Study On The Aging Change Of Physical Fitness Of The Elderly Aged 70 And Over In Hefei City

Objective:to investigate the aging characteristics of the elderly over 70 years old in hefei through physical fitness test and quality of life survey,and to explore the relationship between physical fitness and quality of life,so as to provide theoretical basis for guiding the elderly to participate in physical exercise scientificallyResearch methods:using cluster sampling method to select 240 people over age 70,hefei,known as the test object,choose the health fitness inventory,USES the literature material method,field test method,mathematical statistics,the test height,weight,waist circumference,hip circumference,BMI,waist hip ratio,waist height ratio,quiet pulse,the systolic pressure,diastolic blood pressure,pulse pressure difference,vital capacity,marking time 2 minutes and 30 seconds upper arm dumbbell bending for/upper arm dumbbell 5 times for 30 seconds,stand sit stand up/sit up 5 times,grip strength,hook,seat before body bends after hands.Physical fitness test data were recorded to analyze the aging changes of the elderly over 70 years old in hefei.The results were as follows:(1)body composition:no regular changes were found in the elderly body composition of male and female with the increase of age;There was no significant difference in height between the groups of 70-74 years old,75-79 years old and 80-84 years old(p<0.05).Body weight decreased with age,and BMI,waist circumference,hip circumference,waist-hip ratio and waist height ratio did not change regularly in the aging process.There were no regular changes in women's height,BMI,waist-hip ratio and waist-height ratio,and their body weight showed a decreasing trend with age,with significant differences between each group and groups aged 70-74(p<0.05).(2)cardiopulmonary function:the overall systolic blood pressure of elderly men is high,while the quiet pulse and vital capacity of the male decrease with age,while the systolic blood pressure,pulse pressure difference and quiet pulse of the female have significant differences.(3)flexibility:the test results of the hands back hook and seat forward bending of the elderly male showed that each group over 75 years old showed significant difference from the group between 70 and 74 years old(p<0.05).There were statistically significant differences between the groups over 80 years old and under 80 years old in the elderly women,and there were significant differences between the groups of chair forward flexion(p<0.05).(4)muscle and muscular endurance:in the upper arm dumbbell bending and sitting and standing test results of elderly men,all groups over 80 years old and all groups under 80 years old showed significant differences(p<0.05).Compared with the 70-74 years old group,male groups over 80 years old showed significant differences in grip strength(p<0.05),while female elderly groups showed significant differences in upper arm dumbbell bending,sitting and standing test,and grip strength(p<0.05).(5)balance force:the elderly male decreased significantly over the age of 85,and the elderly female decreased significantly after the age of 80-84,with significant differences in all groups(p<0.05).Men are better than women at overall balance.Conclusion:the study showed that the test status of each single index of the elderly aged 70 and above in hefei urban area was in a declining trend with the increase of age.The height and weight of both male and female elderly people decreased with the increase of age.The overall BMI of the male was overweight.Body composition and overall.