We evaluated the effects of 7-day rapid weight loss (RWL) intervention on body composition and biomarkers of creatine metabolism in eight elite judokas during a pre-competition period. RWL induced a significant drop in weight (81.7 ± 10.7 kg at baseline vs. 76.8 ± 10.3 kg at follow-up; P < 0.001), fat mass (12.6 ± 5.6 kg vs. 9.2 ± 4.0 kg; P = 0.003) and fat-free mass (69.1 ± 7.3 kg vs. 67.6 ± 7.7 kg; P = 0.05), accompanied by an increase in serum creatinine levels at follow up (104.0 ± 10.5 µmol/L vs. 114.9 ± 10.2 µmol/L; P = 0.009). An acute restriction of food and fluid intake appears to negatively affects fat-free mass and indices of kidney function in judokas.

中文翻译：

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快速减肥对柔道运动员身体成分和肌酸代谢循环指标的影响

我们评估了赛前7天快速减肥（RWL）干预对八只精英柔道运动员身体成分和肌酸代谢生物标志物的影响。RWL导致体重显着下降（基线时为81.7±10.7 kg，而随访时为76.8±10.3 kg； P <0.001），脂肪量（12.6±5.6 kg与9.2±4.0 kg； P = 0.003）和脂肪无血量（69.1±7.3 kg vs. 67.6±7.7 kg; P = 0.05），伴随随访时血清肌酐水平升高（104.0±10.5 µmol / L vs. 114.9±10.2 µmol / L； P = 0.009 ）。严格限制食物和液体的摄入会对柔道犬的无脂脂肪和肾功能指标产生负面影响。