Institute of Orthopaedics and Musculoskeletal Science, University College London, Royal National Orthopaedic Hospital, Stanmore, UK.
School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester, UK.
Physiol Rep. 2022 Jun;10(11):e15337. doi: 10.14814/phy2.15337.
This study aimed at: (1) Reporting COVID-19 symptoms and duration in professional football players; (2) comparing players' pulmonary function before and after COVID-19; (3) comparing players' metabolic power (P ) before and after COVID-19. Thirteen male players (Age: 23.9 ± 4.0 years, V̇O : 49.7 ± 4.0 mL/kg/min) underwent a medical screening and performed a running incremental step test and a spirometry test after COVID-19. Spirometric data were compared with the ones collected at the beginning of the same season. Players' mean P of the 10 matches played before COVID-19 was compared with mean P of the 10 matches played after COVID-19. Players completed a questionnaire on COVID-19 symptoms and duration 6 months following the disease. COVID-19 positivity lasted on average 15 ± 5 days. "General fatigue" and "muscle fatigue" symptoms were reported by all players during COVID-19 and persisted for 77% (general fatigue) and 54% (muscle fatigue) of the players for 37 ± 28 and 38 ± 29 days after the disease, respectively. No significant changes in spirometric measurements were found after COVID-19, even though some impairments at the individual level were observed. Conversely, a linear mixed-effects model analysis showed a significant reduction of P (-4.1 ± 3.5%) following COVID-19 (t = -2.686, p < 0.05). "General fatigue" and "muscle fatigue" symptoms may persist for several weeks following COVID-19 in professional football players and should be considered for a safer return to sport. Players' capacity to compete at high intensities might be compromised after COVID-19.
(1)报告职业足球运动员感染 COVID-19 后的症状和持续时间；(2)比较 COVID-19 前后运动员的肺功能；(3)比较 COVID-19 前后运动员的代谢功率 (P)。13 名男性运动员（年龄：23.9±4.0 岁，V̇O ：49.7±4.0mL/kg/min）在感染 COVID-19 后接受了医学筛查，并进行了跑步递增步测试和肺功能测试。将肺功能数据与同一赛季初收集的数据进行了比较。将感染 COVID-19 前 10 场比赛的平均 P 与感染 COVID-19 后 10 场比赛的平均 P 进行了比较。运动员在疾病发生后 6 个月完成了关于 COVID-19 症状和持续时间的问卷。COVID-19 阳性平均持续 15±5 天。“全身疲劳”和“肌肉疲劳”是所有运动员在 COVID-19 期间报告的症状，77%（全身疲劳）和 54%（肌肉疲劳）的运动员在疾病后分别持续 37±28 天和 38±29 天。COVID-19 后肺功能测量值没有明显变化，尽管在个体水平上观察到一些损伤。相反，线性混合效应模型分析显示，COVID-19 后 P 显著降低（-4.1±3.5%）（t=-2.686，p<0.05）。“全身疲劳”和“肌肉疲劳”症状可能在 COVID-19 后持续数周，应考虑在更安全的情况下重返运动。COVID-19 后，运动员高强度比赛的能力可能会受到影响。
