Survey Of National Men’s Weightlifting Athletes Dietary Nutrition Intervention Method And Effect

Objective:Reasonable nutrition affects athletes’ competitive level positively. Recently, most of the researchers involving relevant content focus on the dietary nutritional status of the athletes, only few of them study about meals intervention and evaluate the effect of meals intervention. So, taking the unreasonable dietary of the national men’s weightlifting athletes into consideration, we implement four months of meals intervention trial. After that, the effect of the meals intervention will be observed.Method:Nutritional KAP surveys of thirty male national weightlifting athletes were conducting. We extract only one person of the eight levels(56KG、62KG、69KG、 77KG、85KG、94KG、105KG、105KG+) as the research objects according to the surveys. The athlete’s daily intake of various nutrients was measured by three days weighing method. According to the problems found by testing blood biochemical index and body composition, we implemented the meals intervention trial. After the intervention of four weeks, we tested blood biochemical index and body composition again.Result:KAP survey found most of the players lacking basic nutrition knowledge, existing unhealthy eating behaviors. The results of dietary investigation:the distribution ratio of the three weeks a day is more reasonable; the intake of protein and carbohydrate increased and fat decreased significantly; VA and VB took increased; the intake of cereals vegetables, milk and aquatic products increased significantly, edible oils and meat reduced. Changes in blood parameters:Gross cholesterol and LDL had decreased and TG had also declined, HDL increased on the other hand. At the same time, percentage of body fat also decreased.Conclusion:1. We found most of the athletes know the reasonable nutrition is significant to sport performance and competitiveness. There were many incorrect dietary behaviors among them,because they lacked basic nutrition knowledge.2. After the intervention of four weeks, athlete’s daily intake of various nutrients and distribution ratio of three meals were more reasonable than before.3. After the intervention of four weeks, indicators testing lipid metabolism were improved, so that athletes’blood lipid metabolic would be balanced. In the same time, body fat was decreased by 9.07%.