Collegiate dancers face unique challenges to maintain a lean aesthetic, optimal diet, and a high-performance level due to the various stressors in college. The purpose of this study was to examine changes in body composition (BC) and diet over two years. Participants (N = 17, 19.6 1.6 years) completed two laboratory sessions per semester. Sessions included height and weight, BC, dietary intake, and a health history questionnaire. Regardless of rigorous dance training and variations in the academic calendar, no significant changes in BC or diet were observed within semesters of over two years. BMI was normal (24.9 4.1 kg/m2) with fat mass exceeding 30% at all timepoints. Fat mass was negatively correlated with carbohydrate, fat, and protein intake (g/kg/day; r = 0.291, p = 0.004; r = 0.372, p 0.0001; r = 0.398, p 0.0001; respectively). Energy intake was within the recommended daily allowance (2040 710 kcal/day), however may be insufficient for an active dance population. Protein (1.1 0.5 g/kg), carbohydrate (3.7 1.6 g/kg), calcium (835 405 mg/day), iron (17 15 mg/day), and potassium (1628 1736 mg/day) intake fell below recommendations for an active population. Alterations in dance training and the demands of the academic calendar may be contributing to suboptimal dietary intake and BC in female collegiate dancers.
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机译：大学舞者面临着独特的挑战，以维持贫民，最佳的饮食，以及由于大学的各种压力因素而获得的高性能水平。本研究的目的是检查两年后体组成（BC）和饮食的变化。参与者（n = 17,19.6 1.6年）每学期完成两项实验室会议。会议包括高度和体重，BC，饮食摄入和健康历史问卷。无论学术日历的严格舞蹈培训和变化如何，在两年多的学期内没有观察到BC或饮食的重大变化。 BMI正常（24.9 4.1 kg / m 2），脂肪质量在所有时间点超过30％。脂肪质量与碳水化合物，脂肪和蛋白质摄入量呈负相关（g / kg /天; r = 0.291，p = 0.004; r = 0.372，p 0.0001; r = 0.398，p 0.0001;能源摄入量在推荐的每日津贴（2040 710千卡/日）内，然而，有效舞蹈人口可能不足。蛋白质（1.1 0.5g / kg），碳水化合物（3.7 1.6g / kg），钙（835 405 mg /天），铁（1715 mg /天），钾（16281736毫克/天）摄入量下降了积极的人口。舞蹈培训的改变和学术日历的需求可能会导致女性大学舞者中次优的饮食摄入和BC。
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