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为了解体育院校学员的营养状况,用称重法对山东省体育运动技术学院的部分学员进行了膳食调查,并进行了体格及生化检查。结果表明:马拉松学员热能摄入量基本能满足机体需要,体操队学员热能摄入量较低。被调查的学员摄入蛋白质占总热能的15%~19%,E/T(必需氨基酸/总氨基酸)为35.4±2.9%.说明蛋白质质量较高,脂肪占总热能的32%~57%,P/S(多不饱和脂肪酸/饱和脂肪酸)为0.53±0.12,说明脂肪摄入过多,且饱和脂肪酸所占比例较高;碳水化合物摄入量较少,仅占总热能的26%~50%。马拉松学员钙的钙摄入量不足,体操队学员钙、铁摄入均不足。大部分学员维生素摄入不足,但由于学员经常服用维生素制剂,故无维生素缺乏症出现。被调查学员氮平衡略呈正值。
In order to understand the nutritional status of PE institute students, some students of Shandong Institute of Sports Technology were surveyed by weighing method and physical and biochemical tests were conducted. The results showed that the marathon students’ caloric intake can basically meet the needs of the body, while the caloric intake of gymnastics students is low. The surveyed students consumed 15% -19% of the total calories, and E / T (essential amino acids / total amino acids) was 35.4 ± 2.9%. Indicating that the protein quality is high, the fat accounted for 32% to 57% of the total heat, P / S (polyunsaturated fatty acids / saturated fatty acids) was 0.53 ± 0.12, indicating excessive fat intake, and saturated fatty acids accounted A higher proportion; less carbohydrate intake, only 26% of total heat to 50%. Marathon students lack of calcium intake, gymnastics students calcium, iron intake are not enough. Most students lack of vitamin intake, but because students often take vitamin preparations, so no vitamin deficiency appears. Nitrogen balance of surveyed students was slightly positive.