Increasing The Incidence Of Type 2 Diabetes In Ucd-T2dm Female Rats,
2025
The University of Texas at Austin
Increasing The Incidence Of Type 2 Diabetes In Ucd-T2dm Female Rats, Chandni Bhagtaney, Austin Thornton, Milena Samora, Ali Mossayebi, Kimber L. Stanhope, Peter J. Havel D.V.M., Ph.D., Audrey J. Stone, Michelle L. Harrison
International Journal of Exercise Science: Conference Proceedings
The prevalence of type 2 diabetes mellitus (T2DM) is higher for men compared with women, yet women present with a greater risk factor burden at the time of their diagnosis. Currently, research is lacking that addresses these sex-specific differences in disease onset and progression, research that is critical to understanding the pathophysiology of diabetes and developing optimal treatment strategies for both women and men. These same sex differences are present in animal models of T2DM. The paucity of suitable T2DM animal models is a barrier to investigations of these sex differences. The University of California Davis (UCD)-T2DM rat model, bred …
Voluntary Wheel Running Improves Glucose Homeostasis And Visceral Adiposity In Old Mice,
2025
University of Texas at Arlington
Voluntary Wheel Running Improves Glucose Homeostasis And Visceral Adiposity In Old Mice, Alexandra Canizales, David J. Buckley, Sogol Zahedi, Daniel W. Trott
International Journal of Exercise Science: Conference Proceedings
Age is an independent risk factor for the development of type 2 diabetes, which is characterized in part by impaired glucose homeostasis, greater body weight and visceral adiposity. In older humans, exercise has been demonstrated to be a viable modality to improve these aforementioned outcomes. Surprisingly, to date, no one has assessed whether exercise improves glucose tolerance in old mice. Further the mechanism(s) of improvement in old animals independent of overt obesity is not well understood. PURPOSE: The purpose of this study was to determine whether 8 weeks of voluntary wheel running would result in improved glucose tolerance and …
Training Load Differences Between Position And Set In Ncaa D1 Collegiate Women’S Volleyball Match,
2025
Texas Tech University
Training Load Differences Between Position And Set In Ncaa D1 Collegiate Women’S Volleyball Match, Alexandra P. Brojanac, David Clark, Katie Munger, Yasuki Sekiguchi
International Journal of Exercise Science: Conference Proceedings
PURPOSE: This study investigated the training load differences between positions and sets in NCAA DI collegiate women’s volleyball matches. METHODS: Training load data from twenty NCAA D1 collegiate women’s volleyball players (mean±SD; age, 20±1y; height, 185.4±3.3cm; weight, 77.2±8.2kg) were monitored during all matches throughout the season where players donned an accelerometer-based player tracking device. Training loads included energy, %Hard-landing (when landing force was >15G), Jump 15+ (Jumps>15 inches), average jump height, and total number of jumps. Players’ positions were classified either in middle blocker (MB), outside hitter (OH), and setter, and sets consisted of Set1, Set2, Set3, Set4, and …
Comparison Of Two Independent Measures Of Anaerobic Capacity In Women And Men,
2025
University of North Texas
Comparison Of Two Independent Measures Of Anaerobic Capacity In Women And Men, Brady C. Mclain, Austin B. Shaw, Ethan J. Hein, Claudio A. Gobatto, Marcelo Papoti, Fúlvia De Barros Manchado-Gobatto, David W. Hill, Madison B. Landtiser, Jacob L. Mcnary, Sarah E. Deemer, Lydia K. Caldwell
International Journal of Exercise Science: Conference Proceedings
Maximal accumulated oxygen deficit (MAOD) is the gold standard measure to evaluate anaerobic capacity. An alternative to MAOD is ‘MAOD_alt’, which is based on post-exercise measures. While MAOD requires multiple tests to evaluate anaerobic capacity, MAOD_alt requires a single exhaustive test. PURPOSE: The purpose of this study was to determine if MAOD_alt is a valid measure of anaerobic capacity in women and men during cycling[BM2] ergometer exercise. METHODS: Seven women (age 24 ± 3 y, height 166 ± 9 cm, weight 64 ± 13 kg) and nine men (22 ± 2 y, 185 ± 9 cm, 74 ± 10 …
The Slow Component Of The Vo2 Response Is Explained By The Increase In Glycolytic Contribution,
2025
university of north texas
The Slow Component Of The Vo2 Response Is Explained By The Increase In Glycolytic Contribution, Austin Shaw, Ethan J. Hein, Jacob L. Mcnary, Brady C. Mclain, David W. Hill, Madison B. Landtiser, Lydia K. Caldwell, Sarah E. Deemer
International Journal of Exercise Science: Conference Proceedings
During severe intensity exercise, energy contribution from glycolysis leads to accumulation of intracellular H+ in the working muscles. This acidification results in decreased efficiency in the excitation-contraction coupling mechanism in the muscle cells, which decreases force production. Some studies have suggested that additional, progressive recruitment of glycolytic (type II) muscle fibers may be needed to maintain force production in constant power exercise which causes an increase in oxygen uptake over time (the VO2 slow component) after ~3 minutes. PURPOSE: The purpose of this study was to determine if the amplitude of the VO2 slow component is related …
Effects Of Vaping Nicotine And Thc On Respiratory Oxidative Stress And Pulmonary Function,
2025
Lamar University
Effects Of Vaping Nicotine And Thc On Respiratory Oxidative Stress And Pulmonary Function, Kayla Mckinley, Shannon Jordan, Nikhil Patel, Alan D. Moore
International Journal of Exercise Science: Conference Proceedings
E-cigarettes cause thermal degradation of liquid bases producing an inhaled vapor (“vaping”). Evidence suggests compounds produced during vaping, as well as the vaporized substance itself, cause lung damage and oxidative stress. Oxidative stress can be quantified through analysis of F2-8-isoprostanes, reactive species that initiate lipid peroxidation of arachidonic acid. PURPOSE: To compare non-vaping controls (C) to vapers (V) to determine if respiratory oxidative stress and/or reduced lung function is associated with young healthy people who vape. METHODS: Individuals aged 18-30 were recruited. Participants who vape were asked to identify if they vape only nicotine, only THC, or both as well …
Angiotensin Ii Induced Hypertension Induces Dna Damage Associated Gene Expression In Visceral Adipose,
2025
University of Texas in Arlington
Angiotensin Ii Induced Hypertension Induces Dna Damage Associated Gene Expression In Visceral Adipose, Nathan Cuellar, Sogol Zahedi, David J. Buckley, Daniel W. Trott
International Journal of Exercise Science: Conference Proceedings
Advanced age remains the most important risk factor for the development of cardiovascular disease. Aging is also the major risk factor for hypertension and is associated with chronic inflammation and senescent cell accumulation. Cellular senescence, a state of irreversible cell cycle arrest, is characterized by cell cycle arrest and the secretion of inflammatory mediators known as the senescence-associated secretory phenotype (SASP). Senescent cells have been demonstrated to accumulate in the adipose tissue of old mice. Although cellular senescence plays a role in age-related vascular dysfunction, it is unknown whether hypertension can induce cellular senescence independent of age. PURPOSE: This study …
Estimation Of Constant Power Cycle Ergometer Work Rates Using Responses In Incremental Exercise Tests,
2025
University of North Texas
Estimation Of Constant Power Cycle Ergometer Work Rates Using Responses In Incremental Exercise Tests, Ethan Hein, Sarah Deemer, Lydia K. Caldwell, Brady Mclain, Jacob Mcnary, Austin Shaw, David W. Hill
International Journal of Exercise Science: Conference Proceedings
The severe exercise intensity domain is defined as the range of work rates that is sustainable for ~2 to 30 minutes and will elicit maximal oxygen uptake (VO2max). Laboratory controlled study designs often require a more stringent timeframe (e.g. 10 - 14 minutes) for achieving VO2max, making selection of individualized work rates a challenging task. PURPOSE: This study aimed to develop a regression equation to predict cycle ergometer work rates that would elicit VO2max and result in fatigue in ~12min (W12min). METHODS: Three women (mean ± SD, age, 23 ± 4 y; height, 168 ± 13 cm; body mass, 69 …
Increases In Knee Extension Muscle Activation But Not Peak Torque Following High Intensity Training,
2025
University of Tarleton, Stephenville
Increases In Knee Extension Muscle Activation But Not Peak Torque Following High Intensity Training, Adriana Alonso Gomez, Sierra M. Washignton, Annalee G. Krahn, Sarah N. Fambro, Andrew J. West, Andru N. Botello, Adam C. Avalos, Andrew A. Wolfe, Michael J. Luera
International Journal of Exercise Science: Conference Proceedings
Autoregulatory progressive resistance exercise (APRE) modulates training intensity in response to individual performance to optimize increases in muscular strength. Muscular activation patterns during maximal torque production can provide additional insight to increased strength following an APRE training intervention. PURPOSE: The purpose of this study was to examine the effects of a 4-week APRE training program on peak torque and muscle activation in the vastus lateralis (VL) during maximal voluntary isokinetic knee extension. METHODS: Eight resistance trained males (age: 21.5 ± 2.3yrs; height: 176.5 ± 6.8cm; weight: 70.3 ± 17.8kg) participated in upper- and lower-body APRE 4-times per week for 4-weeks. …
Effects Of Autoregulatory Progressive Resistance Exercise On Upper-Body Rate Of Force Development And Cross-Sectional Area,
2025
Tarleton State University
Effects Of Autoregulatory Progressive Resistance Exercise On Upper-Body Rate Of Force Development And Cross-Sectional Area, Andru N. Botello, Sierra M. Washington, Annalee G. Krahn, Andrew J. West, Dylan J. Harty, Jenaya V. Brown, Mason A. Crews, Sarah N. Fambro, Adriana Alonso Gomez, Andrew A. Wolfe, Micheal J. Luera
International Journal of Exercise Science: Conference Proceedings
Rate of force development (RFD) is used to measure explosive strength during a rapid contraction of a muscle action and is also important for athletes who prioritize explosiveness and quickness. Reports indicate autoregulatory progressive resistance exercise (APRE) yields greater physical performance adaptations than traditional linear periodization models. PURPOSE: The purpose of this study was to compare isometric bench press RFD and skeletal muscle cross-sectional area (CSA) of the triceps longhead following 4-weeks of an APRE training program. METHODS: Eight resistance trained males (age: 21.5 ± 2.3yrs; height: 176.5 ± 6.8cm; weight: 70.3 ± 17.8kg) participated in a 4-week …
The Relationship Between Traditional Performance Measures Countermovement Jump Testing In Youth Female Soccer Athletes,
2025
Rice University
The Relationship Between Traditional Performance Measures Countermovement Jump Testing In Youth Female Soccer Athletes, Samiha Momin, Haley Goble, Roxanne Miller, Shari Liberman, Bradley Lambert
International Journal of Exercise Science: Conference Proceedings
Jump testing using electronic force plates has gained interest in sport and rehabilitation settings for evaluating performance and recovery across all levels, from youth to professional. While these devices produce extensive data on jump metrics, little information exists on how they relate to traditional sport performance measures used in athletic or therapy settings for youth athletes. PURPOSE: Examine the relationship between countermovement jump (CMJ) testing measures assessed via the VALD ForceDecks Lite® force plate system and common sport performance tests associated with lower extremity strength, power, agility, and injury risk in elite youth soccer athletes. METHODS: All procedures for …
Comparison Of Ncaa D1 Women’S Basketball Game Day And Previous Practice Training Loads,
2025
Texas Tech University
Comparison Of Ncaa D1 Women’S Basketball Game Day And Previous Practice Training Loads, Kyle Jean, Karissa A. Mesquita, David Clark, Yasuki Sekiguchi
International Journal of Exercise Science: Conference Proceedings
Game day training loads in NCAA Division I Women’s Basketball players differ significantly from practice loads, emphasizing the intense physical demands of competition. Analyzing these variations is crucial for optimizing training strategies, balancing workload, and enhancing recovery. PURPOSE: Examining the game day and the previous week training load before each game in NCAA D1 Women’s Basketball players. METHODS: Eleven females (Age: 22±2years, Height: 183.41±8.92cm, Weight: 84.62±18.78kg) NCAA D1 Women’s Basketball players donned accelerometer units for games and practices from October 2023 through March 2024. Variables collected by the units include Total Distance, Duration, Accumulated Acceleration Load, High Speed …
Effect Of Sodium Glucose Cotransporter 2 Inhibition On Exercise Hyperemia In Older Adults,
2025
University of North Texas Health Science Center, Fort Worth, Texas
Effect Of Sodium Glucose Cotransporter 2 Inhibition On Exercise Hyperemia In Older Adults, Harrison A. Peyrovi, Steven A. Romero, Johnathan D. Tune, Ysabella Ruiz-Pick, Asim Kichloo, Gregory M. Dick, Brenda L. Gilliland
International Journal of Exercise Science: Conference Proceedings
Skeletal muscle blood flow is attenuated in older adults performing dynamic exercise which is due, in part, to impaired local vasodilatory mechanisms. Recent preclinical and clinical studies have shown that sodium-glucose cotransporter 2 (SGLT2) inhibitors improve vasodilator function at rest. However, the extent to which this improvement extends to exercise is unknown. PURPOSE: To test the hypothesis that compared with placebo, short-term administration of an SGLT2 inhibitor will increase skeletal muscle blood flow in older adults performing unilateral plantar flexion exercise via increased vascular conductance. METHODS: We utilized a randomized, single-blind, placebo-controlled crossover design. Four older adults (3 women; age …
Co-Existence Of St-Segment Depression And Exaggerated Systolic Blood Pressure Response In Older Runners,
2025
The University of Texas at Austin
Co-Existence Of St-Segment Depression And Exaggerated Systolic Blood Pressure Response In Older Runners, Kazumasa Manabe, Owen N. Beck, Justus Ortega, Hirofumi Tanaka
International Journal of Exercise Science: Conference Proceedings
Regular exercise is known to confer substantial benefits for cardiovascular health. However, long-distance runners with abnormal exercise electrocardiography like ST-segment depression have been reported to show a higher prevalence of exercise-induced hypertension, which may link to future cardiovascular events. In recent years, the recommendation to screen and assess cardiovascular risks has extended to various populations including chronically active and seemingly healthy older athletes. PURPOSE: In the retrospective analysis of a previous research study to evaluate walking economy in older adults, we observed a fairly high occurrence of both ST segment depression and peak systolic BP in older endurance-trained athletes. …
Non-Linear Relationship Between Mental Toughness And Anxiety In Ncaa Athletes: Unexpected Mid-Range Vulnerability,
2025
University of Louisville
Non-Linear Relationship Between Mental Toughness And Anxiety In Ncaa Athletes: Unexpected Mid-Range Vulnerability, Gabriel Rollins, Ernest Rimer, Xavier Smith, Nathan Wells, Brett Hayes, Jennifer Daily, Christopher Peters, Andreas Stamatis
International Journal of Exercise Science: Conference Proceedings
Elite athletes often experience various anxiety symptoms and disorders that, if left untreated, can negatively impact their mental well-being, psychological functioning, and athletic performance. While mental toughness (MT) is generally viewed as advantageous in terms of mental health (MH) outcomes, previous research has suggested that excessively high MT levels may lead to maladaptive behaviors, such as ignoring injuries or delaying help-seeking, which can exacerbate MH challenges. Lately, official organizations (e.g., NCAA) have emphasized the need for structured and regular MH screening (e.g., anxiety) of elite athletes. PURPOSE: To investigate the relationship between MT and anxiety in NCAA student-athletes, specifically …
Vascular Responses During Steady-State Exercise In Adults With Type 1 Diabetes,
2025
The University of Texas at Austin
Vascular Responses During Steady-State Exercise In Adults With Type 1 Diabetes, Ruby A. Nyarko, Ashlesha D. Dalve, Justo Perez Iii, Pratima V. Kumar, Jasdeep Kaur
International Journal of Exercise Science: Conference Proceedings
Type 1 diabetes (T1D) is associated with widespread hyperglycemia-induced vascular damage, which affects both conduit and resistance arteries. This damage has been demonstrated by impaired vasodilatory responses to a 5-minute ischemic stimulus (flow-mediated dilation) and infusion of pharmacological vasodilators in patients with T1D. However, whether this vascular impairment affects blood flow regulation during steady-state exercise in T1D remains unclear. PURPOSE: Herein, we tested the hypothesis that adults with T1D would exhibit blunted forearm blood flow (FBF) and forearm vascular conductance (FVC) during steady-state rhythmic handgrip exercise (RHG), compared to age-matched healthy controls. METHODS: We studied 27 adults (15 …
Examining The Relationship Of E-Cigarette Vapor Exposure And Exercise Performance In Aerobically Trained Rats,
2025
Southwestern University
Examining The Relationship Of E-Cigarette Vapor Exposure And Exercise Performance In Aerobically Trained Rats, Miranda N. Farrar, Nancy Morales
International Journal of Exercise Science: Conference Proceedings
Electronic cigarettes, or e-cigarettes, are alternatives to traditional cigarettes and they are rapidly growing in popularity. These electronic nicotine delivery systems heat up nicotine and vehicle liquids to deliver nicotine to the user via vapor rather than smoke. Although they are touted as a “healthier” alternative to smoking, vape use is associated with changes in heart rate and blood pressure, increased lung inflammation, and reduced mucociliary clearance. Such physiological changes may have an effect on exercise performance and athletic ability. PURPOSE: This study’s purpose was twofold: to train rats to successfully run on a treadmill, and to evaluate the …
Low-Energy Cooling Strategies To Mitigate Thermal Strain Of Older Adults Exposed To Very Hot-Dry Heat,
2025
Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas
Low-Energy Cooling Strategies To Mitigate Thermal Strain Of Older Adults Exposed To Very Hot-Dry Heat, Isa A. Farooqi, Zachary J. Mckenna, Whitley C. Atkins, Elizabeth A. Gideon, Craig G. Crandall
International Journal of Exercise Science: Conference Proceedings
Extreme heat causes morbidity and mortality, particularly among older adults. Although air conditioning can mitigate heat strain, it may be inaccessible due to limited resources, high costs, or power outages. Consequently, cooling strategies other than air-conditioning are needed to mitigate excessive elevations in core temperature and cardiovascular strain in this population. While electric fans offer a low-cost and widely available intervention, their effectiveness in very hot conditions is minimized due to potential increases in heat gain and dehydration. In contrast, skin wetting is a promising low-cost and energy-free cooling strategy that enhances evaporative heat loss. PURPOSE: We tested the hypotheses …
Reliability Of Handgrip Strength Measurements And Their Relationship With Physical Performance Outcomes In Older Women,
2025
Texas Tech University
Reliability Of Handgrip Strength Measurements And Their Relationship With Physical Performance Outcomes In Older Women, Alexandra Khartabil, Ty B. Palmer
International Journal of Exercise Science: Conference Proceedings
Handgrip strength measurements, such as peak force and rate of force development (RFD), are effective parameters at characterizing the strength capacities of numerous muscle groups in the upper and lower extremities. Previous studies have determined the reliability of handgrip peak force and RFD in young, college-aged adults. However, the reliability of these measurements in older adults remains unclear. It is also unclear if these measurements are associated with performance during sit-to-stand and medicine ball throw tests. PURPOSE: The primary aim of this study was to examine the reliability of handgrip peak force and RFD measurements in older women. A secondary …
Music Enhances Motor Cortex Excitability In Physically Active Individuals,
2025
Texas State University, San Marcos
Music Enhances Motor Cortex Excitability In Physically Active Individuals, Anupama Thapa, Ana Carolina Panhan, Erin Lally, Joosung Kim
International Journal of Exercise Science: Conference Proceedings
Music is often used by exercisers and benefits physical performance. The positive effects of music on physical function are induced by the changes in motor cortex excitability while listening to music. Recent studies reveal that modulation of brain excitability in the hand is increased by music but is likely dependent on the characteristics of music tempo, preference, and the individual’s motivational state. No study has explicitly investigated whether music perceived as motivating for exercise creates changes in motor cortex excitability of the quadriceps. PURPOSE: This randomized crossover study examines the effect of the preferred music on motor cortex excitability …
