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There are a total of 207 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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Effect of hemorrhage on cardiac output, vasopressin, aldosterone, and diuresis during immersion in men
Author(s): Greenleaf, J. E.; Simanonok, K.; Bernauer, E. M.; Wade, C. E.; Keil, L. C.
Abstract: The purpose of this research was to test the hypotesis that a reduction in blood volume would attenuate or eliminate immersion-induced increases in cardiac output (Q(sub co)) and urine excretion, and to investigate ...
NASA Center: Ames Research Center
Publication Year: 1992
Added to NTRS: 2005-08-25
Accession Number: 93N12014; Document ID: 19930002826; Report Number: A-92141, NAS 1.15:103949, NASA-TM-103949
Proprioceptive isokinetic exercise test
Author(s): Dempster, P. T.; Bernauer, E. M.; Bond, M.; Greenleaf, J. E.
Abstract: Proprioception, the reception of stimuli within the body that indicates position, is an important mechanism for optimal human performance. People exposed to prolonged bed rest, microgravity, or other deconditioning ...
NASA Center: Ames Research Center
Publication Year: 1993
Added to NTRS: 2005-08-25
Accession Number: 94N27227; Document ID: 19940022724; Report Number: A-93070, NAS 1.15:104015, NASA-TM-104015
Reduction of Serum Uric Acid in Young Men During Physical Training
Author(s): Bosco, James S.; Greenleaf, J. E.; Kaye, Ronald L.; Averkin, E. G.
Abstract: The effects of eight weeks of chronic physical exercise (training) on serum sodium urate concentration were investigated. Thirty normal, healthy male college students, aged 18 to 29, comprised the sample. Ten students were ...
NASA Center: Ames Research Center
Publication Year: 1970
Added to NTRS: 2005-08-25
Accession Number: 97N71962; Document ID: 19970020387; Report Number: NAS 1.15:112379, NASA-TM-112379
Leg muscle volume during 30-day 6-degree head-down bed rest with isotonic and isokinetic exercise training
Author(s): Greenleaf, J. E.; Lee, P. L.; Ellis, S.; Selzer, R. H.; Ortendahl, D. A.
Abstract: Magnetic resonance imaging (MRI) was used to compare the effect of two modes of lower-extremity exercise training on the mass (volume) of posterior leg group (PLG) muscles (soleus, flexor hallucis longus, tibialis posterior, ...
NASA Center: Ames Research Center
Publication Year: 1994
Added to NTRS: 2005-08-25
Accession Number: 94N29401; Document ID: 19940024898; Report Number: A-94054, NAS 1.15:4580, NASA-TM-4580
Hypervolemia in men from drinking hyperhydration fluids at rest and during exercise
Author(s): Greenleaf, J. E.; Looftwilson, R.; Wisherd, P. P.; Fung, P. P.; Ertl, A. C.; Jackson, C. G. R.; Barnes, P. R.; Wong, L. G.
Abstract: To test the hypothesis that drink composition is more important than drink osmolality (Osm) for maintaining and increasing plasma volume (PV) at rest and during exercise, six men (22-39 yr, 76.84 /- 16.19 kg, 2.99 /- 0.45 ...
NASA Center: Ames Research Center
Publication Year: 1994
Added to NTRS: 2005-08-25
Accession Number: 95N21544; Document ID: 19950015127; Report Number: A-94138, NAS 1.15:4657, NASA-TM-4657
Maximal Oxygen Uptake, Sweating and Tolerance to Exercise in the Heat
Author(s): Greenleaf, J. E.; Castle, B. L.; Ruff, W. K.
Abstract: The physiological mechanisms that facilitate acute acclimation to heat have not been fully elucidated, but the result is the establishment of a more efficient cardiovascular system to increase heat dissipation via increased ...
NASA Center: Ames Research Center
Publication Year: 1972
Added to NTRS: 2005-08-25
Document ID: 19980211538; Report Number: NAS 1.15:112447, NASA/TM-1972-112447
Changes in Body Temperatures During Prolonged Physical Exercise and their Influence on Muscle Metabolism in Dogs
Author(s): Kozlowski, S.; Kaciuba-Uscilko, H.; Nazar, K.; Brzezinska, Z.; Kruk, B.; Greenleaf, J. E.
Abstract: Increasing body temperature during physical work is one of the important factors limiting endurance performance. The mechanism of this effect is not fully understood. It is known, however, that exercise-hyperthermia ...
NASA Center: Ames Research Center
Publication Year: 1984
Added to NTRS: 2005-08-25
Accession Number: 97N72404; Document ID: 19970031756; Report Number: NAS 1.15:112439, NASA-TM-112439, PAS Proj. - 10.4
Drink composition and cycle-ergometer endurance in men: Carbohydrate, Na(), osmolality
Author(s): Greenleaf, J. E.; Looft-Wilson, R.; Wisherd, J. L.; Marchman, N.; Wells, T.; Barnes, P. R.; Wong, L. G.
Abstract: Cycle-ergometer endurance performance was determined in 5 untrained men (22-39 yr, 62.4-100.5 kg, 29-55 mL x min(exp -1) x kg(exp -1) peak oxygen uptake) after consuming Nothing (N) or two fluid formulations (10 mL x kg(exp ...
NASA Center: Ames Research Center
Publication Year: 1994
Added to NTRS: 2005-08-25
Accession Number: 95N19140; Document ID: 19950012725; Report Number: A-94137, NAS 1.15:4650, NASA-TM-4650
Adaptation to prolonged bedrest in man: A compendium of research
Author(s): Greenleaf, J. E.; Greenleaf, C. J.; Vanderveer, D.; Dorchak, K. J.
Abstract: A compilation of major studies that describe the clinical observations and elucidate the physiological mechanisms of the adaptive process of man undergoing prolonged bed rest is presented. Additional studies are included ...
NASA Center: Ames Research Center
Publication Year: 1976
Added to NTRS: 2005-08-25
Accession Number: 76N20807; Document ID: 19760013719; Report Number: A-6040, NASA-TM-X-3307
Cardiovascular responses during orthostasis - Effect of an increase in maximal O2 uptake
Author(s): Convertino, V. A.; Montgomery, L. D.; Greenleaf, J. E.
Abstract: A study is described which tests the hypothesis that changes in aerobic activity (increases in maximum oxygen uptake) will reduce the effectiveness of cardiovascular reflexes to regulate blood pressure during orthostasis. ...
NASA Center: Ames Research Center
Publication Year: 1984
Added to NTRS: 2004-11-03
Accession Number: 84A43730; Document ID: 19840060943
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