Understanding the daily energy expenditure of athletes during training is important to support recovery, adaptation, and the maintenance of performance. The aim of the current research was to assess the total daily energy expenditure (TDEE) and the acute energy expenditure (EE) of tennis training sessions during habitual training of elite tennis players. Using a cohort study design, 27 (n = 10, male; age; 22.3 ± 3.2 years and n = 17, female; age: 23.8 ± 3.5 years) elite singles tennis players were assessed for TDEE and tennis training EE. Using Actiheart activity monitors during a 2- to 5-day training period, male players were analyzed for 26 days and 33 (1.3 ± 0.5 sessions/day) tennis training sessions, and female players for 43 days and 58 (1.2 ± 0.4 sessions/day) tennis training sessions. Male TDEE (4,708 ± 583 kcal/day) was significantly higher than female (3,639 ± 305 kcal/day). Male absolute and relative tennis training EEs (10.2 ± 2.3 kcal/min and 7.9 ± 1.4 kcal·hr⁻¹·kg⁻¹) were significantly higher than those of females (7.6 ± 1.0 kcal/min and 6.8 ± 0.9 kcal·hr⁻¹·kg⁻¹). The resting metabolic rate was assessed via indirect calorimetry. The physical activity level for both groups was 2.3 AU. The TDEE of male and female players during habitual training now highlights the continual cycle of high energy demands experienced by the elite tennis player. The broad ranges of TDEE and EE reported here suggest individual assessment and nutritional planning be prioritized, with a particular focus on carbohydrate requirements.

了解运动员在训练期间的每日能量消耗对于支持恢复、适应和保持表现非常重要。本研究的目的是评估精英网球运动员在习惯性训练期间的每日总能量消耗（TDEE）和网球训练的急性能量消耗（EE）。采用队列研究设计，对 27 名（n  = 10，男性；年龄：22.3 ± 3.2 岁，n  = 17，女性；年龄：23​​.8 ± 3.5 岁）精英单打网球运动员进行了 TDEE 和网球训练 EE 评估。在 2 至 5 天的训练期间，使用 Actiheart 活动监测器对男性运动员进行了 26 天和 33 次（1.3 ± 0.5 次/天）网球训练的分析，对女性运动员进行了 43 天和 58 次（1.2 ± 0.4 次/天）网球训练的分析。天）网球训练课程。男性TDEE（4,708±583 kcal/天）显着高于女性（3,639±305 kcal/天）。男性网球训练绝对和相对能量消耗（10.2±2.3 kcal/min 和 7.9±1.4 kcal·hr ⁻¹ ·kg ⁻¹）显着高于女性（7.6 ± 1.0 kcal/min 和 6.8 ± 0.9 kcal·hr −1 ^{） 1} ·kg ^-1 )。通过间接量热法评估静息代谢率。两组的体力活动水平均为 2.3 AU。现在，男女运动员在习惯性训练期间的 TDEE 凸显了精英网球运动员所经历的持续循环的高能量需求。这里报告的 TDEE 和 EE 范围广泛，建议优先考虑个人评估和营养计划，特别关注碳水化合物的需求。