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最終更新日：2025/11/05
福嶋 一剛
フクシマ カズタカ
(Kazutaka Fukushima)
論文
- タイトル
- タイトル（英）
- COVID-19 infection and return-to-play outcomes of elite athletes in Japan: a retrospective descriptive study.
- 参照URL
- https://researchmap.jp/kazutaka-fukushima/published_papers/51592104
- 著者
- 著者（英）
- Kazutaka Fukushima,Kazuyuki Kamahara,Anna Tomori,Yoshio Nakata
- 担当区分
- 筆頭著者,責任著者
- 概要
- 概要（英）
- OBJECTIVES: To describe the characteristics of COVID-19 among elite Japanese athletes and their return-to-play (RTP) time. METHODS: We retrospectively reviewed clinical records at the Japan Institute of Sports Sciences between June 2022 and May 2023. Elite athletes who underwent periodic health examinations were examined by a physician to confirm COVID-19 history, symptoms and the RTP time. RESULTS: Of 994 athletes, 456 had a COVID-19 history (mean±SD, 23.3±4.6 years; 56% male). Most infections occurred during the sixth wave (Omicron variant), followed by the seventh and eighth waves, with 88% recorded after the fifth wave. Indoor athletes were more frequently affected than outdoor athletes (306 vs 150, p<0.05). Badminton athletes were the most commonly affected athletes (16%), followed by volleyball (10%) and handball (7%). Among those with a history of COVID-19, 89% reported symptoms, while 11% were asymptomatic. Fever was the most common symptom (80%), followed by sore throat (58%) and cough (44%). The median (IQR) RTP time was 10 (7-14) days. Overall, 472 athletes resumed play within 28 days, while 20 returned after 28 days. RTP delays were more frequent before Omicron (9/59 athletes) than after (11/433 athletes, p<0.05). CONCLUSION: COVID-19 was more common among indoor sports athletes, primarily during the Omicron wave, with most cases being symptomatic but resolving quickly. These findings likely reflect factors such as close-contact training, immune changes during intensive training and international travel and may help characterise COVID-19 outcomes in elite athletes.
- 出版者・発行元
- 出版者・発行元（英）
- 誌名
- 誌名（英）
- BMJ open sport & exercise medicine
- 巻
- 11
- 号
- 4
- 開始ページ
- e002731
- 終了ページ
- 出版年月
- 2025年10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/10.1136/bmjsem-2025-002731
- 共同研究・競争的資金等の研究課題