| Through inverstigation,this paper is to comprehend the present conditions of the meals structure,the conversation of energy state and weight and body composition of the youth's judoka and wrestlers.Meanwhile,with the practical facts taken into consideration and with the reference to the ideal weight and BF% of the athletes,it's to make an investigable recipe to ameliorate the athletes'body composition.Trough investigating the general laws of controlling weigh and improvides the body composition by meals investigation,this paper provides the theoretical basis for the constraction of the rational meals structure of judoka and wrestlers.Extract 64 wrestlers and judoka from The LangFang Sports School,and the first part of the thesis is to find out the amount of assimiliation of everyday energy and every micre-elements of the athletes as well as the proportion of the three main nutrients by the method of measuring weight every three days;to record the amount of energy consumption by using energy monitor;to measure weight and BF% by using BOD POD.Thesecond part of thsis is to make an investigable recipe for the dietary intervention of the athletes for one month by taking the practical facts into consideration,and to evaluate the intervention principles and effects by comparing the data changes of the meals structures before and after the dietary intervention,the conversation of energy state,and weight and BF% and so on.Result:(1) The average daily assimilation of energy for athletes is as following:Male2638.2±231.8kcal;Female2159.1±151.8kcal.It's lower than the recommendation valuce.The ratio of the three main nutrition supplied is unreasonable for both male and female athletes.And the ratio of the fat supply is comparatively high:Male27.2±7.6%,Female28.5±6.4%.For individual athlete,the ratio is severely under the recommendation value.Only the supply of Vitmin E reaches the recommendation value.The other supplies of Vitmins are all below it.In particular the Vitimin B1,Vitimin B2 and Vitimin C.Regarding to the mineral substance,the result shows that all the athlete involved in the investigation reach the recommendation value in terms of the supplies of Fe and Se.While the supplies of Ca and Zn are respectively under the recommendation value.(2) According to the statistics ,the majority of the athletes are all at the quantity of negative state,the minority of the athletes who are overweight are in the quantity of positive state.(3 )For the male athletes:the weight is 70.09±21.55 kg,BF% is 17.6±8.1.For the female athletes:the weight is 65.69±11.52 kg,BF% is 27.4±7.2. (4 )The energy of men and women experimental group is higher than control group,approaching the recommended amount of energy absorbed by athletes in china.Meanwhile,the supply energy of protein of experimental froup is much higher than control group while the fat lower than control group.(5 )Men and women experimental groups are in direct balance ,which is significant different from the negative balance before investigation(P<0.01).However,men and women control groups are always in negative balance both before and after investigation,with no statistical significance(P>0.05).(6) The weight of men and women experimental groups after investigation is a bit heavier than that before investigation,with increase by a small margin;while the weight of men and women control groups without investigation comes down a little of which the change of women group is significant different(P<0.05).BF% of men and women experimental group after investigation comes down compared with that before investigation with significant difference(P<0.05),while BF% of men and women control group without investigation increase after one month,of which the change of men group is significant different(P<0.05).Conclusion:(1) The eating structure of judoka and wrestlers is unreasonable.We should adjust recipe to thire respective practical situation.(2) As the BF% of judoka and wrestlers is generally high,it's necessary for them to decrease it.(3)One month of dietary investigation can ameliorate the weight and BF% of judoka and wrestlers.(4)Reasonable regulation of recipe can provide reference for athletics to control and lose weigh. |
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