The Impact of Coronavirus Infection on Health-Related Quality of Life in Amateur CrossFit Athletes

Background: The aim of this study was to assess how the disease, developing over the course of coronavirus infection, affects the quality of life of athletes practicing amateur sports who are not burdened with comorbidities. Methods: The study included 102 amateur CrossFit athletes (54 (53%) women and 48 (47%) men) who had been infected with SARS-CoV-2, but were not hospitalized. The training experience of the respondents ranged from 1.5 to 15 years (average: 6.7 ± 3.8 years). The quality of life was assessed with EQ-5D-5L and Clinical COPD Questionnaire (CCQ), which was used to assess the quality of life specific to the respiratory system, and the severity of dyspnea was assessed using the MRC questionnaire. Results: The training experience did not differ statistically significantly between men and women (p = 0.595). The quality of life in men according EQ-5D-5L was statistically significantly higher than in the case of women (0.979 ± 0.028 vs. 0.942 ± 0.073 (p < 0.001), respectively), and in EQ-VAS it was significantly higher in men than in women (85.64 ± 10.4 vs. 72.5 ± 19.36 points (p < 0.001)). The assessment of dyspnea by means of mMRC showed its higher intensity in women than in men. The differences were not statistically significant (p = 0.195). In men, a significantly lower result of the quality of life was noted in the CCQ questionnaire: 0.71 ± 0.57 vs. 1.14 ± 0.84 points (p = 0.009). Conclusions: The HRQOL, which surveyed amateur CrossFit after COVID-19, was higher in men than in women. People practicing strength- and strength-endurance-based sports rated their quality of life as the highest. Most of the subjects observed a slight intensification of dyspnea. The findings can be used for future healthcare measures to be applied in the population of CrossFit athletes.