Intervention Research Of Middle-intensity Swimming On Sarcopenia Of Middle-aged And Elderly People

Experimental intervention research methods were used to clarify the age limit of the occurrence of muscle decay through the screening and diagnosis criteria of muscle decay,and to explore the intervention effect of moderate-intensity swimming exercise on the body composition,muscle strength and physical activity ability of middle-aged and elderly patients with muscle decay,and whether the effect of the same exercise intervention on the middle-aged and elderly people with muscle decay and the middle-aged and elderly people with normal muscle was the same.36 middle-aged and elderly people over the age of 45 were selected as experimental objects.The 30 middle-aged and elderly people who met the criteria for inclusionand exclusion were screened according to the asian population standard method for determining muscle decay disease by the Asian Muscle Attenuation Syndrome Working Group,divided into normal muscle group and muscle decay group,compared the indicators of the first two groups of subjects in the experiment,and analyzed the differencesbetween the indicators of the elderly in the two groups.After the group,an 8-week moderate-intensity swimming exercise training session was performed.After 8 weeks,the effects of moderate-intensity swimming exercise on the body composition,grip strength,pace and other indicators of middle-aged and elderly people in different groups were compared,and the intervention effect of moderate-intensity swimming exercise ondelaying muscle decay was verified.The results showed that before the intervention,the muscle strength and physical activity of the elderly in the muscle decay group were significantly lower than those inthe normal muscle group.After 8 weeks of moderate-intensity swimming exercise intervention,the test indicators of middle-aged and elderly people in different groups have improved to a certain extent,which is manifested in the BMI,body fat rate,skeletal muscle mass,grip strength,and pace indicators of men in the normal muscle group（P<0.01）;and BMI,body fat rate,skeletal muscle quality,grip strength,and pace in women（P<0.01）.In addition to BMI,the body fat rate,skeletal muscle mass,grip strength and pace of men in the muscle decay group were significantly improved（P<0.05）;in women,BMI,body fat rate,skeletal muscle mass,grip strength and pace were significantly improved（P<0.01）.After the intervention,the test indicators of the elderly in the two groups were improved to a certain extent,but the improvement was different.The effects of BMI,body fat percentage,skeletal muscle mass,grip strength,and pace in men in the muscle attenuation group were lower than those in the normal muscle group,and the results were statistically significant（P<0.05）.The intervention effects of BMI,body fat rate,skeletal muscle mass,grip strength,and pace in women with muscle decay were lower than those in the normal muscle group,and the resultswere statistically significant（P<0.05）.The comparative analysis of the experimental data shows that the subjects in the study are more likely to suffer from muscle decay after the age of 60 or 65;the skeletal muscle mass,grip strength and pace of the elderly in the muscle attenuation are lower or worse than those in the middle and older people with normal muscle;the moderate intensity swimming exercise has a good intervention effect on the muscle strength and physical activity ability of the patients with muscle decay disease and the normal muscle;the intervention effect of the moderate intensity swimming exercise on the elderly in the muscle normal group in the experiment is significantly higher than that in the middle-aged and elderly people in the muscle attenuation group.Through the intervention experiment,it is suggested that middle-aged and elderly people should improve their fitness awareness,enhance physical activity,reasonably choose sports participation methods,and adhere to and select appropriate exercise intensity.To improve the awareness of participating in sports,sports should be timely,and early cultivation of good exercise habits is better to delay muscle decay.