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Articles 1 - 3 of 3
Full-Text Articles in Respiratory System
Pulmonary Imaging To Better Understand Asthma, Sarah Svenningsen
Pulmonary Imaging To Better Understand Asthma, Sarah Svenningsen
Electronic Thesis and Dissertation Repository
Asthma is characterized using the spirometry measurement of the forced expiratory volume in one second (FEV1). Simple and inexpensive, FEV1 provides a global estimate of lung function but this metric cannot regionally identify airways responsible for airflow limitation, asthma symptoms or control. Work that brought about an understanding that airway abnormalities are heterogeneously distributed within the lung in asthma patients has motivated the development of pulmonary imaging approaches, such as hyperpolarized helium-3 (3He) and xenon-129 (129Xe) magnetic resonance imaging (MRI). These methods provide a way to visualize and quantify lung regions accessed by …
The Effects Of A Four-Week Whole-Body High-Intensity Training Program On Female Athletes 2015, Lindsey Taylor
The Effects Of A Four-Week Whole-Body High-Intensity Training Program On Female Athletes 2015, Lindsey Taylor
Master's Theses
Purpose: The purpose of this study was to examine the aerobic benefits and changes in running economy (RE) following a fourweek whole-body high-intensity interval training (HIIT) program on an athletic female population. Participants: Fourteen female student-athletes volunteered to participate in the study. Design: Participants reported on two occasions for VO2max and RE testing and were divided into two training groups based upon baseline VO2max: Endurance (END; n=6) and HIIT (n=8). Participants completed 12 total training sessions. During each session, END completed 30 minutes of vigorous-intensity running, while HIIT completed a total of four minutes of whole-body intervals. Measures: Maximal oxygen …
Non-Invasive Quantification Of Alveolar Morphometry Measurements In Older Never-Smokers, Gregory A. Paulin
Non-Invasive Quantification Of Alveolar Morphometry Measurements In Older Never-Smokers, Gregory A. Paulin
Electronic Thesis and Dissertation Repository
Diffusion-weighted noble gas pulmonary magnetic resonance imaging (MRI) provides in vivo images with a contrast uniquely sensitive to molecular displacement at cellular and sub-cellular length scales. We estimated the external airway radius (R) and internal airway radius (r) of the alveolar dimensions to evaluate potential differences in acinar duct morphometries in healthy older never-smokers and compared those with a group of ex-smokers. The acinar duct and alveolar MRI morphometry results were within the physiologically-valid range of parameters. Estimated values of internal (r) and external (R) airway radius as well as alveolar sheath (h) and …