Wilson Lara, Jones Ben, Backhouse Susan H, Boyd Andy, Hamby Catherine, Menzies Fraser, Owen Cameron, Ramirez-Lopez Carlos, Roe Stephanie, Samuels Ben, Speakman John R, Costello Nessan
Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom.
Scottish Rugby Union, Murrayfield Stadium, Edinburgh, Scotland.
Appl Physiol Nutr Metab. 2024 Oct 1;49(10):1340-1352. doi: 10.1139/apnm-2023-0596. Epub 2024 Jul 8.
The purpose of this study was to quantify the total energy expenditure (TEE) of international female rugby union players. Fifteen players were assessed over 14 days throughout an international multi-game tournament, which represented two consecutive one-match microcycles. Resting metabolic rate (RMR) and TEE were assessed by indirect calorimetry and doubly labelled water, respectively. Physical activity level (PAL) was estimated (TEE:RMR). Mean RMR, TEE, and PAL were 6.60 ± 0.93 MJ·day (1578 ± 223 kcal·day), 13.51 ± 2.28 MJ·day (3229 ± 545 kcal·day), and 2.0 ± 0.3 AU, respectively. There was no difference in TEE (13.74 ± 2.31 (3284 ± 554 kcal·day) vs. 13.92 ± 2.10 MJ·day (3327 ± 502 kcal·day); = 0.754), or PAL (2.06 ± 0.26 AU vs. 2.09 ± 0.23 AU; = 0.735) across microcycles, despite substantial decreases in training load (total distance: -8088 m, collisions: -20 n, training duration: -252 min). After correcting for body composition, there was no difference in TEE (13.80 ± 1.74 (3298 ± 416 adj. kcal·day vs. 13.16 ± 1.97 (3145 ± 471 adj. kcal·day) adj. MJ·day, = 0.190), RMR (6.49 ± 0.81 (1551 ± 194 adj. kcal·day) vs. 6.73 ± 0.83 (1609 ± 198 adj. kcal·day) adj. MJ·day, = 0.633) or PAL (2.15 ± 0.14 vs. 1.87 ± 0.26 AU, = 0.090) between forwards and backs. For an injured participant ( = 1), TEE reduced by 1.7 MJ·day (-401 kcal·day) from pre-injury. For participants with illness ( = 3), TEE was similar to pre-illness (+0.49 MJ·day (+117 kcal·day)). The energy requirements of international female rugby players were consistent across one-match microcycles. Forwards and backs had similar adjusted energy requirements. These findings are critical to inform the dietary guidance provided to female rugby players.
本研究的目的是量化国际女子橄榄球联盟球员的总能量消耗（TEE）。在一项国际多场比赛的赛事中，对15名球员进行了为期14天的评估，该赛事代表了两个连续的单场比赛微周期。静息代谢率（RMR）和TEE分别通过间接测热法和双标水法进行评估。估算身体活动水平（PAL）（TEE:RMR）。平均RMR、TEE和PAL分别为6.60±0.93兆焦·天（1578±223千卡·天）、13.51±2.28兆焦·天（3229±545千卡·天）和2.0±0.3任意单位。尽管训练负荷大幅下降（总距离：-80,88米，碰撞次数：-20次，训练时长：-252分钟），但各微周期之间的TEE（13.74±2.31（3284±554千卡·天）与13.92±2.10兆焦·天（3327±502千卡·天）；P = 0.754）或PAL（2.06±0.26任意单位与2.09±0.23任意单位；P = 0.735）并无差异。在对身体成分进行校正后，前锋和后卫之间的TEE（13.80±1.74（3298±416校正千卡·天）与13.16±1.97（3145±471校正千卡·天）校正兆焦·天，P = 0.190）、RMR（6.49±0.81（1551±194校正千卡·天）与6.73±0.83（1609±198校正千卡·天）校正兆焦·天，P = 0.633）或PAL（2.15±0.14与1.87±0.26任意单位，P = 0.090）并无差异。对于一名受伤参与者（n = 1），TEE较受伤前减少了1.7兆焦·天（-401千卡·天）。对于患病参与者（n = 3），TEE与患病前相似（+0.49兆焦·天（+117千卡·天））。国际女子橄榄球运动员的能量需求在单场比赛微周期内保持一致。前锋和后卫的校正能量需求相似。这些发现对于为女子橄榄球运动员提供饮食指导至关重要。
