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Author: John F. Watson Publisher: ISBN: Category : Acceleration (Physiology) Languages : en Pages : 26
Book Description
"Static relaxation pressure volume curves of the thorax and lung were obtained on 4 trained subjects while in the supine position on the human centrifuge at 1, 2, 3, and 4 g. As acceleration increased, the intrapulmonic pressure increased for a constant volume shifting the pressure volume curve downward and to the right. Compliance of the thorax and lung decreases from 1 to 4 g as the result of the fall in pulmonary mid-position. Inspiration during 4 g acceleration, regardless of the end expiratory position was always active. Elastic work of breathing approximately doubles from 1 to 4 g while non-elastic work does not change. Absolute lung volumes during acceleration decrease proportionately with the exception of residual volume which did not change. Since these changes are similar to those described during negative pressure breathing, positive pressure breathing is suggested as a means by which respiration during forward acceleration may be improved and toleration increased."--Abstract.
Author: John F. Watson Publisher: ISBN: Category : Acceleration (Physiology) Languages : en Pages : 26
Book Description
"Static relaxation pressure volume curves of the thorax and lung were obtained on 4 trained subjects while in the supine position on the human centrifuge at 1, 2, 3, and 4 g. As acceleration increased, the intrapulmonic pressure increased for a constant volume shifting the pressure volume curve downward and to the right. Compliance of the thorax and lung decreases from 1 to 4 g as the result of the fall in pulmonary mid-position. Inspiration during 4 g acceleration, regardless of the end expiratory position was always active. Elastic work of breathing approximately doubles from 1 to 4 g while non-elastic work does not change. Absolute lung volumes during acceleration decrease proportionately with the exception of residual volume which did not change. Since these changes are similar to those described during negative pressure breathing, positive pressure breathing is suggested as a means by which respiration during forward acceleration may be improved and toleration increased."--Abstract.
Author: J. H. U. Brown Publisher: Academic Press ISBN: 1483225836 Category : Medical Languages : en Pages : 363
Book Description
Physiology of Man in Space describes the physiological responses of man under the extremes of space flight. This book is composed of eight chapters that specifically examine the physiological responses of astronaut under zero gravity conditions. The introductory chapter demonstrates how human neuromuscular system can withstand the stresses of short-term space travel. The succeeding chapters describe human responses under space acceleration stress. These topics are followed by discussions on human stress tolerance capacity; psychological aspects of space flight; instrumentation in biomedical capsules in space flight; and the phenomenon of space weightlessness. The final chapter deals with the impact of the environment on the man and the impact that the man has on the environment, including environmental, metabolic, and waste removal parameters. This book is of value to space scientists and researchers.
Author: John F. Watson
Author: John F. Watson
Author: I︠U︡riĭ Evgenʹevich Moskalenko
Author: 
Author: United States. Air Force. Systems Command. Aeronautical Systems Division
Author: J. H. U. Brown
Author: United States. National Aeronautics and Space Administration
Author: Neville P. Clarke (Captain, USAF (VC))
Author: 
Author: John Clifford Stickney
Author: