerobic exercise can improve the physical activity function of elderly women. Research supported by National Health Commission "Preventive intervention for disability caused by sarcopenia in the elderly" (No. 2019120876)