Introduction, John E. Greenleaf Psycho-Sociological Aspects of Confinement Deconditioning, Gro M. Sandal, Ragnar Vaernes, and Holger Ursin Effects of Deconditioning and Reconditioning on Aerobic Power, Victor A. Convertino Physiological Consequences of Deconditioning in Physically Active Populations, James A. Graves, Lori L. Ploutz-Snyder, and Michael L. Pollock Immobilization and Disuse Muscular Atrophy, Shawn R. Simonson Free Radical Processes in Conditioning and Deconditioning, Jozef Kedziora Water Immersion Deconditioning in Medicine, Andrzej Wiecek, Michal Nowicki, and Franciszek Kokot The Brittle Bones of Deconditioning, Helmut G. Hinghofer-Szalkay Bed Rest Muscular Atrophy - John E. Greenleaf Bed Rest and Orthostatic-Hypotensive Intolerance, Suzanne M. Schneider Thermoregulation During Deconditioning, Suzanne M. Schneider and John E. Greenleaf