Zobrazeno 1 - 10
of 22
pro vyhledávání: '"R. D. Latham"'
Autor:
Dan Ewert, R. D. Swope, R. D. Latham, Steven C. Koenig, J. W. Fanton, C. A. Reister, J. D. Schaub
Publikováno v:
Medical Engineering & Physics. 20:410-417
Investigative research efforts using a cardiovascular model required the determination of central circulatory haemodynamic and arterial system parameters for the evaluation of cardiovascular performance. These calculations required continuous beat-to
Publikováno v:
Proceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Societ.
Publikováno v:
Aviation, space, and environmental medicine. 72(1)
The role of physiological elastance (Ep) in maximizing external work (EW) transfer is not well understood and has not been investigated during microgravity and increased acceleration conditions. By better understanding this relationship, cardiovascul
Publikováno v:
Annals of biomedical engineering. 27(4)
Numerous parameter estimation techniques exist for characterizing the arterial system using electrical circuit analogs. These techniques are often limited by requiring steady-state beat conditions and can be computationally expensive. Therefore, a ne
Publikováno v:
Journal of investigative surgery : the official journal of the Academy of Surgical Research. 6(5)
A model was developed for evaluation of cardiovascular parameters in conscious baboons exposed to altered gravitational environments. Baboons were trained to sit quietly in a confinement chair of unique design which allowed a range of normal physical
Publikováno v:
The American journal of physiology. 265(1 Pt 2)
Studies of the hydraulic loading conditions on the heart in humans, especially pulsatile load, have primarily been limited to the supine state. Therefore, we have chosen a nonhuman primate model, the baboon, to assess left ventricular/vascular coupli
Publikováno v:
The Physiologist. 36
The condition of microgravity during spaceflight imposes a new challenge to the cardiovascular system and to its homeostatic mechanisms. Initial fluids shifts from the dependent parts to the upper parts of the body are supposed to induce a plethora o
Publikováno v:
The Physiologist. 36
Theoretical concepts hold that blood in the gravity-dependent portion of the body would relocate to more cephalad compartments under microgravity conditions. The result is an increase in blood volume in the thoracic and cardiac chambers. This increas
Publikováno v:
The Physiologist. 36
The central cardiovascular responses to transient microgravity are not well understood. Theoretically, entrance into microgravity results in the loss of the hydrostatic pressure head and an increase in central venous pressure (CVP) as a consequence o
Autor:
John W. Fanton, R. D. Latham, R. E. Mendenhall, Steven C. Koenig, R. W. Owens, D. A. Self, C. D. White
Publikováno v:
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
The Laboratory for Aerospace Cardiovascular Research (LACR) is a center for studying the effects of micro-and high (9Gz) gravitational forces on the cardiovascular system. Prior research efforts focused on determining pressure-volume-flow relationshi