Search Results - "Petersen, Lonnie"

Effect of gravity and microgravity on intracranial pressure by Lawley, Justin S., Petersen, Lonnie G., Howden, Erin J., Sarma, Satyam, Cornwell, William K., Zhang, Rong, Whitworth, Louis A., Williams, Michael A., Levine, Benjamin D.

“…Key Points Astronauts have recently been discovered to have impaired vision, with a presentation that resembles syndromes of elevated intracranial pressure on…”
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Maintained exercise‐enhanced brain executive function related to cerebral lactate metabolism in men by Hashimoto, Takeshi, Tsukamoto, Hayato, Takenaka, Saki, Olesen, Niels D., Petersen, Lonnie G., Sørensen, Henrik, Nielsen, Henning B., Secher, Niels H., Ogoh, Shigehiko

“…High‐intensity interval exercise (HIIE) improves cerebral executive function (EF), but the improvement in EF is attenuated after reρeated HIIE, perhaρs because…”
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Studies of Hydrocephalus Associated With Long-term Spaceflight May Provide New Insights Into Cerebrospinal Fluid Flow Dynamics Here on Earth by Roberts, Donna R, Petersen, Lonnie G

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Single ventilator for multiple patients during COVID19 surge: matching and balancing patients by Petersen, Lonnie G, Friend, James, Merritt, Sidney

“…Keywords: COVID-19, Patient surge, Mechanical ventilation, Sharing a ventilator…”
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Transcutaneous vagal nerve stimulation during lower body negative pressure by Petersen, Johan Casper Grove, Becker, Rachel, Petersen, Lonnie G.

“…Para-sympathetic vagal activation has profound influence on heart rate and other cardiovascular parameters. We tested the hypothesis that transcutaneous Vagal…”
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Effect of postural changes on ICP in healthy and ill subjects by Andresen, Morten, Hadi, Amer, Petersen, Lonnie G., Juhler, Marianne

“…Background Reference values and physiological measurements of intracranial pressure (ICP) are primarily reported in the supine position, while reports of ICP…”
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Lower body negative pressure to safely reduce intracranial pressure by Petersen, Lonnie G., Lawley, Justin S., Lilja‐Cyron, Alexander, Petersen, Johan C. G., Howden, Erin J., Sarma, Satyam, Cornwell, William K., Zhang, Rong, Whitworth, Louis A., Williams, Michael A., Juhler, Marianne, Levine, Benjamin D.

“…Key points During long‐term missions, some astronauts experience structural and functional changes of the eyes and brain which resemble signs/symptoms…”
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Going against the flow: are venous thromboembolism and impaired cerebral drainage critical risks for spaceflight? by Harris, Katie M, Weber, Tobias, Greaves, Danielle, Green, David Andrew, Goswami, Nandu, Petersen, Lonnie G

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Circulating Plasma Oxytocin Level Is Elevated by High-Intensity Interval Exercise in Men by Tsukamoto, Hayato, Olesen, Niels D, Petersen, Lonnie G, Suga, Tadashi, Sørensen, Henrik, Nielsen, Henning B, Ogoh, Shigehiko, Secher, Niels H, Hashimoto, Takeshi

“…We evaluated whether repeated high-intensity interval exercise (HIIE) influences plasma oxytocin (OT) concentration in healthy men, and, given that OT is…”
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Lumbar puncture position influences intracranial pressure by Pedersen, Sarah H., Andresen, Morten, Lilja-Cyron, Alexander, Petersen, Lonnie G., Juhler, Marianne

“…Background The standard lumbar puncture position involves maximum flexion of both lumbar and cervical spine. The cerebrospinal fluid opening pressure (CSF op )…”
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Gravitational effects on intracranial pressure and blood flow regulation in young men: a potential shunting role for the external carotid artery by Ogoh, Shigehiko, Washio, Takuro, Paton, Julian F R, Fisher, James P, Petersen, Lonnie G

“…We sought to determine whether gravity-induced changes in intracranial pressure influence cerebral blood flow regulation. Accordingly, nine young healthy men…”
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Editorial: Rising stars in environmental, aviation and space physiology: 2022 by Saveko, Alina, Liphardt, Anna-Maria, Washio, Takuro, Petersen, Lonnie G, Custaud, Marc-Antoine

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Corrigendum: Editorial: Rising stars in environmental, aviation and space physiology: 2022 by Saveko, Alina, Washio, Takuro, Petersen, Lonnie G, Custaud, Marc-Antoine, Liphardt, Anna-Maria

“…[This corrects the article DOI: 10.3389/fphys.2023.1230752.]…”
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Graded lower body negative pressure induces intraventricular negative pressures and incremental diastolic suction: a pressure volume study in a porcine model by Berboth, Leonhard, Zirngast, Birgit, Manninger, Martin, Steendijk, Paul, Tschöpe, Carsten, Scherr, Daniel, Hinghofer-Szalkay, Helmut G, Goswami, Nandu, Petersen, Lonnie G, Mächler, Heinrich, Alogna, Alessio

“…Lower body negative pressure (LBNP) has been a tool to study compensatory mechanisms to central hypovolemia for decades. However, underlying hemodynamic…”
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Characterization of internal jugular vein region-specific distension and flow patterns during progressive volume shifting by Cohen, Jeremy N, Hedge, Eric T, Greaves, Danielle K, Robertson, Andrew D, Nahas, Hassan, Yu, Alfred C H, Petersen, Lonnie G, Au, Jason S

“…Blood volume shifts during postural adjustment lead to irregular distension of the internal jugular vein (IJV). In microgravity, distension may contribute to…”
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Gravity, intracranial pressure, and cerebral autoregulation by Petersen, Lonnie G., Ogoh, Shigehiko

“…Manipulating gravitational stress may affect cerebral autoregulation. These effects can help increase our understanding of the integrative cardiovascular‐ and…”
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Dynamic Cerebral Autoregulation Is Maintained during High-Intensity Interval Exercise by TSUKAMOTO, HAYATO, HASHIMOTO, TAKESHI, OLESEN, NIELS D, PETERSEN, LONNIE G, SØRENSEN, HENRIK, NIELSEN, HENNING B, SECHER, NIELS H, OGOH, SHIGEHIKO

“…INTRODUCTIONHigh-intensity interval exercise (HIIE) is more effective at increasing metabolic and cardiovascular health compared with moderate-intensity…”
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Reviving lower body negative pressure as a countermeasure to prevent pathological vascular and ocular changes in microgravity by Harris, Katie M., Petersen, Lonnie G., Weber, Tobias

“…Mitigation of spaceflight-related pathologies such as spaceflight-associated neuro-ocular syndrome (SANS) and the recently discovered risk of venous thrombosis…”
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Gravitational effects on intraocular pressure and ocular perfusion pressure by Petersen, Lonnie G, Whittle, Richard S, Lee, Justin H, Sieker, Jeremy, Carlson, Joseph, Finke, Colton, Shelton, Cody M, Petersen, Johan C G, Diaz-Artiles, Ana

“…Changes in the gravitational vector by postural changes or weightlessness induce fluid shifts, impacting ocular hemodynamics and regional pressures. This…”
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Search for Venous Endothelial Biomarkers Heralding Venous Thromboembolism in Space: A Qualitative Systematic Review of Terrestrial Studies by Harris, Katie, Laws, Jonathan Michael, Elias, Antoine, Green, David Andrew, Goswami, Nandu, Jordan, Jens, Kamine, Tovy Haber, Mazzolai, Lucia, Petersen, Lonnie G, Winnard, Andrew James, Weber, Tobias

“…The recent discovery of a venous thrombosis in the internal jugular vein of an astronaut has highlighted the need to predict the risk of venous thromboembolism…”
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