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Articles 1 - 11 of 11
Full-Text Articles in Physiology
The Physiological Effects Of Acute And Ramp Hypoxic Exposure During Simulated Flight Tasks, Jasmin Renee Jenkins
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 …
Acute Effects Of Neuromuscular Electrical Stimulation On Blood Glucose And Energy Metabolism In Overweight/Obese Population, Ali Mossayebi
Acute Effects Of Neuromuscular Electrical Stimulation On Blood Glucose And Energy Metabolism In Overweight/Obese Population, Ali Mossayebi
Open Access Theses & Dissertations
Background: In the perspective of preventing cardiovascular disease and promoting health, weight control and physical activity are the main concerns. Electrical stimulation (ES) is an alternate strategy to induce muscle contraction, using electrical impulses. However, effectiveness of ES induced muscle contraction to improve energy expenditure and glucose metabolism is not well examined.Purpose: To determine the acute effect of ES on whole body energy expenditure and body glucose metabolism in sedentary overweight or obese population Methods: Sedentary overweight/obese participants (n=8; age: 37.25 ± 6.09 years; BMI= 37.57 ± 2.43 kg/m2) were included in this study. All participants received bilateral quadriceps ES …
Effects Of Different Stretching Modalities On The Antagonist And Agonist Muscles On Isokinetic Strength And Vertical Jump Performance, Samuel Montalvo
Effects Of Different Stretching Modalities On The Antagonist And Agonist Muscles On Isokinetic Strength And Vertical Jump Performance, Samuel Montalvo
Open Access Theses & Dissertations
Warm-ups are essential components of all training sessions, sports, and physical activities. Warm-ups are typically composed of a variety of stretches. Two stretching modalities that are commonly performed before any physical activity are the static and dynamic stretching modalities. Historically, static stretching has been used as a preferred stretching modality during the warm-up period. However, research indicates that static stretching â?? if done prior to the training session â?? may inhibit the expression of muscular strength, muscular activation, and vertical jump height. On the contrary, dynamic stretching has been shown to improve the expression of muscular strength, muscular activation, and …
The Associations Between Socioeconomic Status And Childhood And Adult Psychosocial Experiences Among Men Living In El Paso, Texas, Sophia Marie Ornelas
The Associations Between Socioeconomic Status And Childhood And Adult Psychosocial Experiences Among Men Living In El Paso, Texas, Sophia Marie Ornelas
Open Access Theses & Dissertations
BACKGROUND: Substantial evidence indicates that low levels of Socioeconomic Status (SES) can have adverse psychosocial health implications in early childhood that can persist into adulthood. While there is extensive research about this relationship very little is known about the relationship between SES characteristics and adult psychosocial burden among Hispanic men. OBJECTIVE: This research aims to explore the associations between SES characteristics and childhood adverse experiences, adult perceived stress burden, and depressive symptoms among Hispanic men living in El Paso, Texas. METHODS: This research used data from a cross-sectional study of 100 adult men residing in El Paso, Texas in 2018. …
Early Detection Of Asthma Via Enhanced Resolution Of Small Airways Using Ultra-Low Frequency Impulse Oscillometry, Christopher M. Aguilar
Early Detection Of Asthma Via Enhanced Resolution Of Small Airways Using Ultra-Low Frequency Impulse Oscillometry, Christopher M. Aguilar
Open Access Theses & Dissertations
Examination of lung function for diagnosis and monitoring of diseases such as chronic obstructive pulmonary disease (COPD) and asthma can be performed with a variety of pulmonary function testing (PFT) techniques. The most commonly prescribed of these procedures are spirometry and whole-body plethysmography. However, these active participation tests depend on forced breathing maneuvers, may be physically exhausting, might not produce enough information, and are susceptible to being subject-dependent. In contrast, passive PFT approaches such as the forced oscillation technique (FOT) and the impulse oscillometry system (IOS) are increasingly being utilized for measuring lung mechanics because they require only minimal participation, …
Does A Family History Of Type 2 Diabetes Affect Exercise Induced Improvements In Insulin Sensitivity, Metabolic Flexibility, And Myokine Expression In Mexican-American Males?, Manuel Amador
Open Access Theses & Dissertations
A family history of diabetes (FH+) is considered a risk factor for the development of insulin resistance and type 2 diabetes. However, it is not known whether exercise induced improvement in insulin sensitivity (IS) and metabolic flexibility (MF) are impacted by a FH+. Purpose: To determine if a FH+ limits exercise induced improvements in Insulin sensitivity, MF, body composition, and strength following an 8-week combined aerobic and resistance training intervention compared to those without a family history of diabetes (FH-). Methods: 19 (FH- n=9, age 21.89 ± 0.60 years, BMI 27.51 ± 1.68 kg/m2; FH+ n=10, age 23.41 ± 0.86 …
Development Of A Yeast-Based Assay For The Functional Characterization Of Fkbp52/ Î?-Catenin Interactions With The Androgen Receptor, Theresa Anne Rodriguez
Development Of A Yeast-Based Assay For The Functional Characterization Of Fkbp52/ Î?-Catenin Interactions With The Androgen Receptor, Theresa Anne Rodriguez
Open Access Theses & Dissertations
Prostate cancer development is uniquely dependent on the androgen receptorâ??s (ARâ??s) transcriptional regulation in response to hormone binding. Current therapies directly target AR acting as an antagonist at androgen binding sites. However, once androgen-dependence is lost, meaning the patient has progressed into a late-stage hormone resistant phenotype, all current treatments are essentially ineffective. Utilizing the yeast strain Saccharomyces cerevisiae we are capable of creating a model system that allows for the exogenous expression of AR while still retaining the chaperone components needed for this steroid receptor complex. The 52kDa FK506 binding protein (FKBP52) has been shown to be an important …
Restraint Stress Alters Pro-Inflammatory Cytokine Expression And Increases Superoxide Dismutase In The Rat Hypothalamus And Hippocampus, Kristina Isabel Barron
Restraint Stress Alters Pro-Inflammatory Cytokine Expression And Increases Superoxide Dismutase In The Rat Hypothalamus And Hippocampus, Kristina Isabel Barron
Open Access Theses & Dissertations
The impact of restraint stress on changes in cytokine expression and oxidative stress markers in hippocampal (Hipp) and hypothalamic (Hyp) regions of the brain, were assessed in a rat model. In addition, immune and inflammatory variables were assessed in peripheral blood. Male Wistar rats were acutely (30 min) or repeatedly (30 min/d for 14 consecutive days) exposed to a restraint stress, or maintained as non-stressed controls. At the time of sacrifice, whole blood and brain tissues enriched in Hyp or Hipp regions were collected; blood was collected with EDTA as an anticoagulant and centrifuged to yield plasma. All tissue samples …
Effects Of Electrical Pulse Stimulation On In Vitro Measurement Of Mitochondrial Content And Lipid In Human Myotubes, Daniel Alberto Conde
Effects Of Electrical Pulse Stimulation On In Vitro Measurement Of Mitochondrial Content And Lipid In Human Myotubes, Daniel Alberto Conde
Open Access Theses & Dissertations
It has been previously shown that human myotubes retain certain in vivo characteristics of the donors. Furthermore, we have shown that Electrical pulse stimulation (EPS), an in vitro exercise mimetic, increases mitochondrial and lipid content in cultured human myotubes after 24 hr. of stimulation. Purpose: We aimed to examine the EPS induced adaptations to lipid, mitochondrial, and Glucose transporter 4 (GLUT4) content using human myotubes. Methods: EPS was applied to myotubes for 60 min (bipolar pulses of 100 Hz, 30V, every 5 seconds), 24 hr. or 48 hr. (single bipolar pulses of 1 Hz for 2 ms; 30V) and were …
Validating The Nike+ Wireless Sport Kit For Estimating Pace, Distance, And Energy Expenditure During Treadmill Walking And Running, Derek Joseph Acosta
Validating The Nike+ Wireless Sport Kit For Estimating Pace, Distance, And Energy Expenditure During Treadmill Walking And Running, Derek Joseph Acosta
Open Access Theses & Dissertations
The use of accelerometry based physical activity monitors among recreational athletes to meet or exceed recommended physical activity guidelines has grown in popularity. In the interest of capitalizing on this demand, Adidas developed the miCoach Pacer System which allows the user to observe pace, distance, and energy expenditure during walking or running. Purpose. To validate the accuracy of the Adidas miCoach activity monitor in estimating energy expenditure (EE) (kcal/min), pace (min/km), and distance (km) during treadmill walking and running, and for two different sensor configurations. Methods. Nine male and 9 female moderately endurance trained volunteers (mean ± SD age: 28.83 …
A Specific Regulatory Role For Sgtα On The Maturation And Activation Of Steroid Hormone Receptors, Atanu Paul
A Specific Regulatory Role For Sgtα On The Maturation And Activation Of Steroid Hormone Receptors, Atanu Paul
Open Access Theses & Dissertations
Steroid hormone receptors (SHRs) are ligand-dependent transcription factors belonging to the nuclear receptor superfamily. These receptors regulate various physiological functions in higher ordered eukaryotes. In the absence of hormone these receptors form a complex with molecular chaperones such as Hsp90 and Hsp70 and other cochaperones in the cytoplasm. Association with the Hsp90-Hsp70 chaperone machinery leads to the maturation of the Ligand Binding Domain (LBD) of the receptors and enables the receptors to bind hormone with high affinity. Upon binding with a specific hormone the receptors are translocated into the nucleus where they initiate transcription of specific genes. Although the involvement …