Dietary Survey Report of Chinese Elite Swimmers in Altitude Training
Objective:In order to study the existing problems of dietary structure and nutritional status of our elite swimmers,this paper offers some nutritional safeguard measures.Method:Three days of dietary survey are made on 19 swimmers,and biochemical indexes are tested in early and late altitude training,and the data is analyzed by nutritional software.The result shows that 30% of the swimmer's total energy intake is accounted for only 80% recommendations,especially for female swimmers of large deviation,three energy source quality ratio is as following,carbohydrate intake is about 41%,fat is about 42% and protein is about 17%.The energy intake is unreasonable proportion for three meals per day,vegetable intake is overall deficiency.Hemogram index analysis shows that hemoglobin enhances accounted for 63%,hematocrit increased for 63%.The weight change is 0.4~0.8 kg in average before and after training,the blood index of swimmers with weight control tends to decline,swimmer's mean water consumption is 3.5L.It concludes that swimmer's dietary monitoring and nutritional supplement during the altitude training is the important guarantee of improving athletic ability.