The influence of aerobic exercise on college students' related indexes Abstract Objective: By measuring the influence of aerobic exercise such as volleyball, basketball and football on college students' body length, weight and grip strength, to clarify the influence of aerobic exercise on college students' related indexes. Methods: 938 freshmen of * * 1 participated in the study. The subjects were divided into two groups, namely, the exercise group and the control group, with 469 people in each group, and the exercise group had 65438+ per week. 1 ball aerobic exercise was carried out at 3 and 5 respectively. At the end of sophomore year, the body length, weight, vital capacity, grip strength, step test and 50 m score of the subjects were measured respectively, and the differences between the two groups were compared. Results: (1) Compared with the end of the second year of college, there was no statistical change in the indexes of the control group (P & gt0.05). (2) At the end of the second year of college, compared with the time of admission, the exercise group lost weight, and the performance of step test, vital capacity and grip strength improved; (3) Compared with the control group, at the end of the second year of college, the exercise group lost weight, and improved the performance of step test, vital capacity and grip strength (P The age was (17.6 2.3) years, and all the subjects had no cardiovascular and cerebrovascular diseases, understanding disorder and abnormal activities. The subjects were randomly divided into exercise group and control group according to their student numbers, with 469 cases in each group, including 3 13 boys, 0/56 girls and 322 boys in the control group. 0.05). 1.2 Methods The exercise group received aerobic exercise, starting from 1 week, three times a week, once a week 1 time. The training method is 1: football training, 30 minutes/time, Wednesday at 3: 00. 35 minutes/time. The control group did not do the above aerobic exercise. The exercise group began to exercise from the time students entered school, except for winter and summer vacations, which lasted for 2 years. The subjects' body length, weight, vital capacity, grip strength, step test and 50-meter score were measured at the end of the second year of college. Observation and measurement: (1) Body length and weight: The subjects were measured with a height and weight meter. (2) vital capacity: the vital capacity of the subjects at the time of enrollment and at the end of the study was measured with a pulmonary function instrument; (3) Step experiment: The improved Harvard step experiment method is adopted; (4) Grip strength: the subjects measured their grip strength with a grip strength meter when they entered school and at the end of their study; (5) 50-meter performance: Measure the 50-meter sprint performance of the subjects when they entered the group and at the end of the study with a stopwatch. Statistical processing: all the above measurement indexes were completed by the same person before and after. The measurement process adopts blind method. The original data were stored in MicrosoftExcel, and a database was established. SPSS 10.0 software package was used for statistical analysis, and one-way ANOVA was used for test. 2 Compared with the grade at the end of sophomore year, 0.05); However, at the end of the second year of college, the exercise group lost weight, while the performance of step test, vital capacity and grip strength were significantly improved; At the same time, at the end of the second year of college, compared with the control group, the weight of the exercise group was obviously reduced, while the performance of step test, vital capacity and grip strength were improved (P < 0.05, table 1). Table 1 Influence of college students' indexes at entrance and end of study 3 Discussion Since Cooper and others put forward the system and concept of aerobic exercise, the development of aerobic exercise has been nearly half a century. Aerobic metabolism is the main metabolism in the body during aerobic exercise, which can improve the oxygen intake of the body and improve the cardiopulmonary function. Aerobic exercise includes walking (walking, brisk walking), jogging, playing ball, swimming, mountain climbing, cycling, aerobics, Tai Ji Chuan and so on. It is characterized by low intensity, rhythm, uninterrupted and long duration. Compared with explosive anaerobic exercise such as weightlifting, running, high jump, long jump and throwing, aerobic exercise is a continuous exercise. Long-term adherence to aerobic exercise can increase the amount of hemoglobin in the body, improve the body's resistance, resist aging, improve the efficiency of cerebral cortex and cardiopulmonary function, increase fat consumption, and prevent arteriosclerosis. Reduce the incidence of cardiovascular and cerebrovascular diseases [1-3]. Therefore, aerobic exercise plays a very important role in preventing various senile diseases. Studies have found that aerobic exercise can significantly reduce the incidence of cerebrovascular diseases and heart diseases [4]. In addition, Motoyama et al. [5] also reported that low-intensity aerobic exercise training has a significant effect on elderly hypertensive patients, and the resting blood pressure of the subjects decreased significantly after three months of exercise. And the blood pressure remained stable after 9 months of exercise. Whelton et al. [6] conducted a meta-analysis of the results of 54 similar experiments and drew the following conclusions: Aerobic exercise can lower blood pressure for both hypertensive patients and normal people; Aerobic exercise is an important content in the process of preventing and treating hypertension by improving living habits. As for its mechanism, previous studies have found that long-term regular aerobic exercise can affect the blood catecholamine level under quiet and exercise stress through sympathetic adrenal system and hypothalamic pituitary adrenal axis, so that the body can better adapt to environmental changes. To maintain its energy-saving state and the maximum reserve of myocardial function [7-9]. In addition, some studies have found that long-term participation in aerobic exercise can change the balance of cardiovascular autonomic nerves. At present, the consensus view is that exercise training can improve the excitability of cardiac vagus nerve [10-1]. At present, the research on aerobic exercise mainly focuses on the elderly. However, there is little research on the influence of aerobic exercise on teenagers' physique, so this study discusses it. At the same time, because football, volleyball and basketball are more popular and easily accepted by students, this study adopts the above methods to carry out functional aerobic exercise. In this study, we found that after two years of aerobic exercise, the exercise group lost weight. Compared with the control group, the results of vital capacity, step test and grip strength are all improved, which shows that aerobic training can enhance the lung ventilation function and muscle development of the subjects and reduce weight by increasing fat consumption. However, in this study, we also found that aerobic training has little effect on height and 50 m performance, which may be due to many factors affecting height, such as genetic and endocrine factors, so the effect of aerobic training may be weakened or offset. In addition, the 50 m performance is greatly influenced by muscle explosive force, and aerobic training has little influence on it, so there is no statistical change in the 50 m performance. Freshmen are in the late stage of human growth and development, and their physique is restricted by many factors [12], so long-term appropriate aerobic training can promote the growth and development of freshmen and enhance their physique. It is best to devote yourself to work and study. Although our research shows that aerobic exercise can promote college students' physique, the specific mechanism is still unclear and needs further study. References [1], Hao,. Responses of different immune functions to aerobic exercise [J]. Journal of Tianjin Institute of Physical Education, 2006,21(3): 246-248. [2] Sandra L, David C, Anne J, et al. Effects of moderate exercise training on immune response [J].Med set of physical exercise, 199 1, 23( 1):64-69. Gleeson M, McDonald WA, Cripps AW, et al. 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