Effect of high-altitude exposure in the elderly: the Tenth Mountain Division studyB D Levine
The Institute for Exercise and Environmental Medicine, Presbyterian Hospital of Dallas, and Division of Cardiology, University of Texas Southwestern Medical Center at Dallas, USA
Circulation 96:1224-32. 1997
..We hypothesized that the elderly would exhibit an impaired functional capacity at altitude, with increased myocardial ischemia compared with sea level (SL)...
- "Living high-training low": effect of moderate-altitude acclimatization with low-altitude training on performance
B D Levine
Institute for Exercise and Environmental Medicine, Presbyterian Hospital of Dallas 75231, Dallas, Texas 75235, USA
J Appl Physiol 83:102-12. 1997
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- Cardiac atrophy after bed-rest deconditioning: a nonneural mechanism for orthostatic intolerance
B D Levine
Institute for Exercise and Environmental Medicine, Presbyterian Hospital of Dallas, Tex 75321, USA
Circulation 96:517-25. 1997
..We hypothesized that this large fall in SV is due to a change in cardiac mechanics...
- A 30-year follow-up of the Dallas Bedrest and Training Study: II. Effect of age on cardiovascular adaptation to exercise training
D K McGuire
Pauline and Adolph Weinberger Laboratory for Cardiopulmonary Research, University of Texas Southwestern Medical Center, Dallas, TX 75390 9047, USA
Circulation 104:1358-66. 2001
..The improved aerobic power after training was primarily the result of peripheral adaptation, with no effective improvement in maximal oxygen delivery...
- Effects of spaceflight on human calf hemodynamics
D E Watenpaugh
Department of Physiology, University of Texas Southwestern Medical Center, Dallas, Texas 75235, USA
J Appl Physiol 90:1552-8. 2001
..No calf hemodynamic result exhibited obvious mechanistic implications for postflight orthostatic intolerance...
- A 30-year follow-up of the Dallas Bedrest and Training Study: I. Effect of age on the cardiovascular response to exercise
D K McGuire
Pauline and Adolph Weinberger Laboratory for Cardiopulmonary Research, University of Texas Southwestern Medical Center, Dallas, TX 75390 9047, USA
Circulation 104:1350-7. 2001
..Our study objective was to assess the effect of a 30-year interval on body composition and cardiovascular response to acute exercise in 5 healthy subjects originally evaluated in 1966...
- Cardiac atrophy after bed rest and spaceflight
M A Perhonen
Institute for Exercise and Environmental Medicine, Presbyterian Hospital of Dallas, Texas 75231, USA
J Appl Physiol 91:645-53. 2001
..We suggest that cardiac atrophy is due to a physiological adaptation to reduced myocardial load and work in real or simulated microgravity and demonstrates the plasticity of cardiac muscle under different loading conditions...
- Deterioration of left ventricular chamber performance after bed rest : "cardiovascular deconditioning" or hypovolemia?
M A Perhonen
Institute for Exercise and Environmental Medicine, Presbyterian Hospital and University of Texas Southwestern Medical Center, Dallas, Texas, USA
Circulation 103:1851-7. 2001
..We studied whether the reduction in SV is due to a specific adaptation of the heart to head-down tilt bed rest (HDTBR) or acute hypovolemia alone...
- Effect of increasing central venous pressure during passive heating on skin blood flow
C G Crandall
Institute for Exercise and Environmental Medicine, Presbyterian Hospital of Dallas, Dallas 75231, Texas, USA
J Appl Physiol 86:605-10. 1999
..05). These data suggest that cardiopulmonary baroreceptor unloading during passive heating may attenuate the elevation in SkBF in humans, whereas loading cardiopulmonary baroreceptors in normothermia has no effect on SkBF...
- The effects of altitude training are mediated primarily by acclimatization, rather than by hypoxic exercise
B D Levine
Institute for Exercise and Environmental Medicine, Presbyterian Hospital of Dallas, University of Texas Southwestern Medical Center at Dallas, USA
Adv Exp Med Biol 502:75-88. 2001
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- Effects of whole body heating on dynamic baroreflex regulation of heart rate in humans
C G Crandall
Institute for Exercise and Environmental Medicine, Presbyterian Hospital of Dallas, Dallas 75231, USA
Am J Physiol Heart Circ Physiol 279:H2486-92. 2000
..Reduced vagal baroreflex regulation of HR may contribute to reduced orthostatic tolerance known to occur in humans during heat stress...
- Effect of high-intensity hypoxic training on sea-level swimming performances
M J Truijens
Institute for Exercise and Environmental Medicine, Presbyterian Hospital of Dallas and University of Texas Southwestern Medical Center at Dallas, 75231, USA
J Appl Physiol 94:733-43. 2003
..58). We conclude that 5 wk of high-intensity training in a flume improves sea-level swimming performances and Vo(2 max) in well-trained swimmers, with no additive effect of hypoxic training...
Effect of altitude on football performanceB D Levine
Institute for Exercise and Environmental Medicine, Presbyterian Hospital of Dallas, University of Texas Southwestern Medical Center at Dallas, Texas 75231, USA
Scand J Med Sci Sports 18:76-84. 2008
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- Carotid sinus "irritability" rather than hypersensitivity: a new name for an old syndrome?
C R Cole
The Institute of Exercise and Environmental Medicine, Presbyterian Hospital of Dallas, Texas 75231, USA
Clin Auton Res 11:109-13. 2001
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