Passive recovery, instead of active recovery, is a form of rest that is recommended to be performed by athletes in between rigorous, intermittent exercise. With active recovery, time to exhaustion is much shorter because the muscles are deoxygenated at a much quicker rate than with passive recovery. Thus, if avoiding<unk>  means preventing exhaustion, passive recovery or "static rest" is safest. If active recovery is performed during intense exercise, an athlete may find themselves in a state of being overtrained. The gradual variation of intensity and volume of training is also an effective way to prevent<unk> .
Overtraining
Deconditioning
Preconditioning 
Allostatic load
Stress shielding
Homeostasis
Neuraxial blockade
Meditation