Fig. 1From: Cardiovascular implications and physical activity in middle-aged and older adults with a history of COVID-19 (CV COVID): a protocol for a randomised controlled trialStudy timeline: time schedule of enrolment, intervention and assessment for visits 1 and 2. ECG, electrocardiogram; CPEX, Cardiopulmonary exercise stress test; HRV, heart rate variability; wk., weekBack to article page