Hypoxia-Ischemia, BrainCerebral PalsyAnoxiaAnimals, NewbornHypoxia, BrainIschemiaPlethysmography, Whole BodyBrain IschemiaCell HypoxiaPia MaterHypercapniaNeuroprotective AgentsRats, Sprague-DawleyHypotensionMyocardial IschemiaBrainCerebrovascular CirculationDisease Models, AnimalCell DeathRats, WistarBell PalsyCerebral ArteriesNeuronsReperfusion InjuryCerebral InfarctionFetal HypoxiaMuscle SpasticityOxygenIschemic Attack, TransientHemiplegiaEquinus DeformityInfarction, Middle Cerebral ArteryTime FactorsMyocardial Reperfusion InjuryHypoxia-Inducible Factor 1, alpha SubunitReperfusionMiddle Cerebral Artery