Efficacy of Two Therapeutic Exercise Modalities for Patients With Persistent COVID

"The components of the exercise programe will be: muscle strength training and continuous-variable aerobic training or HIIT with loads between 70-90% of maximum heart rate. The aerobic training will last about 30 minutes and will then be completed with muscle training of the upper and lower limbs with loads determined according to the perception of effort (loads around 50-70%). The sessions will be monitored with pulse oximetry (heart rate and oxygen saturation), perception of fatigue and sensation of suffocation (Borg scale). The intensity of each component of the programme will be individualised according to the conditions of each subject.~Adherence to the programme will be recorded as successful when participation in the sessions is greater than 80% of the total number of sessions."