Bruce D. Johnson

Impact of TLR3 Activation on Endothelial Functions: Insights into iNOS- Dependent Mechanisms

Junchul Shin, Junyoung Hong, Soon‐Gook Hong, Jinkyung Cho et autres

kr, us (code pays fourni par la source)

Evaluation of lung function and airway impedance in response to ultra-marathon

Kelsey E. Joyce, Courtney M. Wheatley, Jesse C. Schwartz, Glenn M. Stewart et autres

Introduction Ultra-marathon races present a prolonged cardiopulmonary physiological stress but the magnitude, persistence, and impact of race environment on respiratory function are incompletely understood. The aim of this study is to observe the effect of ultra-marathon trail races on both lung function …

us, gb, au, fr (code pays fourni par la source)

Influence of brief carbon dioxide inhalation on acute exercise performance and recovery: A pilot study

Dongwook Yeo, Jesse C. Schwartz, Bruce D. Johnson, Chul‐Ho Kim

Abstract Brief inhalation of carbon dioxide (CO 2 ) has been proposed to counteract transient hypocapnia by enhancing oxygen unloading, vasodilation, and sympathetic modulation. Despite these potential ergogenic mechanisms, CO 2 has rarely been investigated in the exercise context. The present study …

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Abstract 4364521: The Predictive Capabilities of Exhaled Volatile Organic Compounds on Heart Failure Status: A Pilot Study

Soumya Vungarala, Robert J. Wentz, Briana Ziegler, Chul‐Ho Kim et autres

Background: Exhaled volatile organic compounds (VOCs) can provide insight into various physiological and metabolic processes. Aim: The purpose of this study was to determine if exhaled VOCs would differ across disease severity in heart failure (HF) patients. Methods: We recruited 62 individuals …

us, gb (code pays fourni par la source)

Long-term influences of participation in an earth education program in middle school

Bruce D. Johnson, Nancy Bires, Sanlyn Buxner

This is a retrospective study of the long-term influences of participation in the Sunship Earth program. Participants were 288 adults who had participated in the residential Sunship Earth program as 6th graders and 103 adults from the same community who had not. …

us (code pays fourni par la source)

Quantification of Lung Water by Thoracic CT in Heart Failure Patients

Soumya Vungarala, Robert J. Wentz, Lyle J. Olson, Bruce D. Johnson

Abstract Rationale: Heart failure (HF) is often characterized by elevated left ventricular filling pressures (LVFP) and pulmonary congestion. However, LVFP may not always predict congestion. Pulmonary congestion can be quantified by computed tomography (CT) imaging. We hypothesized that extravascular lung water quantified …

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Novel Correlations Between Exhaled Breath Volatile Organic Compounds (VOCs) and Lung Function in Ultramarathon Runners: Insights from the 2019 Ultra-Trail du Month Blanc

Helen M. S. Davies, Hung‐Hsueh Chou, Amy Craster, Keith Arthur et autres

Abstract Rationale: Volatile organic compounds (VOCs) in exhaled breath change significantly after ultramarathons and could help monitor athletes’ physiological status to optimize training. While VOCs can reflect metabolic changes, the connection between VOCs and clinical blood and respiratory data remains unknown. In …

gb, us, fr (code pays fourni par la source)

Aerosol Generation During Spirometry and Simulated Bronchodilator Challenge Testing in the Pulmonary Function Laboratory

Cameron G. Gmehlin, Pavol Sajgalik, Matthew E Hainy, Chul‐Ho Kim et autres

us (code pays fourni par la source)

Positive pressure ventilation improves oxygen saturation at altitude during recreational aviation: A pilot study

Jenna L. Taylor, Aidan K. Downs, Crystal L. Danner, John B. Downs et autres

Abstract Aim We investigated whether a commercial bi‐level positive airway pressure (BPAP) device, would improve peripheral oxygen saturation (SpO2) during recreational aviation up to 12,500 feet without supplemental oxygen. Ten adults with recreational flight experience (age:47 ± 14; female = 5) completed …

us, au (code pays fourni par la source)

Behind Armour Blunt Trauma Lung Injury Risk Curves from Different Backface Deformation Profiles

Narayan Yoganandan, Ashish S. Shah, Jared Koser, Lewis Somberg et autres

us (code pays fourni par la source)

A Wireless, Wearable Ultrasound for Assessing Left Ventricular Assist Device Hemodynamics: A Case Series

Jon‐Émile S. Kenny, Christine Horner, Mai Elfarnawany, Zhen Yang et autres

Abstract Optimizing left ventricular assist device (LVAD)–patient interaction is important. This is typically accomplished via an outpatient ramp test, monitored by echocardiography and/or invasive measures. We have developed a wireless, wearable Doppler ultrasound that we hypothesized would detect relatively small (i.e., ± …

ca, us (code pays fourni par la source)

Safety implications of mask use: a systematic review and evidence map

Wigdan Farah, Bashar Hasan, Elizabeth H. Lees, Farah Fleti et autres

BACKGROUND: Widespread use of respiratory protection masks has become a critical component of public health response. OBJECTIVES: This systematic review synthesises the evidence on the acute physiological, cognitive and psychological impacts associated with different types of masks and provides an evidence map …

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