title: Early ambulation: the physiologic basis revisited.
mesh_terms: D001510:Bed Rest / Q000009:adverse effects; D001026:Coronary Artery Bypass / Q000534:rehabilitation; D003327:Coronary Disease / Q000503:physiopathology / Q000523:psychology / Q000534:rehabilitation*; D004434:Early Ambulation; D006339:Heart Rate; D006801:Humans; D007024:Hypotension, Orthostatic / Q000209:etiology; D009119:Muscle Contraction; D005082:Physical Exertion; D001261:Pulmonary Atelectasis / Q000209:etiology; D013923:Thromboembolism / Q000209:etiology