I don't think you'll find a (modern) doctor on earth who recommends anything that requires strenuous activity as a cure for a cold/flu.
When you exercise you are essentially "breaking" bits of your body, diverting/stalling the energy from repairing the illness which the body is already using up it's resources to fix. you are giving it more work to do which will increase recovery time.
If results were directly proportional to the amount of training we could load on ourselves without recovery then we'd have an easy job of working out our training, unfortunately smashing ourselves into the ground will give us the result of being smashed into the ground. Which is why rest and specific recovery is as important to training as volume and intensity of workout.
I'm not a believer in training when ill.
I don't think you'll find a (modern) doctor on earth who recommends anything that requires strenuous activity as a cure for a cold/flu.
When you exercise you are essentially "breaking" bits of your body, diverting/stalling the energy from repairing the illness which the body is already using up it's resources to fix. you are giving it more work to do which will increase recovery time.
If results were directly proportional to the amount of training we could load on ourselves without recovery then we'd have an easy job of working out our training, unfortunately smashing ourselves into the ground will give us the result of being smashed into the ground. Which is why rest and specific recovery is as important to training as volume and intensity of workout.