Fig 2. Course of symptom categories over investigation period.

Number of athletes who stated at least one symptom in the eight symptom categories at t₀ (first examination date) and t₁ (3.3 ± 0.5 months post first examination). Data of symptom categories were collected with medical history and the International Consensus CFS questionnaire [24]. In total 44 athletes stated at least one symptom at t₀ and 37 athletes at t₁ (3.3 ± 0.5 months post first examination). Athletes could state symptoms in multiple categories.