Search Results - "Loeppky, J A"
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Does heat acclimation improve exercise capacity at altitude? A cross-tolerance model
Published in International journal of sports medicine (01-11-2014)“…New approaches to inducing altitude acclimation in a relatively short timeframe are needed, as it is not practical for many soldiers and athletes to gain…”
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2
Exercise exacerbates acute mountain sickness at simulated high altitude
Published in Journal of applied physiology (1985) (01-02-2000)“…1 Division of Physiology, Department of Life Sciences, New Mexico Highlands University, Las Vegas 87701-9000; 2 Lovelace Respiratory Research Institutes,…”
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3
Variations in exercise ventilation in hypoxia will affect oxygen uptake
Published in Physiology international (17-10-2020)“…Reports of VO2 response differences between normoxia and hypoxia during incremental exercise do not agree. In this study VO2 and VE were obtained from 15-s…”
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4
Plasma volume after heat acclimation: Variations due to season, fitness and methods of measurement
Published in Acta physiologica Hungarica (01-09-2015)“…The reported magnitude of plasma volume increase (Δ%PV) following heat acclimation (HA) varies widely. Variations may result from differences in measurement…”
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5
Acute mountain sickness: increased severity during simulated altitude compared with normobaric hypoxia
Published in Journal of applied physiology (1985) (01-11-1996)“…Robert C. Roach, Jack A. Loeppky, and Milton V. Icenogle Copenhagen Muscle Research Center, Rigshospitalet, DK 2200 Copenhagen N, Denmark; The Lovelace…”
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6
Effect of head-down tilt on brain water distribution
Published in European journal of applied physiology (01-03-1999)“…Vascular and tissue fluid dynamics in the microgravity of space environments is commonly simulated by head-down tilt (HDT). Previous reports have indicated…”
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7
Effects of acid-base status on acute hypoxic pulmonary vasoconstriction and gas exchange
Published in Journal of applied physiology (1985) (01-05-1992)“…To investigate the relationship between hypoxic pulmonary vasoconstriction and respiratory and metabolic acidosis and respiratory alkalosis, the pulmonary gas…”
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8
V E STPD as a measure of ventilatory acclimatization to hypobaric hypoxia
Published in Physiology international (01-09-2016)“…This study compared the ventilation response to an incremental ergometer exercise at two altitudes: 633 mmHg (resident altitude = 1,600 m) and following acute…”
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9
Beat-by-beat stroke volume assessment by pulsed Doppler in upright and supine exercise
Published in Journal of applied physiology: respiratory, environmental and exercise physiology (01-06-1981)“…A 3.0 MHz pulsed Doppler echocardiography was used to estimate instantaneous stroke volume (SV) and cardiac output (Q) in eight men during steady-state supine…”
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10
Acute effects of head-down tilt and hypoxia on modulators of fluid homeostasis
Published in Journal of clinical pharmacology (01-05-1994)“…In an effort to understand the interaction between acute postural fluid shifts and hypoxia on hormonal regulation of fluid homeostasis, the authors measured…”
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11
Abnormal cerebrovascular responses to CO2 in sleep apnea patients
Published in Sleep (New York, N.Y.) (01-01-1984)“…The responses of common carotid blood flow (CCF), pressure (BP), and resistance (R) to variations in respiratory gases were compared during waking periods in…”
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12
Comparison of noninvasive pulsed Doppler and Fick measurements of stroke volume in cardiac patients
Published in The American heart journal (01-02-1984)“…We compared simultaneous measurements of stroke volume by direct Fick (SVF) and noninvasive pulsed Doppler (SVD) techniques in 15 resting, supine cardiac…”
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13
Arterial-alveolar CO2 equilibration in exercising dogs during prolonged rebreathing
Published in Journal of applied physiology (1985) (01-05-1985)“…Arterial-alveolar equilibration of CO2 during exercise was studied by normoxic CO2 rebreathing in six dogs prepared with a chronic tracheostomy and…”
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14
Mean alveolar gases and alveolar-arterial gradients in pulmonary patients
Published in Journal of applied physiology: respiratory, environmental and exercise physiology (01-03-1979)“…In view of uncertainties about the best way to estimate mean alveolar gases in patients with ventilation-perfusion inequalities, three different methods were…”
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15
The effects of low levels of CO2 on ventilation during rest and exercise
Published in Aviation, space, and environmental medicine (01-04-1998)“…Measurements of pulmonary gas exchange are especially sensitive to low levels of CO2 in the environment; this is an important consideration in measurements in…”
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16
Sleep apnea and autonomic cerebrovascular dysfunction
Published in Sleep (New York, N.Y.) (01-02-1987)“…Changes in common carotid blood flow (CCF) and resistance index (RI), calculated from velocity waveforms by a noninvasive pulsed Doppler technique, were…”
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17
Fluctuations in O2 stores and gas exchange with passive changes in posture
Published in Journal of applied physiology (1948) (01-07-1975)“…To clarify the role of O2 stores in the fluctuations in VO2 observed with changing posture, O2 intake (Veo2) and pulmonary capillary O2 transfer (Vpco2) were…”
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18
Total body water and lean body mass estimated by ethanol dilution
Published in Journal of applied physiology: respiratory, environmental and exercise physiology (01-06-1977)“…Total body water (TBW) was determined on 35 subjects with a tritium (HTO) and an ethanol (ETH) dilution method, the latter using breath analyses for blood…”
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19
Acute ventilatory response to simulated altitude, normobaric hypoxia, and hypobaria
Published in Aviation, space, and environmental medicine (01-11-1996)“…Some reports claim that ventilation (VE) is greater in human subjects in normobaric hypoxia than at altitude following an equivalent drop in inspired PO2…”
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20
Ventilation during simulated altitude, normobaric hypoxia and normoxic hypobaria
Published in Respiration physiology (01-03-1997)“…To investigate the possible effect of hypobaria on ventilation (V̇ e) at high altitude, we exposed nine men to three conditions for 10 h in a chamber on…”
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