Cohen J L, Potosnak L, Frank O, Baker H
Phys Sportsmed. 1985 May;13(5):43-54. doi: 10.1080/00913847.1985.11708788.
In brief: We studied the nutritional and hematologic status of 22 professional ballet dancers (10 men, 12 women, mean age 25), from American Ballet Theatre by analyzing daily dietary intake and laboratory data including blood vitamin assays. The dancers had law percent body fat. Daily calorie intake was 2,967 ± 667 kcal for men and 1,673 ± 450 kcal for women. Carbohydrate consumption (38% of the total daily calorie intake for men and 50% for women) was too law for efficient energy use. Hemoglobin and red cell indexes were normal, but serum ferritin was below normal in eight women and three men. Serum chemistry values were normal. Blood vitamin assays were normal in all dancers, reflecting widespread use of vitamin supplements. By sports medicine standards, the dancers' law calorie diets were suboptimal for strenuous physical exercise.
我们通过分析日常饮食摄入量和实验室数据（包括血液维生素检测），研究了美国芭蕾舞剧院22名职业芭蕾舞演员（10名男性，12名女性，平均年龄25岁）的营养和血液学状况。这些舞者的体脂率较低。男性每日卡路里摄入量为2967±667千卡，女性为1673±450千卡。碳水化合物消耗量（男性占每日总卡路里摄入量的38%，女性占50%）对于高效能量利用来说过低。血红蛋白和红细胞指标正常，但8名女性和3名男性的血清铁蛋白低于正常水平。血清化学值正常。所有舞者的血液维生素检测结果均正常，这反映出维生素补充剂的广泛使用。按照运动医学标准，这些舞者的低热量饮食对于剧烈体育锻炼来说并非最佳。
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