Pettersson Stefan, Berg Christina M
Dept. of Food and Nutrition, and Sport Science, University of Gothenburg, Göteborg, Sweden.
Int J Sport Nutr Exerc Metab. 2014 Feb;24(1):98-109. doi: 10.1123/ijsnem.2013-0041. Epub 2013 Aug 26.
The purpose of the current study was to investigate elite female (n = 21) and male (n = 47) combat sports athletes' (n = 68; mean age (± SD) 21.3 ± 3.8 years; mean height 177 ± 10.2 cm) dietary intake between weigh-in and the first bout in Olympic combat sports. The data were collected at 6 separate tournaments and measurements included estimated food records, time for recovery, and body weight (BW) at weigh-in and first match. In total, 33 athletes participated in wrestling and taekwondo, sports with extended recovery times, and 35 athletes in judo and boxing, sports with limited recovery time. The results displayed that despite a mean consumption of food and drinks corresponding to 4.2 kg, the athletes only regained an average of 1.9 kg BW during recovery. Water accounted for 86% of the total intake. For each liter of water consumed, athletes gained 0.57 kg BW, when excluding heavy weight athletes (n = 5). Carbohydrate consumption was 5.5 g/kg BW, compared with the recommended 8-10 g/kg BW. In total, one-quarter of the consumed water originated from carbohydrate-rich drinks. Given the average recovery time of 18 (wrestling, taekwondo) versus 8 hr (judo, boxing), the former group consumed twice the amount of water, carbohydrates, protein, and fat as the latter group. In conclusion, a large proportion of the participants did not meet the recovery nutrition guidelines for carbohydrates. In addition, the discrepancy between nutrient intake and weight gain points to the physiological barriers to retaining fluids during a limited recovery time after engaging in weight making practices.
本研究的目的是调查精英女子(n = 21)和男子(n = 47)格斗运动运动员(n = 68;平均年龄(±标准差)21.3±3.8岁;平均身高177±10.2厘米)在奥运会格斗运动中称重到首场比赛之间的饮食摄入情况。数据在6场不同的比赛中收集,测量内容包括估计的食物记录、恢复时间以及称重和首场比赛时的体重(BW)。共有33名运动员参加了恢复时间较长的摔跤和跆拳道运动,35名运动员参加了恢复时间有限的柔道和拳击运动。结果显示,尽管平均摄入的食物和饮料相当于4.2千克,但运动员在恢复期间体重仅平均增加了1.9千克。水占总摄入量的86%。排除重量级运动员(n = 5)后,每摄入1升水,运动员体重增加0.57千克。碳水化合物摄入量为5.5克/千克体重,而推荐摄入量为8 - 10克/千克体重。总共,四分之一的摄入水来自富含碳水化合物的饮料。考虑到平均恢复时间,摔跤和跆拳道为18小时,柔道和拳击为8小时,前一组摄入的水、碳水化合物、蛋白质和脂肪量是后一组的两倍。总之,很大一部分参与者未达到碳水化合物的恢复营养指南。此外,营养摄入与体重增加之间的差异表明,在进行降体重训练后的有限恢复时间内,保留水分存在生理障碍。