Results 111 to 120 of about 11,209,189 (141)
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Acta Astronautica, 1994
1.4 G, 1.7 G, and 2.0 G of +Gz and 60 minutes centrifugation was adopted to 20 healthy male subjects using 1.8 m radius centrifuge equipped to Nihon University School of Medicine. G was applied from lower G, considering G training effect for the subjects.
K Yajima, A Miyamoto
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1.4 G, 1.7 G, and 2.0 G of +Gz and 60 minutes centrifugation was adopted to 20 healthy male subjects using 1.8 m radius centrifuge equipped to Nihon University School of Medicine. G was applied from lower G, considering G training effect for the subjects.
K Yajima, A Miyamoto
exaly +3 more sources
Human Physiology, 2022
A series of +Gz runs on a short-arm human centrifuge (SAHC) was performed in support of the proposal to design a centrifuge as a source of gravity aboard piloted exploration vehicles. Nine male volunteers participated in a 3-stage experiment with exposure to 2.1 g, 2.41 g and 2.92 g. The runs were accompanied by electroencephalography monitoring (EEG).
D.V. Schastlivtseva +3 more
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A series of +Gz runs on a short-arm human centrifuge (SAHC) was performed in support of the proposal to design a centrifuge as a source of gravity aboard piloted exploration vehicles. Nine male volunteers participated in a 3-stage experiment with exposure to 2.1 g, 2.41 g and 2.92 g. The runs were accompanied by electroencephalography monitoring (EEG).
D.V. Schastlivtseva +3 more
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Implementation of short-arm human centrifugation with an altered rotational axis position
2016 IEEE Aerospace Conference, 2016Exposure to microgravity causes a head-ward fluid shift that current spaceflight countermeasures fail to fully ameliorate. Artificial gravity (AG) through short-arm human centrifugation (SAHC) has been proposed as a possible countermeasure. Whilst the responses to increasing g-levels have been well characterized, the effects of a shift in rotational ...
Laing, Charles +4 more
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Medical Engineering & Physics, 2022
Precise, sensitive, and non-invasive estimates of stroke volume index (SVI) would facilitate clinical decision making and tracking of cardiorespiratory fitness in space. Thoracic electrical bioreactance (TEBR) is capable of providing valid SVI estimates on Earth; however, its reliability in response to simulated sustained gravitational transitions is ...
Fabio Zecca +4 more
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Precise, sensitive, and non-invasive estimates of stroke volume index (SVI) would facilitate clinical decision making and tracking of cardiorespiratory fitness in space. Thoracic electrical bioreactance (TEBR) is capable of providing valid SVI estimates on Earth; however, its reliability in response to simulated sustained gravitational transitions is ...
Fabio Zecca +4 more
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Aerospace and Environmental Medicine, 2021
We performed a psychophysiological comparison of two groups of subjects under modeled space microgravity: one was not offered any countermeasure and the other, rotated on a short-arm centrifuge. Speech analysis and cognitive testing revealed changes at the onset and during acute adaptation. Some of the speech parameters correlated well with the results
S.A. Lebedeva, D.М. Shved
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We performed a psychophysiological comparison of two groups of subjects under modeled space microgravity: one was not offered any countermeasure and the other, rotated on a short-arm centrifuge. Speech analysis and cognitive testing revealed changes at the onset and during acute adaptation. Some of the speech parameters correlated well with the results
S.A. Lebedeva, D.М. Shved
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European Journal of Applied Physiology, 2015
We hypothesized that lower body microvessels are particularly challenged during exposure to gravity and hypergravity leading to failure of resistance vessels to withstand excessive transmural pressure during hypergravitation and gravitation-dependent microvascular blood pooling.Using a short-arm human centrifuge (SAHC), 12 subjects were exposed to +1Gz,
Habazettl, Helmut +6 more
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We hypothesized that lower body microvessels are particularly challenged during exposure to gravity and hypergravity leading to failure of resistance vessels to withstand excessive transmural pressure during hypergravitation and gravitation-dependent microvascular blood pooling.Using a short-arm human centrifuge (SAHC), 12 subjects were exposed to +1Gz,
Habazettl, Helmut +6 more
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European Journal of Applied Physiology, 2015
Orthostatic intolerance continues to be a problem with astronauts upon return to Earth as a result of cerebral and cardiovascular adaptations to weightlessness. We tested the hypothesis that artificial gravity from a short-arm human centrifuge (SAHC) could provide cerebral and cardiovascular stimuli similar to upright posture and thereby serve as a ...
Nandu Goswami, Da Xu, Andrew Blaber
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Orthostatic intolerance continues to be a problem with astronauts upon return to Earth as a result of cerebral and cardiovascular adaptations to weightlessness. We tested the hypothesis that artificial gravity from a short-arm human centrifuge (SAHC) could provide cerebral and cardiovascular stimuli similar to upright posture and thereby serve as a ...
Nandu Goswami, Da Xu, Andrew Blaber
exaly +3 more sources
[Development and application of self-powered short arm human centrifuge].
Hang tian yi xue yu yi xue gong cheng = Space medicine & medical engineering, 2003To present the development and application of a self-powered short arm human centrifuge.Self-powered short arm human centrifuge consisted of human power, adjustable resistance trig, short arm and supporting construction parts. It was driven by human power. The short arm turned around the supporting part so artificial gravity is produced.
Xi-qing, Sun +4 more
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Microgravity Science and TechnologyAbstract The decrease in orthostatic tolerance due to the deconditioning of cardiovascular system after space flight remains an urgent problem. The effect of longitudinal overloads on a short-arm human centrifuge (SAHC) is believed to be useful in preventing a decrease in orthostatic tolerance in astronauts after spaceflight through regular ...
Maria Vladimirovna Fedchuk +7 more
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[Hydro-mechanical effects on human blood vessels of rotations on a short-arm centrifuge].
Aviakosmicheskaia i ekologicheskaia meditsina = Aerospace and environmental medicine, 2004Methods of mathematical modeling in the interests of gravitational therapy revealed a number of specific effects of the short-radius centrifuge (SRC) on human leg vessels. The concepts of local g-loads and local hydrostatic pressure during exposure to the gravitational and inertial forces have been formulated.
V A, Akulov, R A, Vartbaronov
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