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논문 기본 정보

자료유형
학술저널
저자정보
조진경 (인하대학교) 한태경 (안동대학교)
저널정보
한국운동생리학회 운동과학 운동과학 제29권 제3호
발행연도
2020.1
수록면
300 - 306 (7page)

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초록· 키워드

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PURPOSE: The purpose of this study was to evaluate the effects of water-loading weight loss on physiologic response. METHODS: Thirteen consenting university wrestlers (weight 71.5±8.0 kg, BMI 25.0±2.0 kg/m²) randomly divided into the weightloss (WL) group (n=6) and water-loading weight loss (WWL) group (n=7). Wrestlers performed 2-week weight loss program targetingaverage of 5-10% of body weight reduction, under the supervision of a coach. Participants were instructed to drink 1.5-2 L and 6-7 Ldaily during the first week in the WL and WWL groups, respectively. Both groups were gradually reduced water intake and didn’t drinkwater the day before weighing. Anthropometric characteristics, hematocrit (HCT), serum electrolytes, aldosterone, and cortisol weremeasured before and after weight loss. Data were analyzed with two-way ANOVA using SPSS. The significance level was set at p<.05. RESULTS: After 2 weeks, the weight (p=.004), BMI (p<.001), lean body mass (p<.001), body water composition (p<.001), and SBP(p=.046) were reduced significantly in both groups. However, there was no statistically significant between-group difference in allparameters of body composition and SBP. The HCT and chloride (Cl-) decreased in both WL and WWL groups (p=.018 and p=.006,respectively). Serum aldosterone and cortisol significantly increased in both groups (p<.001). In particular, cortisol was significantlylower in the WWL than in WL group. CONCLUSIONS: This study suggested that a large-volume hydration before water restriction for weight loss can be a safe method.

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