Results 81 to 90 of about 27,674 (249)
Experimental Physiology, EarlyView.Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti +6 more
wiley +1 more source
The Applicability of Nonlinear Systems Dynamics Chaos Measures to Cardiovascular Physiology Variables [PDF]
, 1991 Three measures of nonlinear chaos (fractal dimension, Approximate Entropy (ApEn), and Lyapunov exponents) were studied as potential measures of cardiovascular condition.
Hooker, John C.
core +1 more source
Impact of deconditioning on the secondary electron yield of Cu surfaces in particle accelerators
Physical Review Accelerators and Beams, 2020 Electron cloud is a critical phenomenon in particle accelerators operating with high intensity and positively charged beams, as it is responsible for beam instabilities, vacuum degradation, and heat load on cryogenic sections.
V. Petit +5 more
doaj +1 more source
Biomedical problems encountered by man in space which have been identified as a result of previous experience in simulated or actual spaceflight include cardiovascular deconditioning, motion sickness, bone loss, muscle atrophy, red cell alterations ...
core +1 more source
Blood flow restriction exercise during microgravity exposure in parabolic flight
Experimental Physiology, EarlyView.Abstract This case report evaluates whether it is possible to perform blood flow restriction (BFR) exercise during exposure to microgravity. The objectives were three‐fold: (1) to determine if a personalised tourniquet system (PTS) hardware technology performs nominally and enables BFR exercise in microgravity; (2) to determine if BFR augments the ...
Yannick Laflamme +2 more
wiley +1 more source
Editorial: Rising stars in environmental, aviation and space physiology: 2022
Frontiers in Physiology, 2023 Alina Saveko +6 more
doaj +1 more source
Adaptation to prolonged bedrest in man: A compendium of research [PDF]
A compilation of major studies that describe the clinical observations and elucidate the physiological mechanisms of the adaptive process of man undergoing prolonged bed rest is presented.
Dorchak, K. J. +3 more
core +1 more source
Experimental Physiology, EarlyView.Abstract The aim of this work was to assess the effect of heat exposure on cardiorespiratory and haematological responses during de‐training and re‐training. Nineteen men (33.8 ± 2.7 years; 182 ± 5.7 cm, 84.4 ± 9.3 kg) completed 4 weeks of pre‐training followed by heat exposure (HEAT; n = 9) or control (CON; n = 10).
Scott Cocking +10 more
wiley +1 more source
Adaptation to microgravity, deconditioning, and countermeasures
The Journal of Physiological Sciences, 2017 Humans are generally in standing or sitting positions on Earth during the day. The musculoskeletal system supports these positions and also allows motion. Gravity acting in the longitudinal direction of the body generates a hydrostatic pressure difference and induces footward fluid shift.
Kunihiko Tanaka +2 more
openaire +2 more sources
Possible biomedical applications and limitations of a variable-force centrifuge on the lunar surface: A research tool and an enabling resource [PDF]
Centrifuges will continue to serve as a valuable research tool in gaining an understanding of the biological significance of the inertial acceleration due to gravity.
Cowing, Keith L.
core +1 more source