This study examined energy expenditure, dietary behavior, and energy balance of female tennis and soccer student-athletes during a competitive season. A sample of 18 (Mage = 19.86±1.35) Division I female collegiate student-athletes (5 tennis and 13 soccer players) were followed for four days. Physical activity was assessed with accelerometers and dietary behavior with daily food logs. Daily energy expenditure for the game/match, practice, and rest days was 2,848±304kcals, 2,622±248kcals, and 1,833±959kcals, respectively, with a statistically significant main effect (F(2,16) = 82.291, p < .001, η2= .91). Daily dietary intake ranged from 1,833±959 to 1849±371kcals, with no significant interaction between different days. There were no sport specific differences in energy expenditure or dietary behaviors. Athletes consumed 4.30±2.07 g/kg carbohydrates, 1.57±.98 g/kg protein, and 1.27±.80 g/kg fats daily. There was a significant main effect in dietary intake (F(2,16) = 7.311, p = .006, η2= .48), with a difference between game/match and recovery days (t(17) = 3.83, p = .001, d = 1.19). This study showed a negative energy balance among female student-athletes. The findings indicate that the lack of carbohydrate intake during game/match days contributed to this negative energy deficit.

中文翻译：

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女大学生网球和足球运动员在竞技季节的能量消耗和饮食摄入

这项研究检查了一个竞技季节女网球和足球女运动员的能量消耗，饮食行为和能量平衡。随访了18名（法师= 19.86±1.35）I级女大学生运动员（5名网球运动员和13名足球运动员）的样本，进行了为期4天的随访。用加速度计评估体育活动，并通过每日食物记录评估饮食行为。比赛/比赛，练习和休息日的每日能量消耗分别为2,848±304kcal，2,622±248kcal和1,833±959kcal，具有统计学显着的主要效果（F（2,16）= 82.291，p <.001 ，η2= 0.91）。每日饮食摄入量为1,833±959至1849±371kcal，不同天之间无显着相互作用。能量消耗或饮食行为没有运动方面的具体差异。运动员消耗4.30±2。每天摄取07 g / kg的碳水化合物，1.57±.98 g / kg的蛋白质和1.27±.80 g / kg的脂肪。饮食摄入量有显着的主要影响（F（2,16）= 7.311，p = .006，η2= .48），比赛/比赛和恢复日之间有差异（t（17）= 3.83，p = .001，d = 1.19）。这项研究表明女运动员之间的能量负平衡。研究结果表明，比赛/比赛期间缺乏碳水化合物的摄入会导致这种负能量不足。