Search Results - "Zuj, Kathryn"

Liver tissue changes during and post 6-month spaceflight as measured by ultrasound radio frequency signal processing by Arbeille, Philippe, Zuj, Kathryn, Guillon, Laurent

“…Analysis of ultrasound radio frequency (RF) signals allows for the determination of the index of reflectivity (IR), which is a new measure that is dependent on…”
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Carotid and Femoral Arterial Wall Distensibility During Long-Duration Spaceflight by Arbeille, Philippe, Provost, Romain, Zuj, Kathryn

“…This study aimed to assess changes in common carotid (CA) and superficial femoral (FA) arterial stiffness during long-duration spaceflight. Ultrasound imaging…”
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DI-5-Cuffs: Lumbar Intervertebral Disc Proteoglycan and Water Content Changes in Humans after Five Days of Dry Immersion to Simulate Microgravity by Treffel, Loïc, Navasiolava, Nastassia, Mkhitaryan, Karen, Jouan, Emmanuelle, Zuj, Kathryn, Gauquelin-Koch, Guillemette, Custaud, Marc-Antoine, Gharib, Claude

“…Most astronauts experience back pain after spaceflight, primarily located in the lumbar region. Intervertebral disc herniations have been observed after real…”
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Superficial femoral artery blood flow with intermittent pneumatic compression of the lower leg applied during walking exercise and recovery by Zuj, Kathryn A, Prince, Chekema N, Hughson, Richard L, Peterson, Sean D

“…The purpose of this study was to determine if muscle blood flow during walking exercise and postexercise recovery can be augmented through the application of…”
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Cerebrovascular autoregulation: lessons learned from spaceflight research by Blaber, Andrew P., Zuj, Kathryn A., Goswami, Nandu

“…This review summarizes our current understanding of cerebral blood flow regulation with exposure to microgravity, outlines potential mechanisms associated with…”
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Ultrasound assessments of organs and blood vessels before and after 40 days isolation in a cavern (deep time experiment 2021) by Arbeille, Philippe, Zuj, Kathryn A, Besnard, Stephane, Mauvieux, Benoit, Hingrand, Corentin, Delaunay, Pierre-Louis, Hughson, Richard L, Clot, Christian

“…Spaceflight simulation studies like confinement in small volume habitat with limited physical activity have reported even after 60 days an abnormal arterial…”
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Haemodynamic and cerebrovascular effects of intermittent lower‐leg compression as countermeasure to orthostatic stress by Gibbons, Travis D., Zuj, Kathryn A., Prince, Chekema N., Kingston, David C., Peterson, Sean D., Hughson, Richard L.

“…New Findings What is the central question of this study? Does smartly timed intermittent compression of the lower legs alter cerebral blood velocity and…”
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Comparison of pulse contour, aortic Doppler ultrasound and bioelectrical impedance estimates of stroke volume during rapid changes in blood pressure by Gibbons, Travis D., Zuj, Kathryn A., Peterson, Sean D., Hughson, Richard L.

“…New Findings What is the central question of this study? Pulse contour analysis of the finger arterial pressure by Windkessel modelling is commonly used to…”
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Continuous forearm cooling attenuates gastrointestinal temperature increase during cycling by Hedge, Eric T., Zuj, Kathryn A., Stothart, Alexander G., Gavel, Erica H., Goodman, Len S., Buckrell, Andrew J.M., Peterson, Sean D.

“…Hot environmental conditions can challenge thermoregulation resulting in exacerbated heat strain. This study evaluated the influence of continuous inner…”
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Altered Venous Function during Long-Duration Spaceflights by Fortrat, Jacques-Olivier, de Holanda, Ana, Zuj, Kathryn, Gauquelin-Koch, Guillemette, Gharib, Claude

“…Venous adaptation to microgravity, associated with cardiovascular deconditioning, may contribute to orthostatic intolerance following spaceflight. The aim of…”
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Reply to Pancheva, Panchev, and Pancheva by Zuj, Kathryn A, Hughson, Richard L

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5-Day Bed Rest: Portal and Lower Limb Veins With and Without Artificial Gravity Countermeasures by Provost, Romain M, Zuj, Kathryn A, Arbeille, Philippe

“…The objective of the study was to evaluate the effect of short-term, head-down bed rest (HDBR), with and without artificial gravity countermeasures, on…”
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WISE-2005: adrenergic responses of women following 56-days, 6 degrees head-down bed rest with or without exercise countermeasures by Edgell, Heather, Zuj, Kathryn A, Greaves, Danielle K, Shoemaker, J Kevin, Custaud, Marc-Antoine, Kerbeci, Pascaline, Arbeille, Phillipe, Hughson, Richard L

“…We tested the hypotheses that women completing 56 days, 6 degrees head-down bed-rest (HDBR) would have changes in sensitivity of cardiovascular responses to…”
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WISE‐2005: prolongation of left ventricular pre‐ejection period with 56 days head‐down bed rest in women by Hodges, Gary J., Mattar, Louis, Zuj, Kathryn A., Greaves, Danielle K., Arbeille, Phillipe M., Hughson, Richard L., Shoemaker, J. Kevin

“…This study tested the hypothesis that prolonged physical deconditioning affects the coupling of left ventricular depolarization to its ejection (the…”
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Carotid and Femoral Artery Intima-Media Thickness During 6 Months of Spaceflight by Arbeille, Philippe, Provost, Romain, Zuj, Kathryn

“…The objective was to determine the effects of 6 mo of microgravity exposure on conduit artery diameter and wall thickness. Diagnostic images of the common…”
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A 3D volume capture for ultrasound assessment of various organs and vessels by novice operators by Arbeille, Philippe, Guillon, Laurent, Zuj, Kathryn, Besnard, Stephane, Clot, Christian

“…The quality of ultrasound images is dependent on operator skill level. Therefore, an automated system is required for situations, such as spaceflight, where a…”
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Remote Echography between a Ground Control Center and the International Space Station Using a Tele-operated Echograph with Motorized Probe by Arbeille, Philippe, Chaput, Didier, Zuj, Kathryn, Depriester, Arielle, Maillet, Alain, Belbis, Olivier, Benarroche, Patrice, Barde, Sebastien

“…Echography is the most appropriate imaging modality for investigating astronauts. Unfortunately, it requires a great deal of training to perform ultrasound…”
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Teles-operated Echocardiography Using a Robotic Arm and an Internet Connection by Arbeille, Philippe, Provost, Romain, Zuj, Kathryn, Dimouro, Dominique, Georgescu, Monica

“…Abstract The objective was to design and validate a method of tele-operated echocardiography. The method was tested in a hospital facility with an expert…”
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Jugular and Portal Vein Volume, Middle Cerebral Vein Velocity, and Intracranial Pressure in Dry Immersion by Arbeille, Philippe, Avan, Paul, Treffel, Loïc, Zuj, Kathryn, Normand, Herve, Denise, Pierre

“…The objective was to determine if short term exposure to dry immersion (DI) results in a cephalic fluid shift similar to what has been observed with…”
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Continuous Forearm Cooling Attenuates Increase in Core Body Temperature of Elite Cyclists under Heat Stress: 530 Board #4 May 29 1:00 PM - 3:00 PM by Hedge, Eric T., Zuj, Kathryn A., Stothart, Alexander G., Gavel, Erica H., Goodman, Len S., Peterson, Sean D.

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