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最終更新日：2024/11/25
近藤 衣美
コンドウ エミ
(Emi Kondo)
論文
- タイトル
- タイトル（英）
- Water intake in athletes: Agreement between food records and isotope-dilution methods.
- 参照URL
- https://researchmap.jp/E_Kondo/published_papers/48532797
- 著者
- 著者（英）
- Filipe Jesus,Olivia Di Vincenzo,Rúben Francisco,Catarina L Nunes,Emi Kondo,Paulo Rocha,Cláudia S Minderico,Luís B Sardinha,Dale A Schoeller,Analiza M Silva
- 担当区分
- 概要
- 概要（英）
- BACKGROUND: Although water intake (WI) is commonly estimated through self-reporting, its inaccuracy is reported. Water turnover (rH2O)-derived WI is the reference method; however, it is costly. The study aimed to validate alternative methods for determining WI in a group of athletes. METHODS: Eighty-two athletes (20.4 ± 5.1 years; 28 females) were included in this cross-sectional validation study. Doubly labelled water (DLW) determined rH2O and rH2O-derived WI by subtracting metabolic, transcutaneous, and inspired water from rH2O (reference). The rH2O components were determined by alternative approaches: i) average values of macronutrients instead of individual food records (DLW-derived WI); ii) estimating total energy expenditure (TEE) and rCO2 through a predictive equation instead of DLW (2H-derived WI); iii) estimating rH2O by prediction equation (equation-derived WI). Food records were employed to determine WI (food record-derived WI). RESULTS: Only DLW-derived WI showed no significant differences compared to reference in both sexes (females: 2 mL/day, p = 0.183; males: -4 mL/day, p = 0.118). 2H-derived WI showed significant but small differences (females: 23 mL/day, p = 0.001; males: 32 mL/day, p < 0.001) while food record-derived WI showed the largest differences (females: -924 mL/day, p < 0.001; males: -1504 mL/day, p < 0.001). DLW-derived and 2H-derived WI showed good performance [r2 > 0.987 and concordance correlation coefficient (CCC) > 0.993], while food record-derived WI showed poor performance [r2 < 0.031 and CCC < 0.133)]. CONCLUSION: Although some alternative approaches provide adequate estimates, DLW- and 2H-derived WI are the only valid methods to determine WI in our sample of competitive athletes. These approaches are less costly and could contribute to the development of WI guidelines for athletes. Food records underestimate WI, but evidence-based recommendations could reduce misrecordings.
- 出版者・発行元
- 出版者・発行元（英）
- 誌名
- 誌名（英）
- Clinical nutrition (Edinburgh, Scotland)
- 巻
- 43
- 号
- 12
- 開始ページ
- 370
- 終了ページ
- 378
- 出版年月
- 2024年11月15日
- 査読の有無
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- DOI URL
- https://doi.org/10.1016/j.clnu.2024.11.026
- 共同研究・競争的資金等の研究課題