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最終更新日：2025/10/14
星 大輔
ホシ ダイスケ
(Daisuke Hoshi)
論文
- タイトル
- タイトル（英）
- Variabilities of salivary human herpesvirus 6, 7, and secretory immunoglobulin A levels from pre- to post-competition periods in baseball players.
- 参照URL
- https://researchmap.jp/jpsport_hoshi/published_papers/51464827
- 著者
- 著者（英）
- Shinsuke Tamai,Kazuhiro Shimizu,Ryota Sone,Daisuke Hoshi,Akari Kitahara,Takehito Sugasawa,Kazuhiro Takekoshi,Koichi Watanabe
- 担当区分
- 概要
- 概要（英）
- BACKGROUND: Persistent physical fatigue (PPhF) accompanying daily intensive training often results in underperformance. While salivary secretory immunoglobulin A (SIgA) has been traditionally used as an immunological marker, salivary human herpesvirus 6 and/or 7 (HHV-6/7) have recently been presented as "microbiological" markers of PPhF. This study aimed to examine the monthly variabilities of salivary HHV-6/7 levels and the difference with SIgA along the training periodization. METHODS: A total of 27 healthy male university baseball players (N.=17) and non-players (student staff, N.=10) were followed up for 4 months (August, pre-competition period; September and October, competition period; November, post-competition period). The main measures were subjective and objective fatigue parameters (questionnaires and performance tests), and salivary HHV-6/7 and SIgA levels. RESULTS: The fatigue parameters indicated a decrease in athletic performance from August to September due to PPhF during high intensity training in August. Two-way repeated analysis of variance showed that salivary HHV-6 and -7 levels were higher in players compared to non-players (P<0.05). Salivary HHV-6 levels gradually decreased (P<0.05), whereas HHV-7 levels remained unchanged (P>0.05). Salivary SIgA levels were higher in players rather than in non-players (P>0.05), and the levels did not change (P>0.05). CONCLUSIONS: Our findings suggest that salivary HHV-6/7 levels, specifically in HHV-6, reflect the degree of PPhF independently of SIgA levels. As saliva can be collected anywhere, periodic monitoring of salivary HHV-6/7 levels may be easily applicable for assessing PPhF beside sports field and allow appropriate conditioning.
- 出版者・発行元
- 出版者・発行元（英）
- 誌名
- 誌名（英）
- The Journal of sports medicine and physical fitness
- 巻
- 65
- 号
- 3
- 開始ページ
- 438
- 終了ページ
- 447
- 出版年月
- 2025年3月
- 査読の有無
- 査読有り
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- DOI URL
- https://doi.org/10.23736/S0022-4707.24.16227-5
- 共同研究・競争的資金等の研究課題