Gravitational Physiology

Advances in Physiological Sciences, Volume 19: Gravitational Physiology covers the proceedings of the 28th International Congress of Physiological Sciences. The volume presents studies that tackle the biological concerns caused by the interactions between complex living organisms and altered gravitational field.
The articles in the text are organized into parts, based on their main theme. The first part presents materials about the general problems when adapting to altered gravity system, such as physiological mechanisms of adaptation of mammals to weightlessness, and studies of biorhythms in biosatellite experiments. In the next part, the selection presents papers about metabolism and morphology that include stress metabolic aspects in space flight and the effect of spaceflight on human lymphocyte activation. The text also covers the function and structure of gravity-dependent systems, along with hypokinesia and immobilization.
The book will be of great interest to health professionals involved in various space programs.

Contenu

Foreword
Preface
General problems. Adaptation to changed gravity
Remarks on present status of gravitational physiology
Physiological mechanisms of adaptation of mammals to weightlessness. Results of animal experiments aboard earth biological satellites
Animal resistance and reactivity during readaptation after an exposure to weightlessness
Artificial gravity as a countermeasure against adverse effects of weightlessness
Studies of biorhythms in biosatellite experiments
Rhythms of electrolyte and hydroxyproline excretion in urine of rats after three weeks of weightlessness (Biosatellite Cosmos-1129)
Ultrastructural qualitative and quantitative evaluation of cytoplasmatic structures of heart muscle in rats flown aboard biosputnik Cosmos-936
Physiological systems: metabolic and morphological studies
Effect of the mission Cosmos-1129 on body composition in the rat
Stress metabolic aspects in space flight
Weightlessness-induced morphological effects and stress-reactions of rats flown aboard biosatellites Cosmos
Studies of specific hepatic enzymes involved in the conversion of carbohydrates to lipids in rats exposed to prolonged spaceflight aboard Cosmos-1129
Neurochemical characteristics of rats after prolonged exposure to weightlessness
Effect of spaceflight on human lymphocyte activation
Function and structure of the gravity-dependent systems: Vestibular system, bone and muscle
Study of contractile properties and composition of myofibrillar proteins of skeletal muscles in the Cosmos-1129 experiment
Gravity-dependent variability of physiological properties of mammalian skeletal muscles
Morphometric analysis of rat muscle fibers following space flight
Bone resorption and calcium absorption in rats during spaceflight
Strength characteristics of rat spinal columns. Cosmos-1129
Bone growth in the rat mandible during spaceflight
Hypokinesia and immobilization
A new rat model for studies of hypokinesia and antiorthostasis
Influence of hypokinesis on functionally different skeletal muscles of rats
Structural and Na+ - K+ dependent ATP-ase modifications of skeletal muscle and myocardium of hypokinetic rats
Changes in the ATP-ase activity and protein composition of sarcoplasmic reticulum induced by immobilization of rabbit skeletal muscles
Plasticity of fast and slow muscle myofibrillar proteins in model experiments simulating weightlessness
Proteolytic enzymes in different kinds of skeletal muscles
Effect of immobilization on the excitatory and mechanical parameters of skeletal muscles with different types
Effect of immobilization on the nonhistone protein composition in different types of skeletal muscles
The changes in aerobic and anaerobic metabolism of skeletal muscles induced by immobilization
Studies on the brain capillaries of pregnant rats after experimental hypoxic exercises
Relations between respiratory and circulatory control during gravitational load in man
Varia-I
Gravitational adaptation of animals
Scaling of metabolic rate on body mass in small laboratory mammals
Some biochemical and morphological parameters in rat brain during +Gz acceleration
Alterations in heat loss and heat production mechanisms in rats exposed to hypergravic fields
Effect of space flight in biosatellites "Cosmos" on sympathetic-adrenomedullary activity of rats
Chronic central vascular expansion induces hypokalemia in conscious primates
Autonomic reactions in labyrinthectomized rabbits during angular acceleration
Labyrinth-plugging as a model of suspended vestibular sensory input
In vitro studies of 4 5Ca uptake and exchange by otoconia
The effect of space flight upon plasma and tissue lipids in rats: The Cosmos biosateUite program
Changes of deoxyribonucleoprotein and nucleic acids in spleen and thymus of rats flown onboard the Cosmos biosatellites
Varia-II
Initiation of nutation in sunflower hypocotyls
Changes of periodic protoplasmic movements on the fast clinostat
Thermal comfort of man in weightlessness
Aortic and tibial bloodflow response to lower body negative pressure (LBNP)
The application of blood flow velocity measurement under the influence of +Gz acceleration
Vibration and decompression gas bubbles
The effect of vibration on the gastric motility in rat
Relations between physiological effects of gravitational forces and those magnetic forces
Orthostatic tolerance and exercise response before and after 7 days simulated weightlessness
Changes in hemodynamics, blood oxygen saturation level and central nervous system in response to postural loading
Postural response in relation to the standing on inclined surfaces
The effect of acecazolamide on brain O2 metabolism
Index