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Articles 17611 - 17640 of 382368

Full-Text Articles in Education

Axe Throwing Correlation Between The Elbow And Shoulder Velocity At Time Of Release And Other Measures Of Accuracy, Katherine M. Mcclellan, Amber M. Chelette, Jeremy Stovall Feb 2025

Axe Throwing Correlation Between The Elbow And Shoulder Velocity At Time Of Release And Other Measures Of Accuracy, Katherine M. Mcclellan, Amber M. Chelette, Jeremy Stovall

International Journal of Exercise Science: Conference Proceedings

INTRODUCTION. This exploratory investigation examines the biomechanical correlations underlying axe throwing accuracy among amateur throwers, due to the fact that there is limited literature on upper extremity kinematics across wrist, elbow, and shoulder velocities affecting the handle, angle, and distance accuracy of the axe during time of release. PURPOSE. The purpose was to systematically examine the biomechanical factors influencing throwing precision across athletic populations, utilizing research methodologies to map the intricate relationships between kinematic variables and performance accuracy. METHODS. Utilizing Awinda inertial measurement units, researchers analyzed upper extremity kinematics across wrist, elbow, and shoulder velocities during twelve …

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An Adjustment To Estimating Body Fat Percentage With Bodpod In A Hispanic Population, Maria Quezada, Yuliana Sanchez-Trinidad, Kassandra Reyes, Emmanuel Franco, Aylin Barrera, Allison De La Vina, Samuel R. Buchanan Feb 2025

An Adjustment To Estimating Body Fat Percentage With Bodpod In A Hispanic Population, Maria Quezada, Yuliana Sanchez-Trinidad, Kassandra Reyes, Emmanuel Franco, Aylin Barrera, Allison De La Vina, Samuel R. Buchanan

International Journal of Exercise Science: Conference Proceedings

New equations for estimating body fat percentage are continually being developed for more accurate population-based results. PURPOSE: This study aimed to generate a novel two-compartment model equation for air displacement plethysmography to estimate body fat percentage (PBF) in a Hispanic population. METHODS: 43 adults, aged 18+, were assessed for total body composition using a four-compartment model (4C) with bone mineral content from a Lunar iDXA (GE Healthcare, Madison WI), total body water via the InBody 770 (InBody, Seoul, South Korea), and ADP from a BodPod GS-X (COSMED, Rome, Italy). Participants were instructed to arrive hydrated, with manufacturer suggested clothing, …

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Unveiling The Limitations Of Continuous Glucose Monitoring: Insights From Fasting And Ogtt With Advanced Clustering Analyses, Dwaipayan Saha Dr, Preyangsee Dutta Dr., Jehu Narh Apaflo, Joshua Labadah, Zahra Fatahimeiabadi, Ulices Villalobos, Irene John Tomy, Sudip Bajpeyi Dr. Feb 2025

Unveiling The Limitations Of Continuous Glucose Monitoring: Insights From Fasting And Ogtt With Advanced Clustering Analyses, Dwaipayan Saha Dr, Preyangsee Dutta Dr., Jehu Narh Apaflo, Joshua Labadah, Zahra Fatahimeiabadi, Ulices Villalobos, Irene John Tomy, Sudip Bajpeyi Dr.

International Journal of Exercise Science: Conference Proceedings

Continuous glucose monitoring (CGM) systems offer real-time glucose insights but are limited by temporal lags and variability compared to capillary blood glucose (CBG) and venous blood measurements. These limitations are particularly pronounced during fasting and oral glucose tolerance tests (OGTT), where accurate glucose tracking is critical. However, gaps remain in understanding how CGM performance compares to traditional methods in capturing glucose trends, variability, and clinical outliers. PURPOSE: This study addresses these gaps by evaluating the accuracy, variability, and clustering efficiency of CGM compared to CBG and venous glucose measurements during fasting and OGTT. METHODS: A cohort of 26 participants underwent …

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Associations Of Skeletal Muscle Index, Body Mass Index, And Body Fat In A Primarily Hispanic Population, Kassandra Reyes, Emmanuel Franco, Maria Quezada, Yuliana Sanchez-Trinidad, Aylin Barrera, Allison De La Vina, Samuel R. Buchanan Feb 2025

Associations Of Skeletal Muscle Index, Body Mass Index, And Body Fat In A Primarily Hispanic Population, Kassandra Reyes, Emmanuel Franco, Maria Quezada, Yuliana Sanchez-Trinidad, Aylin Barrera, Allison De La Vina, Samuel R. Buchanan

International Journal of Exercise Science: Conference Proceedings

Despite criticism of body mass index (BMI) in the classification of weight status, it is still a commonly used metric. BMI may still serve a purpose in the identification of low muscle status. PURPOSE: This study associated skeletal muscle index (SMI), BMI, and body fat percentage (PBF) in a population of mostly Hispanic individuals. METHODS: 47 adults, aged 18+, were assessed for total body composition using a four-compartment model (4C) with bone mineral content from a Lunar iDXA (GE Healthcare, Madison WI), total body water via the InBody 770 (InBody, Seoul, South Korea), and ADP from a BodPod GS-X …

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Extraction And Organization Of Densitometry Data From Imaging Reports Produced By The Ge Idxa System Using Optical Character Recognition, Ana S. Rivera, Jordan Ankersen, Bradley Lambert Feb 2025

Extraction And Organization Of Densitometry Data From Imaging Reports Produced By The Ge Idxa System Using Optical Character Recognition, Ana S. Rivera, Jordan Ankersen, Bradley Lambert

International Journal of Exercise Science: Conference Proceedings

Assessment of body composition and bone mineral density via dual-energy X-ray absorptiometry (DXA) is commonly used in sports medicine, orthopedic, wellness, and research settings, whereby individualized reports are generated that can be uploaded to individual patient charts or entered into datasets for the purpose of analyzing trends or differences between population groups or within groups over time as a result of monitoring or interventions (nutritional, pharmacologic, therapeutic, activity). However, for large sample sizes, manual data entry from individual reports can be cumbersome and subject to human error. Exporting raw data directly from the DXA machine also presents challenges. PURPOSE: To …

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The Role Of The Exerkine Apelin In Age-Related Sarcopenia, Dillon R. Harris, Quinten W. Pigg, Daniela S. Inoue, Mariana Janini Gomes Feb 2025

The Role Of The Exerkine Apelin In Age-Related Sarcopenia, Dillon R. Harris, Quinten W. Pigg, Daniela S. Inoue, Mariana Janini Gomes

International Journal of Exercise Science: Conference Proceedings

Apelin is an exercise-induced peptide that declines with age and is positively associated with exercise-induced benefits in older individuals. This molecule may therein have a potential role in combatting sarcopenia—age-related progressive loss of muscle mass and strength—when combined with exercise; however, the molecular mechanisms behind its autocrine function remain unclear. PURPOSE: To investigate how aerobic exercise impacts skeletal muscle apelin signaling, focusing on its potential in counteracting the age-related loss of skeletal muscle. METHODS: 22 Fisher 344 male rats (3- and 21-month-old) were obtained from NIA rodent colonies. Experimental groups were randomly divided: young sedentary (Y, n=5); young …

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Acute Vs. Chronic Response To Doxorubicin Treatment With Endurance Training In Non-Tumor-Bearing Rats, Quinten W. Pigg, Dillon Harris, Daniela Sayuri Inoue, Bertha F. Polegato, Carol R. Tonon, Mariana Janini Gomes Feb 2025

Acute Vs. Chronic Response To Doxorubicin Treatment With Endurance Training In Non-Tumor-Bearing Rats, Quinten W. Pigg, Dillon Harris, Daniela Sayuri Inoue, Bertha F. Polegato, Carol R. Tonon, Mariana Janini Gomes

International Journal of Exercise Science: Conference Proceedings

Doxorubicin (DOX) is a chemotherapy agent widely used to treat many types of cancer; however, DOX use is limited due to its adverse effects. While cardiotoxicity is the most well-recognized issue, skeletal muscle wasting and weakness is another significant adverse effect that can decrease quality of life, manifested clinically through weakness and exercise intolerance. PURPOSE: We aimed to investigate the effects of DOX treatment on exercise intolerance and muscle function in preclinical models of both acute and chronic effects of chemotherapy using non-tumor-bearing rats. We also investigated the preventive and therapeutic effects of endurance training in these models. METHODS: …

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Visceral Adipose Tissue – A Comparative Analysis Of Dxa And Bioelectrical Impedance Analysis, Emmanuel Franco, Maria Quezada, Yuliana Sanchez-Trinidad, Kassandra Reyes, Aylin Barrera, Allison De La Vina Feb 2025

Visceral Adipose Tissue – A Comparative Analysis Of Dxa And Bioelectrical Impedance Analysis, Emmanuel Franco, Maria Quezada, Yuliana Sanchez-Trinidad, Kassandra Reyes, Aylin Barrera, Allison De La Vina

International Journal of Exercise Science: Conference Proceedings

Visceral adipose tissue (VAT), defined as the abdominal fat surrounding intraabdominal organs including the stomach, kidneys, and intestines, can be directly linked to the development of metabolic syndrome and increased mortality. CT and MRI are currently regarded as the most reliable modalities for estimating VAT area, however bioelectrical impedance analysis (BIA) and dual-energy X-ray absorptiometry (DXA) have emerged as more convenient and cost-friendly alternatives for obtaining VAT and other body composition values. PURPOSE: This study compared VAT areas gathered via DXA and BIA in a population of mostly Hispanic individuals, to assess the reliability and association of both modalities to …

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The Influence Of Balance And Strength Training On Gait Symmetry In An Individual With Spastic Quadriplegic Cerebral Palsy, Madison Deitch, Vanessa Mikan Phd, Taylor Dean Feb 2025

The Influence Of Balance And Strength Training On Gait Symmetry In An Individual With Spastic Quadriplegic Cerebral Palsy, Madison Deitch, Vanessa Mikan Phd, Taylor Dean

International Journal of Exercise Science: Conference Proceedings

Cerebral palsy (CP) is a neurodevelopmental disorder that affects muscle tone, movement, and motor skills. Individuals with CP often experience challenges related to balance and postural control, which can affect their ability to perform functional tasks. Individuals with Spastic Quadriplegic CP (SQCP) have difficulty in maintaining balance and symmetrical weight distribution. Structured exercise programs incorporating balance training and strength exercises have been found to be effective in improving postural control and balance in children with CP. PURPOSE: This study aimed to evaluate the influence of balance and strength exercises on gait measures in a young adult with SQCP. METHODS: The …

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Position-Specific Insights Into Weekly Training Load Variability In Soccer Athletes, Tyler B. Mccollum, Alexandra Brojanac, Erica Hollis, Jan-Joseph S. Rolloque, Yasuki Sekiguchi Feb 2025

Position-Specific Insights Into Weekly Training Load Variability In Soccer Athletes, Tyler B. Mccollum, Alexandra Brojanac, Erica Hollis, Jan-Joseph S. Rolloque, Yasuki Sekiguchi

International Journal of Exercise Science: Conference Proceedings

Monitoring training load (TL) is vital for optimizing athletic performance and reducing risk of injury by identifying changes in a player's condition and workload. However, there is limited literature comparing player positions and analyzing weekly workloads in relation to internal and external load metrics. PURPOSE: (1) Compare accumulated load and training monotony in external and internal load metrics between the first (1H) and second halves (2H) of the season; (2) analyze variations in these indicators by playing positions. METHODS: 38 semi-professional players (age: 23±2.05 years; height: 186.61±44.88 cm; weight: 77.23±10.29 kg) playing in 5 positions (central defender (CD=5), …

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The Effect Of An Upper Body Warm Up Versus Passive Swim On 100 Meter Freestyle Times, William P. Celis Feb 2025

The Effect Of An Upper Body Warm Up Versus Passive Swim On 100 Meter Freestyle Times, William P. Celis

International Journal of Exercise Science: Conference Proceedings

Warming up before an athletic event is vital for ideal performance and injury prevention. However, the ideal type of warm-up is often debated. In swimming, previous research has demonstrated that in-water warm-ups generally provide better results compared to on-land warm-ups Yet, limited studies have directly compared the effects of land-based versus in-water warm-ups on swimming performance. PURPOSE: Therefore, the purpose of this study was to examine the effects of a 5-minute passive in-water warm-up versus a 5-minute dynamic land-based warm-up on 100-meter freestyle swim times. METHODS: Participants included 31 individuals (25 men and 6 women), 9 of whom …

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Added Psychological Stress Significantly Increases Anxiety But Does Not Impact Stress Biomarkers In Response To Combined Mental And Physical Stress, Nathan M. Sutton, Stephanie Uriegas, Hunter Martaindale, Matthew J. Mcallister Feb 2025

Added Psychological Stress Significantly Increases Anxiety But Does Not Impact Stress Biomarkers In Response To Combined Mental And Physical Stress, Nathan M. Sutton, Stephanie Uriegas, Hunter Martaindale, Matthew J. Mcallister

International Journal of Exercise Science: Conference Proceedings

High Stress occupations are subject to significant health risk due to the exposure to a variety of stressors, specifically the exposure to concurrent stressors (i.e., combined mental and physical stress). Exposure to concurrent stressors has been shown to exacerbate the stress response, potentially resulting in cardiovascular strain, immune suppression, and inflammation. PURPOSE: The purpose of this study was to examine the effect of a concurrent stress challenge (CSC) on markers of stress, as well as perceived anxiety. METHODS: This study utilized a randomized control trial, in which fifty-four subjects (n=54) were randomly assigned to perform either exercise alone …

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Sleep Duration And Sleep Quality As Season-Long Predictors Of Ratings Of Perceived Exertion And Psychological Wellbeing In Female Soccer Athletes, Maria E. Camargo M.S., Kelly M. Cheever Phd Feb 2025

Sleep Duration And Sleep Quality As Season-Long Predictors Of Ratings Of Perceived Exertion And Psychological Wellbeing In Female Soccer Athletes, Maria E. Camargo M.S., Kelly M. Cheever Phd

International Journal of Exercise Science: Conference Proceedings

Sleep is a critical factor in optimizing athletic performance and well-being. Sleep effects on physiological and psychological well-being have been examined through cross sectional studies, but limited research exists on the longitudinal impact that sleep has on well-being in collegiate athletes. PURPOSE: The purpose of this study was to explore daily fluctuations in subjective measures of psychological wellness and physiological stress (soreness, rating of perceived exertion (RPE)) across a competitive soccer season, and to examine the extent to which sleep duration and quality modify daily measures of wellness and stress in collegiate female soccer athletes. METHODS: Twenty female …

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Impact Of An Outdoor Physical Activity Intervention On Muscular Fitness In Adolescents, Khizra Khan, Joni A. Mettler, L. Kent Griffin, Lindsay E. Kipp Feb 2025

Impact Of An Outdoor Physical Activity Intervention On Muscular Fitness In Adolescents, Khizra Khan, Joni A. Mettler, L. Kent Griffin, Lindsay E. Kipp

International Journal of Exercise Science: Conference Proceedings

Physical inactivity among adolescents is a growing health concern. Innovative, engaging interventions are needed, such as after-school programs to promote physical activity and improve youths’ health, including muscular fitness. PURPOSE: The purpose was to evaluate the impact of an outdoor physical activity intervention on muscle strength, muscle endurance, and agility in middle school students. METHODS: The intervention included various physical activities (e.g., kayaking, orienteering/hiking, archery, disc golf, mountain biking), across 10 sessions over 5 weeks. Seven 6th and 7th graders (age: 11.7 ± 0.2 years; BMI: 24.7 ± 2.7) completed pre and post intervention assessments for …

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Examining The Relationship Between Competition Stress And Performance In Collegiate Rodeo Bronc Riders Through Salivary Cortisol And Heart Rate, Tyler K. Handley, Jennifer L. Zoller, Chelsie J. Huseman, Lisa Colvin, William Storer, Amanda Baxter Feb 2025

Examining The Relationship Between Competition Stress And Performance In Collegiate Rodeo Bronc Riders Through Salivary Cortisol And Heart Rate, Tyler K. Handley, Jennifer L. Zoller, Chelsie J. Huseman, Lisa Colvin, William Storer, Amanda Baxter

International Journal of Exercise Science: Conference Proceedings

Competition stress significantly impacts the performance of athletes across various sports. Despite its unique demands, stress in rodeo athletes remains underexplored, largely due to the sport's nomadic and individualistic nature and its prior lack of mainstream attention. While comparisons can be drawn between the intermittent structure of rodeo and mainstream sports like baseball or football, the recent surge in rodeo's popularity has increased interest in optimizing athlete performance. PUROSE: The aim of this study was to identify and compare salivary cortisol concentration (SCC) and physical workloads experienced by riders and horses in practice and competition settings. Additionally, the study aims …

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Exercise Pressor Reflex And Acute Vascular Response To Isometric Exercise With Or Without Blood Flow Restriction, Lin-Sheng Chen, Kazumasa Manabe, Yanbing Zhou, Jide Adebiyi, Tianyu Wang, Takanobu Okamoto, Hirofumi Tanaka Feb 2025

Exercise Pressor Reflex And Acute Vascular Response To Isometric Exercise With Or Without Blood Flow Restriction, Lin-Sheng Chen, Kazumasa Manabe, Yanbing Zhou, Jide Adebiyi, Tianyu Wang, Takanobu Okamoto, Hirofumi Tanaka

International Journal of Exercise Science: Conference Proceedings

Low-intensity exercise combined with blood flow restriction (BFR) is effective in improving muscle strength and hypertrophy. However, exaggerated exercise pressor reflex due to restricted venous outflow and metabolite accumulation triggering metaboreflex has been raised as a concern during BFR training. Additionally, the impact of BFR training on arterial vascular function remains highly controversial. PURPOSE: To evaluate hemodynamic responses to isometric exercise with and without BFR using the post-exercise ischemia (PEI) protocol and examine the acute changes in vascular function before and after BFR isometric exercise. METHODS: Nine apparently healthy young adults (5 females, 28±4 years) completed three sets …

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Comparison Of Overground, Motorized Treadmill And Non-Motorized Treadmill Gait In Younger And Older Adults, Emily L. Chaires, Meghan Mccarthy, Breanna Steele, Scott P. Mclean Feb 2025

Comparison Of Overground, Motorized Treadmill And Non-Motorized Treadmill Gait In Younger And Older Adults, Emily L. Chaires, Meghan Mccarthy, Breanna Steele, Scott P. Mclean

International Journal of Exercise Science: Conference Proceedings

Previously we found that walking on a non-motorized treadmill (NMT) elicited greater EMG activity from plantar flexor muscles compared to walking overground (OG) and on a motorized treadmill (MT) in adults younger than 25 years of age. PURPOSE: To compare muscle activation patterns of lower extremity muscles between MT, NMT and overground (OG) walking in younger and older. METHODS: Twelve healthy older adults (55.4±4.1 yrs, 167.8±9.0 cm, 73.1±13.1 kg ) and 23 healthy younger adults (27.9±8.4 yrs, 169.9±8.4 cm, 72.9±16.5kg) completed separate walking trials for OG, MT and NMT modes at the preferred NMT speed. For EMG normalization participants also …

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Rapid Onset Pressor Response In Young Healthy Hispanic Adults, Ashlesha Dalve, Ruby A. Nyarko, Justo Perez, Jasdeep Kaur Feb 2025

Rapid Onset Pressor Response In Young Healthy Hispanic Adults, Ashlesha Dalve, Ruby A. Nyarko, Justo Perez, Jasdeep Kaur

International Journal of Exercise Science: Conference Proceedings

Hispanic population is the fastest growing ethnic group in the U.S. and experiences a high prevalence of hypertension, a key risk factor of cardiovascular disease. Alterations in the regulation of blood pressure at the onset of exercise are evident in adults with hypertension and those with family history of hypertension. However, it is currently unknown whether such maladaptive pressor responses manifest during acute exercise in young Hispanic adults free from overt cardiovascular disease. PURPOSE: In this study, we examined the blood pressure response at the onset of static handgrip exercise in 19 Hispanic/Latino (H/La; 7 women) and 18 non-Hispanic White …

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Investigating The Epigenetic Regulation Of Innate Immune Memory, Emily Nguyen, Heather L. Caslin Feb 2025

Investigating The Epigenetic Regulation Of Innate Immune Memory, Emily Nguyen, Heather L. Caslin

International Journal of Exercise Science: Conference Proceedings

Innate immune memory is the ability of innate immune cells, such as monocytes and macrophages, to develop “memory” that allows them to respond more efficiently when (re-)exposed to a second stimulus. Innate immune memory is driven by epigenetic changes, including histone methylation (H3K4me3) and acetylation (H3K27ac), which can activate gene transcription at inflammatory loci and drive enhanced activation to a second stimulus. While we have previously shown that macrophage cell cultures treated with palmitate exhibit increased cytokine production and metabolism (outcomes of innate immune), the specific epigenetic mechanisms regulating these changes have not been shown. PURPOSE: This study aimed …

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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 Feb 2025

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 …

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Voluntary Wheel Running Improves Glucose Homeostasis And Visceral Adiposity In Old Mice, Alexandra Canizales, David J. Buckley, Sogol Zahedi, Daniel W. Trott Feb 2025

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 …

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Training Load Differences Between Position And Set In Ncaa D1 Collegiate Women’S Volleyball Match, Alexandra P. Brojanac, David Clark, Katie Munger, Yasuki Sekiguchi Feb 2025

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 …

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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 Feb 2025

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 …

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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 Feb 2025

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 …

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Effects Of Vaping Nicotine And Thc On Respiratory Oxidative Stress And Pulmonary Function, Kayla Mckinley, Shannon Jordan, Nikhil Patel, Alan D. Moore Feb 2025

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 …

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Angiotensin Ii Induced Hypertension Induces Dna Damage Associated Gene Expression In Visceral Adipose, Nathan Cuellar, Sogol Zahedi, David J. Buckley, Daniel W. Trott Feb 2025

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 …

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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 Feb 2025

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 …

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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 Feb 2025

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. …

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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 Feb 2025

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 …

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The Relationship Between Traditional Performance Measures Countermovement Jump Testing In Youth Female Soccer Athletes, Samiha Momin, Haley Goble, Roxanne Miller, Shari Liberman, Bradley Lambert Feb 2025

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 …

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