Results 61 to 70 of about 876,542 (214)

Small muscle mass aerobic exercise in health and disease: Unique insights into muscle vascular and metabolic control and performance

Experimental Physiology, EarlyView.
Abstract Studies of small muscle mass exercise (SMME) have revealed that the peripheral O2 transport–utilization cascade is a dynamically regulated system in which perfusive and diffusive components can be selectively amplified, redistributed and mechanically limited depending on contraction pattern, recruitment strategy and intramuscular pressure ...
Shunsaku Koga, David C. Poole, Thomas J. Barstow, Dai Okushima, Richie P. Goulding   +4 more
wiley   +1 more source

Contribution of social isolation, restraint, and hindlimb unloading to changes in hemodynamic parameters and motion activity in rats. [PDF]

PLoS ONE, 2012
The most accepted animal model for simulation of the physiological and morphological consequences of microgravity on the cardiovascular system is one of head-down hindlimb unloading.
Darya Tsvirkun, Jennifer Bourreau, Aurélie Mieuset, Florian Garo, Olga Vinogradova, Irina Larina, Nastassia Navasiolava, Guillemette Gauquelin-Koch, Claude Gharib, Marc-Antoine Custaud   +9 more
doaj   +1 more source

Cardiovascular Deconditioning and Venous Air Embolism in Simulated Microgravity in the Rat [PDF]

, 1996
Astronauts conducting extravehicular activities undergo decompression to a lower ambient pressure, potentially resulting in gas bubble formation within the tissues and venous circulation.
Powell, M. R., Chelly, J. E., Butler,B. D., Robinson, R. R., Doursout, M.-F., Little, T. M.   +5 more
core  

Putting the brakes on muscle growth: Myostatin as regulator of disuse atrophy

Experimental Physiology, EarlyView.
Abstract Skeletal muscle is a highly plastic tissue that rapidly adapts to changes in mechanical loading and metabolic activity. Periods of inactivity, including bed rest, limb immobilization or microgravity, induce a pronounced loss of muscle mass and function.
Derk H. C. Nieuwenhuijsen, Moritz Eggelbusch, Rob C. I. Wüst   +2 more
wiley   +1 more source

Microelectronics bioinstrumentation systems [PDF]

, 1977
Microelectronic bioinstrumentation systems to be employed in the Cardiovascular Deconditioning Program were developed. Implantable telemetry systems for long-term monitoring of animals on earth were designed to collect physiological data necessary for ...
Ko, W. H.
core  

Vascular adaptation to 4 weeks of deconditioning by unilateral lower limb suspension.

, 2005
Contains fulltext : 48213.pdf (Publisher’s version ) (Open Access)Physical inactivity or deconditioning is an independent risk factor for atherosclerosis and cardiovascular disease.
Poelkens, F., Groot, P.C.E. de, Smits, P., Hopman, M.T.E., Bleeker, M.W.P., Rongen, G.A.P.J.M.   +5 more
core   +1 more source

Acute cardiovascular and muscular response to rowing ergometer exercise in artificial gravity – a pilot trial

npj Microgravity
Prolonged immobilization and spaceflight cause cardiovascular and musculoskeletal deconditioning. Combining artificial gravity through short-arm centrifugation with rowing exercise may serve as a countermeasure.
Timo Frett, Leo Lecheler, Michael Arz, Willi Pustowalow, Guido Petrat, Florian Mommsen, Jan Breuer, Marie-Therese Schmitz, David Andrew Green, Jens Jordan   +9 more
doaj   +1 more source

Chronotropic index mediates the relationship between lower-limb loss level and 6-minute walk test performance

Frontiers in Sports and Active Living
IntroductionLower-limb loss (LLL) significantly impacts exercise capacity. Low heart rate, i.e., chronotropic, response to exercise is known to contribute to reduced exercise capacity in other clinical populations; associations between population ...
Samantha J. Stauffer, Ryan T. Pohlig, Ryan T. Pohlig, David G. Edwards, Frank B. Sarlo, John R. Horne, Elisa S. Arch, Jaclyn M. Sions   +7 more
doaj   +1 more source

Exercise intolerance and impaired aerobic capacity in heart transplant recipients

Experimental Physiology, EarlyView.
Abstract Heart transplant recipients exhibit reduced exercise tolerance and persistently diminished aerobic capacity despite exercise training. Exercise tolerance depends on integrated oxygen transport and utilization, which are impaired in heart transplant recipients.
Fred W. Kolkhorst, Daniel T. Cannon, Harry B. Rossiter   +2 more
wiley   +1 more source

Blood flow restriction training in microgravity: a review of multisystem physiological benefits and implementation challenges for long-duration space missions

npj Microgravity
This review evaluates BFRT as a novel countermeasure against multisystem deconditioning (muscle atrophy, bone loss, cardiovascular impairment) during long-duration space missions.
Mingzhen Hu, Wei Li, Qiushi Yin, Yuqing Liu, Lin Chen, Qin Ru, Guodong Xu, Yuxiang Wu   +7 more
doaj   +1 more source