| Autor: |
Katsuhiko Tsunekawa, Ryutaro Matsumoto, Kazumi Ushiki, Larasati Martha, Yoshifumi Shoho, Yoshimaro Yanagawa, Hirotaka Ishigaki, Akihiro Yoshida, Osamu Araki, Kiyomi Nakajima, Takao Kimura, Masami Murakami |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
BMC Sports Science, Medicine and Rehabilitation, Vol 13, Iss 1, Pp 1-8 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2052-1847 |
| DOI: |
10.1186/s13102-020-00229-1 |
| Popis: |
Abstract Background Few nutritional markers reflect the hypermetabolic state of athletes with high levels of skeletal muscle. Although branched-chain amino acids (BCAA) play crucial roles in protein metabolism in skeletal muscle, the relationship between skeletal muscle mass and amino acid imbalances caused by the metabolism of BCAA and aromatic amino acids remains unclear. The aim of this study is to test the hypothesis that athletes with high levels of skeletal muscle mass have plasma amino acid imbalances, assessed by serum BCAA to tyrosine ratio (BTR) which can be measured conveniently. Methods The study enrolled 111 young Japanese men: 70 wrestling athletes and 41 controls. None of them were under any medications, extreme dietary restrictions or intense exercise regimens. Each participant’s body composition, serum concentrations of albumin and rapid turnover proteins including transthyretin and transferrin, BTR, and thyroid function were assessed. Results Compared to the controls, the athletes had significantly higher skeletal muscle index (SMI) (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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