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最終更新日：2024/10/18
市川 麻美子
イチカワ マミコ
(Mamiko Ichikawa)
論文
- タイトル
- タイトル（英）
- Evaluation of fat-free mass hydration in athletes and non-athletes.
- 参照URL
- https://researchmap.jp/ichiavi/published_papers/41238339
- 著者
- 著者（英）
- Hiroyuki Sagayama,Yosuke Yamada,Mamiko Ichikawa,Emi Kondo,Jun Yasukata,Yoko Tanabe,Yasuki Higaki,Hideyuki Takahashi
- 担当区分
- 概要
- 概要（英）
- PURPOSE: To evaluate the hydration of fat-free mass (FFM) in athletes and non-athletes. METHODS: We analyzed the data of 128 healthy young adults (athletes: 61 men, 36 women; non-athletes: 19 men, 12 women) using the two-component (2C), 3C and 4C models. Under-water weighing or air-displacement plethysmography and deuterium dilution methods were used for estimating body density and total body water, respectively. The bone mineral content (BMC) was determined using whole-body scans by dual-energy X-ray absorptiometry. RESULTS: There was no significant difference in FFM hydration between the athletes (men, 72.3 ± 1.3%; women, 71.8 ± 1.3%) and non-athletes (men, 72.1 ± 1.2%; women, 72.2% ± 1.0%) in the 3C model. The total mean FFM hydration (72.1% ± 1.3%) was similar to the corresponding value in the literature (~ 73%). The estimation error of the percentage fat by the 2C vs the 4C model was significantly and highly correlated with hydration (r = 0.96), BMC (r = - 0.70), and total body protein (r = - 0.86) in the 4C model FFM. CONCLUSION: Although FFM hydration was similar in athletes and non-athletes, it would be underestimated or overestimated when the 2C model is used for evaluation, and the biological FFM hydration value deviates from the 73% value inter-individually. Despite that this inter-individual variation in FFM hydration is low in terms of between-individual standard deviation (1.3%), the BMC and total body protein differ greatly in athletes, and when it affects FFM hydration, it may also affect the percentage fat measurement in the 2C model. Thus, FFM hydration would not be affected by FFM, percent body fat, or the athletic status.
- 出版者・発行元
- 出版者・発行元（英）
- 誌名
- 誌名（英）
- European journal of applied physiology
- 巻
- 120
- 号
- 5
- 開始ページ
- 1179
- 終了ページ
- 1188
- 出版年月
- 2020年5月
- 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/10.1007/s00421-020-04356-y
- 共同研究・競争的資金等の研究課題