Physiology Commons^™

Cardiac Vagal Dysfunction And Ventricular Arrhythmogenesis In Type 2 Diabetes Mellitus After Myocardial Infarction, Dongze Zhang

Theses & Dissertations

Diabetes is the eighth leading cause of death in the United States. Every eight seconds a person dies from diabetes around the world. Among various types of diabetes, type 2 diabetes mellitus (T2DM) is the most common form, representing 90% to 95% of all diabetes populations. The leading cause of mortality and morbidity in T2DM patients is cardiovascular disease, among which acute myocardial infarction (MI)-induced ventricular arrhythmia is the major cause of death in T2DM. Patients with T2DM are two to four times more likely to die from MI than non-diabetic patients. Although well-known therapies including better glycemic control have …

Silla De Ruedas Para La Práctica Del Rugby, Diana Yaquelin Barrero Malagón, Jonathan Steven Vargas Cañón

Documentos de Trabajo CTeI

El rugby en silla de ruedas, como una opción de promoción de la actividad física para personas con discapacidades físicas, se convierte en un área de investigación de gran interés. Esta disciplina se aborda desde una perspectiva de salud, alentando la prevención de comorbilidades en esta población. Simultáneamente, se considera un enfoque deportivo que requiere estrategias para mejorar el desempeño atlético de los participantes.

En este contexto, esta propuesta se basa en un objetivo a corto plazo, que implica caracterizar el estado inicial de salud y realizar un análisis biomecánico del rendimiento deportivo en esta población. Luego, a largo plazo, …

Hypothalamic Manipulation Of The Anuran Hpg Axis: Alternative Hormones And A Non-Invasive Administration Route For Amphibian Assisted Reproductive Technologies (Art), Erin Michelle Saylor

Theses and Dissertations

Amidst the amphibian extinction crisis, in situ and ex situ amphibian species conservation initiatives utilize assisted reproductive technologies for optimal genetic management of captive and wild populations. Development of effective, simple, low-cost methods for obtaining gametes for artificial fertilization, sperm biobanking, or natural breeding alleviates obstacles for institutions or programs to apply reproductive technologies. Objectives herein include investigating the efficacy of alternative hormones for inducing spermiation, an alternative hormone administration route for inducing ovulation, exploring the physiological effects of hormone therapy, and utilizing sperm from deceased animals for biobanking.

Physical Characteristics, Movement Pattern And Heart Rate Response Of Indian Cricketers During Batting In Twenty20 (T20) Matches, Subhashis Biswas, Rupayan Bhattacharya, Arnab Das

International Journal of Exercise Science

International Journal of Exercise Science 16(6): 1413-1425, 2023. The study aims to provide a morphological profile of Indian cricketers and find physiological demands and positional differences of the batsmen in T20 matches according to their batting order. Eighty-three male cricketers (age: 17.93 ± 2.23 years) participated in this study and categorized into upper-order (n = 36), middle-order (n = 35) and lower-order (n = 12) batsmen. Height, weight, body fat%, and somatotype were measured. Movement analysis and heart rate (HR) responses were recorded during batting in T20 matches using PolarV800 smart-watch and H7 HR sensor. Descriptive statistics, …

Health Care Providers’ Experiences With Integrated Care Services Needed To Treat Patients With Type 3 Compared To Type 2 Diabetes, Sharon Hope Jaycox

Walden Dissertations and Doctoral Studies

No abstract provided.

Comparison Of Muscle Activity During A Ring Muscle Up And A Bar Muscle Up, Cody W. Walker, Adam J. Bruenger, W. Steven Tucker, Hyung Rock Lee

International Journal of Exercise Science

International Journal of Exercise Science 16(1): 1451-1460, 2023. The muscle up (MU) is a variation of a common gymnastics movement that combines a pull up and a dip. It can be performed on a bar (BMU) or a set of rings (RMU). The difference in upper extremity muscle recruitment (MR) between BMU and RMU has not been evaluated. Therefore, the purpose of this study was to compare the MR of select muscles during BMU and RMU. Ten active males (27.6 ± 7.9 years) performed 5 repetitions of BMU and RMU in randomized order. Muscle recruitment of the upper (UT) and …

The Physiological Effects Of Acute And Ramp Hypoxic Exposure During Simulated Flight Tasks, Jasmin Renee Jenkins

Open Access Theses & Dissertations

The purpose of the present study was to examine the effects of hypoxia at simulated altitudes of FiO2 15.4% (8000’ equivalent), FiO2 13.2% (12,000’ equivalent), and a Ramp Hypoxic exposure on perceived workload, cardiovascular activity, electrodermal activity, oximetry, and flight simulator performance. A total of 17 participants (10 female & 7 males; mean ± SEM, age 24.82±1.6 yrs, BMI 25.87±1.0 who were apparently healthy, asymptomatic, and physically active performed 3 flight tasks using a video game head-mounted display (HMD) flight simulator while exposed to simulated altitudes of Normoxia, FiO2 15.4%, FiO2 13.2% and a Ramp Hypoxic Exposure (breathing at 8,000 …

The Effect Of Step Rate Training On Running Economy And Biomechanics, Nahir Negron-Fernandez

All NMU Master's Theses

It is known that running economy is a determinant of running performance. Increased step rate has been correlated with improved running economy, but it is unknown whether these improvements can be maintained with chronic training. The purpose of this study was to determine if a step rate training intervention improves running economy and improves lower body kinetic factors in distance runners. Nine participants were randomly assigned to either an intervention group (n = 7) undergoing a 6-week supplemental training program, or a non-training control group (n = 2). The intervention group trained three times a week, running at a higher …

Effects Of Short-Term Pesticides Exposure On Swimming Behavior, Tissue Morphology, Oxidative-Nitrative Stress, Antioxidant Expression, And Cellular Apoptosis In Kidneys Of Goldfish, Esmirna Cantú

Theses and Dissertations

The prevalence of pesticides in the aquatic environment continues to increase due to anthropogenic activities and poses a threat to aquatic organisms. The aim of this study was to determine the short-term exposure (one-week) of pesticide mixtures (metolachlor, linuron, isoproturon, tebucanazole, alconifen, atrazine, pendimethalin; azinphos-methyl) on swimming behaviors, kidney morphology, and expression of nitrotyrosine protein (NTP), dinitrophenyl protein (DNP), superoxide dismutase (SOD), catalase (CAT), renin, and cellular apoptosis in goldfish (Carassius auratus). Results indicated that both low- and high-dose pesticide mixtures decreased the distance swimming behavior. Histological analysis showed pesticide exposure alters kidney morphology. DNP, NTP, and renin expressions, and …

The Many Side Jobs Of Lateral Suppressor (Ls) In Plant Development, Janlo M. Robil

Biology Faculty Publications

No abstract provided.

Unlocking The Mysteries Of Opportunism: Neuroendocrine Insights From An Aseasonal Breeder (Taeniopygia Guttata), Jessica A. Moodie

Graduate Theses and Dissertations (2019 - present)

The regulation of reproductive physiology in animals is mediated by the Hypothalamus-Pituitary-Gonad (HPG) axis. In seasonal breeders, a conserved reciprocal switching of deiodinase enzymes alters thyroid hormone signaling, which controls HPG activity. This study tested the hypothesis that neural regulation of the HPG axis as described in seasonal systems is conserved and repurposed to respond to other cues in aseasonal species. Using water deprivation and nest restriction in the opportunistic Zebra Finch, we were able to create a breeding group and non-breeding group, confirmed by egg laying and changes in ovarian anatomy. Breeding females had clear follicular hierarchy, increased ovary …

Law Library Blog (December 2023): Legal Beagle's Blog Archive, Roger Williams University School Of Law

Law Library Newsletters/Blog

No abstract provided.

Physiological And Biomechanical Response To Indoor Cycling With And Without The Ability To Sway, Alina P. Swafford

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction: Bicycles have been around since the early 19th century. Since the invention of the bicycle, it has taken on several purposes. People have used bicycles as a means of transportation, leisure, exercise, and sport. The number of individuals who participate in a cycling event per year has increased. With the increase in popularity, research related to cycling has also increased. Research related to the physiology and biomechanics of cycling are of particular areas of interest. Balance is a crucial component of understanding why we cycle a certain way. Some research has labeled balancing on a bicycle as cycling sway. …

Effects Of Aging On Post-Exercise Oxygen Consumption: A Preliminary Study, Steven Klepacz

Health, Exercise, and Sports Sciences ETDs

Aging and excess post-exercise oxygen consumption (EPOC) is something that has not been adequately studied. Studies looking at EPOC mostly are compiled of young college age individuals. Aging in humans is a topic of much research with still more to be learned. The study in this paper attempts to answer the question of whether age affects EPOC when performing a certain exercise. Preliminary findings based on general age-related research suggest the possibility. This thesis will explore the current research related to age and EPOC, analyze the findings, and discuss additional avenues for future research.

Assessing The Validity Of Several Heart Rate Monitors In Wearable Technology While Mountain Biking, Bryson Carrier, Robert W. Salatto, Dustin W. Davis, Jacquelyn Sertic, Brenna Barrios, Graham R. Mcginnis, Tedd Girouard, Benjamin E. Burroughs, James W. Navalta

International Journal of Exercise Science

International Journal of Exercise Science 16(7): 1440-1450, 2023. Purpose: This study sought to assess the validity of several heart rate (HR) monitors in wearable technology during mountain biking (MTB), compared to the Polar H7® HR monitor, used as the criterion device. Methods: A total of 20 participants completed two MTB trials while wearing six HR monitors (5 test devices, 1 criterion). HR was recorded on a second-by-second basis for all devices analyzed. After data processing, validity measures were calculated, including 1. error analysis: mean absolute percentage errors (MAPE), mean absolute error (MAE), and mean error (ME), and 2. Correlation analysis: …

The Effect Of Topical Cannabidiol On The Progression Rate Of Delayed Onset Muscle Soreness, Anastasia Alpy, George Yusuff, Michele Aquino, John Petrizzo, Robert M. Otto, John Wygand, Troy Simpson

International Journal of Exercise Science

International Journal of Exercise Science 16(3): 1426-1439, 2023. This study investigated the efficacy of topical cannabidiol (CBD) ointment in reducing localized inflammation, minimizing performance detriments, and attenuating soreness associated with delayed onset muscle soreness (DOMS). In a double blind randomized control trial, upper-arm circumferences, maximal voluntary isometric contractions (MVICs) for elbow flexion at 90° and 30° for college-aged participants (n = 21, age 20.8 ± 1.9 years) were assessed at baseline. Participants then performed a DOMS-inducing protocol for the biceps brachii. Topical CBD ointment and placebo (P) ointment were randomly assigned and applied 30 minutes, 24, 48 and 72 …

Prediction Of Maximum Lactate Concentration During An All-Out Anaerobic Test In Elite Ice Hockey Players, Maxime Allisse, Hung Tien Bui, Patrick Desjardins, Philippe Roy, Alain Steve Comtois, Mario Leone

International Journal of Exercise Science

International Journal of Exercise Science 16(4) 1385-1397, 2023. The lack of specific on-ice tests to predict maximum lactate concentration limits the ability of coaches to better track and develop their ice hockey players. Thus, this study aimed to develop an equation for indirectly assessing the maximum lactate concentration produced from an all-out on-ice skating effort in elite adolescent ice hockey players. Twenty elite male ice hockey players participated in this study (age = 15.7 ± 1.0 year). The lactate anaerobic skating test (LAST) consisted of skating back and forth on an 18.2 m course at maximal speed with abrupt stops …

The Effects Of Pre-Exercise Ice-Slurry Ingestion On Thermoregulation And Exercise Performance Of Highly Trained Athletes: A Scoping Review, Gopathi Pranita Ms., Keren Susan Cherian [email protected], Kommi Kalpana Dr

International Journal of Exercise Science

International Journal of Exercise Science 16(2): 1398-1412, 2023. Ice-slurry prepared from plain ice, crushed ice, or sports drink has been used as a cooling strategy before exercise to regulate body temperature and improve exercise performance. However, consensus regarding the benefit is unclear. Therefore, the present review aimed to study the effects of pre-exercise ice-slurry ingestion on thermoregulation and exercise performance of highly trained athletes. The Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) checklist was used. The data extraction was done using the search engine Google Scholar, and digital repositories such as Cochrane, Scopus, Medline, …

Enteroendocrine Cell Regulation Of The Gut-Brain Axis, Joshua Barton, Annie Londregan, Tyler Alexander, Ariana Entezari, Manuel Covarrubias, Scott Waldman

Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers

Enteroendocrine cells (EECs) are an essential interface between the gut and brain that communicate signals about nutrients, pain, and even information from our microbiome. EECs are hormone-producing cells expressed throughout the gastrointestinal epithelium and have been leveraged by pharmaceuticals like semaglutide (Ozempic, Wegovy), terzepatide (Mounjaro), and retatrutide (Phase 2) for diabetes and weight control, and linaclotide (Linzess) to treat irritable bowel syndrome (IBS) and visceral pain. This review focuses on role of intestinal EECs to communicate signals from the gut lumen to the brain. Canonically, EECs communicate information about the intestinal environment through a variety of hormones, dividing EECs into …

The Acute Impacts Of Resistance Training Performed With And Without Blood Flow Restriction On Lower Body Muscular Power, Justin Faller, Brian Thompson, Stephen Ives

International Journal of Exercise Science

International Journal of Exercise Science 16(6): 1320-1333, 2023. The American College of Sports Medicine recommends resistance training using at least 70% one repetition maximum to improve muscular strength and hypertrophy; however, these intensities may not be safe for all populations. A training technique that has been reported to elicit increases in strength and muscle size uses low intensity resistance training or low load training in combination with blood flow restriction (BFR) to the working muscle. Although the acute effects of BFR on muscle strength and size are well established, the effects of BFR on muscular power are not definitively known. …