Study On Nutrition Evaluation And Dietary Intervention Effect Of Women’s Pole Vault Athletes

Objective:Through athletes nutrition knowledge,attitude,behavior questionnaire（KAP）,dietary survey,body composition test and other nutrition evaluation method to investigate xi’an Physical Education University women pole vault athletes nutrition intervention before and after nutrition knowledge,nutrition attitude,dietary behavior,dietary nutrition intake and body composition,and to evaluate the effect of nutrition intervention,to guide women pole vault athletes scientific dietary nutrition reference.methods: In this study,all the athletes of Xi’an Sports team as the subjects,using KAP nutrition questionnaire,food weighing and 24-hour dietary review.Body composition of pole jumpers was measured using a Inbody720 body composition tester and blood indicators were measured by routine blood tests.Dietary nutrition intervention for athletes through nutrition education.Results:（1）The average score of general nutrition knowledge was 9.13±1.63,sports nutrition knowledge was 6.13±1.38,nutritional attitude portion was 12.63±3.13,nutrition behavior was 26.38±3.13,and the athletes’ total score was 54.25±4.56.（2）The results of dietary intake before the intervention showed that the total energy intake of pole vault athletes was（1837.65±245.50）kcal,and the percentage of caloric intake of three daily meals and extra meals was 20.78%,31.04%,39.65%and 8.22%.The proportion of carbohydrate,protein and fat energy intake was 50.02%,17.27% and 32.71% of the total energy,respectively.Most vitamins and minerals intake did not reach the recommended value.（3）General nutrition knowledge scored13.75±0.375,sports nutrition knowledge 9.50±0.50,nutrition attitude 19.88±2.88,nutrition behavior 39.25±6.00,KAP questionnaire score 82.38±8.63,and the scores of the KAP nutrition questionnaire were significantly different compared with the intervention（P <0.05）.（4）The total energy intake of the athletes after the intervention was（2441.44±272.84）kcal,and the percentage of caloric intake of three daily meals and extra meals was 28.91%,35.80%,26.83% and 8.82%.The proportion of carbohydrate,protein and fat energy intake was 56.07%,15.76% and 27.91% of the total energy,respectively,all of which were within the reasonable range.Most of the vitamin and mineral intake after the intervention reached the recommended value.（5）Changes in body composition of athletes during the intervention: their body weight,body fat and body fat were significantly different compared with before the intervention（P<0.05）.Weight changes were（58.25 ± 4.60）kg,（58.39 ± 4.76）kg,（57.76±4.68）kg,（57.33±4.58）kg,Body fat changes were（11.26±1.46）kg,（10.81±1.77）kg,（10.13±1.75）kg,（9.88±1.22）kg,Percentage change of body fat（19.30±1.95）%,（18.50±2.58）%,（17.45±2.63）%,（17.19±1.89）%.Conclusion:（1）The KAP nutrition questionnaire found that pole vault athletes’ knowledge of general nutritional knowledge,poor nutritional attitude and nutritional behavior,and high recognition of reasonable nutrition diet to promote sports performance,but there are many unreasonable dietary behaviors.Total calorie intake is too low,much lower than the recommended value;unreasonable intake of three energy nutrients,insufficient intake of carbohydrates,high intake of protein and fat;unreasonable intake of three meals,low calories of breakfast and too high calories for dinner;most vitamins and minerals.（2）Twelve-week nutrition education intervention can significantly increase the nutritional knowledge of pole vault athletes and improve their nutritional attitude and behavior.At the same time,the twelve-week nutrition education intervention significantly improved the total dietary calories,the three energy nutrients and three calories of the athletes,and met the recommended range;most vitamin and mineral intake reached the recommended range.（3）Nutrition education can optimize the body composition of pole vault athletes.By regular monthly testing of body composition,combined with nutrition education intervention,it can improve their muscle mass and significantly reduce the percentage of body fat and body fat.（4）Female pole vault athletes,such as white blood cells,red blood cells,hemoglobin and hematocrit,were in the normal value range before and after the intervention,and there was no anemia.