Results 171 to 180 of about 1,264 (234)

Simulated microgravity increases CD226⁺ Lin^- CD117^- Sca1⁺ mesenchymal stem cells in mice. [PDF]

Physiol Rep
Zhou W, Li Y, Hou Y, Dan W, Chen L, Shi F, Zhao F, Fang L.   +7 more
europepmc   +1 more source

Functions and Therapeutic Potentials of Long Noncoding RNA in Skeletal Muscle Atrophy and Dystrophy. [PDF]

J Cachexia Sarcopenia Muscle
Zhang Y, Wang T, Wang Z, Shi X, Jin J.
europepmc   +1 more source

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Exercise response to simulated weightlessness

Acta Astronautica, 1979
Two bed rest analog studies of space flight were performed; one 14 d and the other 28 d in duration. Exercise response was studied in detail during the 28 d study and following both the 14 d and 28 d studies. This paper relates the results of these studies to physiologic changes noted during and following space flight.
C F, Sawin, J A, Rummel, M C, Buderer
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An upper arm model for simulated weightlessness

Acta Physiologica Scandinavica, 2000
This investigation examined the effects of 4 weeks of non‐dominant arm unloading on the functional and structural characteristics of the triceps brachii muscle of six normo‐active college‐age males (age: 23 ± 1 years, height: 176 ± 4 cm, weight: 76 ± 6 kg).
A C, Parcell, S W, Trappe, M P, Godard, D L, Williamson, W J, Fink, D L, Costill   +5 more
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The Effects of Simulated Weightlessness on Bone Maturation*

Endocrinology, 1987
In earlier studies we showed that elevating the hind limbs of growing rats for up to 2 weeks results in a temporary cessation of bone growth in the hind limbs and a transient fall in the serum levels of 1,25-dihydroxyvitamin D. To determine whether such skeletal unloading also retards the maturation of bone, as seen in vitamin D-deprived animals, we ...
D D, Bikle, B P, Halloran, C M, Cone, R K, Globus, E, Morey-Holton   +4 more
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Correlation of macro and micro cardiovascular function during weightlessness and simulated weightlessness

Acta Astronautica, 1988
The investigation of cardiovascular function necessarily involves a consideration of the exchange of substances at the capillary. If cardiovascular function is compromised or in any way altered during exposure to zero gravity in space, then it stands to reason that microvascular function is also modified.
P M, Hutchins, T H, Marshburn, T L, Smith, S W, Osborne, C D, Lynch, S J, Moultsby   +5 more
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Changes of brain response induced by simulated weightlessness

Acta Astronautica, 1992
The characteristics change of brain response was studied during 15 degrees head-down tilt (HDT) comparing with 45 degrees head-up tilt (HUT). The brain responses evaluated included the EEG power spectra change at rest and during mental arithmetic, and the event-related potentials (ERPs) of somatosensory, selective attention and mental arithmetic ...
J, Wei, G, Yan, Z, Guan
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Study of Temperature Homeostasis in Real and Simulated Weightlessness

Human Physiology, 2002
The analysis of the temperature (T) reaction of the body of healthy humans was carried out using the results of investigations with the thermometry technique under antiorthostatic hypokinesia (ANOH) (38 males in the studies of 14- to 49-day duration, eight females, 120 days), isolation in a regenerated gas environment (six males, 90 to 135 days), suit ...
N G, Lakota, I M, Larina
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A mathematical and experimental simulation of the hematological response to weightlessness

Acta Astronautica, 1979
Two ground-based methods of weightlessness simulation--a computer model of erythropoiesis feedback regulation and bedrest--were used to investigate the mechanisms which lead to loss of red cell mass during spaceflight. Both methods were used to simulate the first Skylab mission of 28 days.
S L, Kimzey, J I, Leonard, P C, Johnson
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Effects of muscle electrostimulation during simulated weightlessness

Acta Astronautica, 1975
In a 45-day experiment test subjects were exposed to bed rest with their heads down at -4 degrees C. Twice a day their muscles of the stomach, back, femur, and shin were stimulated with electric current for 25-30 min. The value of muscle tension was close to their maximum voluntary contraction.
L I, Kakurin, B B, Yegorov, Y I, Il'ina, M A, Cherepakhin   +3 more
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