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Articles 721 - 750 of 13351
Full-Text Articles in Entire DC Network
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
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, 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
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, 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
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, Samiha Momin, Haley Goble, Roxanne Miller, Shari Liberman, Bradley Lambert
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, Kyle Jean, Karissa A. Mesquita, David Clark, Yasuki Sekiguchi
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, Harrison A. Peyrovi, Steven A. Romero, Johnathan D. Tune, Ysabella Ruiz-Pick, Asim Kichloo, Gregory M. Dick, Brenda L. Gilliland
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, Kazumasa Manabe, Owen N. Beck, Justus Ortega, Hirofumi Tanaka
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, Gabriel Rollins, Ernest Rimer, Xavier Smith, Nathan Wells, Brett Hayes, Jennifer Daily, Christopher Peters, Andreas Stamatis
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, Ruby A. Nyarko, Ashlesha D. Dalve, Justo Perez Iii, Pratima V. Kumar, Jasdeep Kaur
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, Miranda N. Farrar, Nancy Morales
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 …
Gender Gap In Stress: Differences Amongst Sex In Biomarkers Of Stress And Anxiety., Stephanie N. Uriegas, Matthew J. Mcallister, Nathan Sutton, Hunter Martaindale
Gender Gap In Stress: Differences Amongst Sex In Biomarkers Of Stress And Anxiety., Stephanie N. Uriegas, Matthew J. Mcallister, Nathan Sutton, Hunter Martaindale
International Journal of Exercise Science: Conference Proceedings
Past research has shown that females have lower biomarkers of stress compared to males. Further, when exposed to acute stressors, females have also been shown to demonstrate reduced stress biomarker responses compared to males. However, this difference has not been explored with respect to different types of stress (i.e., physical vs mental and combined physical and mental stress). PURPOSE: To examine male and female (sex) differences in biomarkers of stress and anxiety, following the exposure of physical stress (exercise) and concurrent mental and physical stress. METHODS: This study was a randomized controlled study. Subjects (n=54; 29 males & …
Effects Of Acute Lower Body Resistance Exercise On Body Composition Parameters Assessed By Dxa, Mathis Rollin, Elizabeth Hardy, Madison Merritt, Nicholas Murphy, James Scobercea, Jack Wright, Nikolas Keratsoupoulos, Christine Florez, Kindyle L. Brennan, Grant Tinsley, Jaci Kelly, Mandy Parra, Lem Taylor
Effects Of Acute Lower Body Resistance Exercise On Body Composition Parameters Assessed By Dxa, Mathis Rollin, Elizabeth Hardy, Madison Merritt, Nicholas Murphy, James Scobercea, Jack Wright, Nikolas Keratsoupoulos, Christine Florez, Kindyle L. Brennan, Grant Tinsley, Jaci Kelly, Mandy Parra, Lem Taylor
International Journal of Exercise Science: Conference Proceedings
Dual-energy X-ray-absorptiometry (DXA) analysis has the capability to measure bone mineral content (BMC), fat mass (FM), and lean mass (LM), also known as a 3-compartment model. Various factors such as exercise, hydration status, glycogen status, and others are thought to influence the accuracy of DXA estimated body composition. PURPOSE: The purpose of this study is to investigate acute changes in DXA LM and FM results pre-and-post prescribed lower body exercise compared to a non-exercise treatment. METHODS: Participants (n = 14; 22.71 ± 1.63 years; 169.42 ± 13.23 cm; 80.79 ± 17.71 kg) completed each trial that consisted of two treatments …
Functional Electrical Stimulation Of The Soleus Increases Ankle Mechanics With A Modest Increase In Metabolic Rate During Walking In Young And Older Adults, Ningzhen Zhao, Lisa Griffin, Owen N. Beck
Functional Electrical Stimulation Of The Soleus Increases Ankle Mechanics With A Modest Increase In Metabolic Rate During Walking In Young And Older Adults, Ningzhen Zhao, Lisa Griffin, Owen N. Beck
International Journal of Exercise Science: Conference Proceedings
Better mobility improves older adult health, independence, and quality of life. Unfortunately, walking performance declines with advanced age, as older adults expend 10-25% more metabolic energy during walking compared to young adults. This age-related increase in metabolic energy expenditure is partly because older adults characteristically produce less ankle mechanics during walking compared to young adults, in turn compensating with increased hip mechanics (distal-to-proximal redistribution). Such mechanical changes may be attenuated using functional electrical stimulation (FES) to enhance ankle extensors. Stimulating ankle extensors during walking likely increases joint output and underlying muscle metabolism, with concomitant reductions in hip mechanics. If so, …
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
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 …
24-Hour Movement Behaviors And Neurodevelopmental Outcomes In Mexican Preschoolers: Exploring Bmi As A Potential Mediator, Christian Corral, Alejandra Jauregui De La Mota, Gabriela Argumedo, Armando G. Olvera, Nicolas Aguilar, Anthony D. Okely, Deborah Salvo
24-Hour Movement Behaviors And Neurodevelopmental Outcomes In Mexican Preschoolers: Exploring Bmi As A Potential Mediator, Christian Corral, Alejandra Jauregui De La Mota, Gabriela Argumedo, Armando G. Olvera, Nicolas Aguilar, Anthony D. Okely, Deborah Salvo
International Journal of Exercise Science: Conference Proceedings
Movement behaviors – sleep, sedentary behavior, and physical activity – affect children’s health. However, the differential effect of specific physical activity intensities remains understudied, particularly in low and middle income countries facing the double burden of disease. PURPOSE: To examine the associations of 24-hour movement behaviors on neurodevelopmental outcomes in Mexican preschoolers. We also explore the associations of movement behaviors with body mass index (BMI) and mediation by body mass index in the association with neurodevelopment. METHODS: 64 children (age = 4.36 ± 0.42 years, 48% female) in the Mexican pilot of the International Study of Movement Behaviors …
Reliability Of Handgrip Strength Measurements And Their Relationship With Physical Performance Outcomes In Older Women, Alexandra Khartabil, Ty B. Palmer
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, Anupama Thapa, Ana Carolina Panhan, Erin Lally, Joosung Kim
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 …
Changes In Gait Patterns: Indicators Of Increased Fall Risk Across Diverse Age Groups, Diego Diaz-Vega, Heontae Kim, Ho Han, Jungyu Lee, Fatima Siddiqua
Changes In Gait Patterns: Indicators Of Increased Fall Risk Across Diverse Age Groups, Diego Diaz-Vega, Heontae Kim, Ho Han, Jungyu Lee, Fatima Siddiqua
International Journal of Exercise Science: Conference Proceedings
Gait patterns, including measures such as velocity, step length differential, and various temporal aspects of the gait cycle, are essential indicators of an individual's mobility and balance. With aging, changes in these gait metrics are commonly observed and are closely linked to an increased risk of falls. However, detailed evidence on gait changes across different age groups remains limited, particularly in healthy adults. PURPOSE: The primary aim of this study is to identify key gait metrics and evaluate their potential as indicators of increased fall risk across diverse age groups. METHODS: A total of 252 healthy adults aged …
Accumulated Seasonal Effects Of External Training Load On Performance, Sydnei Mooring, Harsh Buddhadev, Mayrena I. Hernandez, Jennifer Bunn
Accumulated Seasonal Effects Of External Training Load On Performance, Sydnei Mooring, Harsh Buddhadev, Mayrena I. Hernandez, Jennifer Bunn
International Journal of Exercise Science: Conference Proceedings
External training load (ETL), which characterizes the mechanical stress sustained during physical activity, is a key determinant of athletic performance. Understanding seasonal variations in ETL provides valuable insight for optimizing performance and reducing overuse injury risk in volleyball, a sport heavily reliant on vertical jumping actions. PURPOSE: To examine seasonal variations in ETL and performance metrics in high school volleyball athletes, with a specific focus on jump-related mechanical variables. METHODS: This study involved secondary analysis of data collected during a prospective observational study of a 6A high school volleyball team competing in the 2021 Texas University Interscholastic League. Data from …
Impact Of Age On Firefighter Health And Fitness Outcomes, Jisun Chun, Michael J. Conner, Ryan J. Sowinski, Lisa C. Colvin, Steven E. Martin, Drew E. Gonzalez
Impact Of Age On Firefighter Health And Fitness Outcomes, Jisun Chun, Michael J. Conner, Ryan J. Sowinski, Lisa C. Colvin, Steven E. Martin, Drew E. Gonzalez
International Journal of Exercise Science: Conference Proceedings
Research indicates that cardiovascular disease (CVD) risk among firefighters (FF) may be influenced by factors like oxidative stress, inflammation, low fitness levels, and body composition, with age potentially playing a role in risk variation. It is well established that age is an independent CVD risk factor, but limited data exist concerning the impact of age on FF health and fitness. PURPOSE: This study assessed the impact of CRF on the stress response to a live-fire training evolution (LFTE). METHODS: 144 FF completed an annual clinical health assessment. Shapiro-Wilk Test was used to assess normality. One-way ANOVA or Kruskal-Wallis …
The Effect Of Menstrual Cycle Phase On Igf-1 And Myostatin After An Acute Bout Of Anaerobic Exercise: A Preliminary Analysis, Kelsi R. Lambright, Cayla Clark, Ashley Latchford, Edwin J. Davila, Dan E. Newmire
The Effect Of Menstrual Cycle Phase On Igf-1 And Myostatin After An Acute Bout Of Anaerobic Exercise: A Preliminary Analysis, Kelsi R. Lambright, Cayla Clark, Ashley Latchford, Edwin J. Davila, Dan E. Newmire
International Journal of Exercise Science: Conference Proceedings
Hormonal fluctuations throughout the menstrual cycle influence various physiological processes, including skeletal muscle metabolism. Understanding how anabolic and catabolic pathways respond to anaerobic exercise in females is crucial for uncovering the mechanisms behind muscle adaptations. The limited research on the influence of menstrual cycle fluctuations on muscle metabolism underscores the need for this study and further exploration of exercise physiology in females. PURPOSE: The purpose of this study is to investigate the effects of menstrual cycle phases on the anabolic hormone-insulin-like growth factor-1 (IGF-1) and the catabolic regulator myostatin (GDF-8) in response to a bout of anaerobic exercise in eumenorrheic …
Body Composition Impacts Jump Performance In D1 Athletes, Veronika Kramarenko, Vipa Bernhardt, Michael D. Oldham, Brian Jones, Ouays Bakcha, Chaehyun Byun, Cheyenne Martinez, Joseph Mcclain, Marshall Tousant
Body Composition Impacts Jump Performance In D1 Athletes, Veronika Kramarenko, Vipa Bernhardt, Michael D. Oldham, Brian Jones, Ouays Bakcha, Chaehyun Byun, Cheyenne Martinez, Joseph Mcclain, Marshall Tousant
International Journal of Exercise Science: Conference Proceedings
INTRODUCTION: Body composition is critical in athletic performance, influencing metrics such as jump height and force production. Variations in body composition, such as increased lean tissue mass and reduced fat mass, have been identified as strong predictors of superior jump performance due to their positive effects on power-to-weight ratios and reduced injury risk (MacDonald et al., 2013). Lean mass is strongly correlated with improved jump performance, as greater lean mass enhances muscle cross-sectional area and, consequently, the force and power generated during physical activities like countermovement jumps (CMJ) (Stephenson et al., 2015). Low body fat percentages are generally associated with …
Anaerobic Capacity Predicts Firefighter Job Tasks, Chaehyun Byun, Cheyenne Martinez, Marshall Tousant, Vipa Bernhardt, Michael D. Oldham, Hussien Jabai
Anaerobic Capacity Predicts Firefighter Job Tasks, Chaehyun Byun, Cheyenne Martinez, Marshall Tousant, Vipa Bernhardt, Michael D. Oldham, Hussien Jabai
International Journal of Exercise Science: Conference Proceedings
INTRODUCTION: Several studies reported physical inactivity in up to two-thirds of firefighters; however, firefighters’ job tasks, such as carrying heavy equipment or climbing stairs, require strong aerobic fitness, anaerobic capacity, muscular endurance, and strength. Due to the high recommended physical ability, firefighters are required to participate in physical activity to enhance job performance and lower injury risk (Smith, 2011). Beitia et al. (2022) reported that physical ability test performance and anaerobic systems are significantly correlated. A recent study conducted by the author indicated that firefighter job tasks correlate with push-ups and 300-yard shuttle runs the most (Byun, 2024). PURPOSE: The …
Developing An Evidence-Based Model For Healthy Stride Length Prediction, Jungyu Lee, Ho Han, Heontae Kim, Diego Diaz-Vega
Developing An Evidence-Based Model For Healthy Stride Length Prediction, Jungyu Lee, Ho Han, Heontae Kim, Diego Diaz-Vega
International Journal of Exercise Science: Conference Proceedings
Stride length is a vital health indicator, reflecting physical fitness and mobility status. Although several existing formulas aim to estimate stride length, many are limited by a lack of scientific validation, especially among healthy, active adults. This study addresses these limitations by developing a validated model based on healthy adults without known mobility impairments, aiming to establish a more accurate, clinically useful standard for stride length estimation. The model provides a reference range for healthy stride length, usable as a tool to identify individuals at risk of mobility issues. PURPOSE: To develop an evidence-based model for predicting stride length …
Pre- To Post-Season Changes In Body Composition And Movement Quality And Quantity In D1 Football Players, Brian Jones, Ouays Bakcha, Chaehyun Byun, Veronika Kramarenko, Cheyenne Martinez, Joseph Mcclain, Marshall Tousant, Vipa Bernhardt, Michael D. Oldham
Pre- To Post-Season Changes In Body Composition And Movement Quality And Quantity In D1 Football Players, Brian Jones, Ouays Bakcha, Chaehyun Byun, Veronika Kramarenko, Cheyenne Martinez, Joseph Mcclain, Marshall Tousant, Vipa Bernhardt, Michael D. Oldham
International Journal of Exercise Science: Conference Proceedings
INTRODUCTION: Body composition may influence an individual's movement efficiency and performance outcomes. Lower body fat percentage may enable individuals, either sedentary or athletic, to perform movements more efficiently, while greater total lean mass may enhance performance in strength and power-related activities. PURPOSE: The purpose of this study was to analyze the changes in collegiate football players’ total lean mass and body fat percentage, as well as movement quantity and quality measures from preseason to postseason. METHODS: Data from a larger study were analyzed for this project. Division 1 male football players (n= 72, 19.6 ± 1.4 yrs) …
Evaluating Rotc Cadets’ Knowledge Of General And Sports Nutrition, Sheyla Leon, Adriana Gil, Ryan Sowinski, Lisa C. Colvin, Steven E. Martin, Stella Volpe, Drew E. Gonzalez
Evaluating Rotc Cadets’ Knowledge Of General And Sports Nutrition, Sheyla Leon, Adriana Gil, Ryan Sowinski, Lisa C. Colvin, Steven E. Martin, Stella Volpe, Drew E. Gonzalez
International Journal of Exercise Science: Conference Proceedings
Reserve Officer Training Corps (ROTC) cadets regularly undergo highly stressful and physically demanding training, making adequate nutrition knowledge and eating habits essential for optimal health and physical performance. However, there is a paucity of data on ROTC cadets’ general and sports nutrition knowledge. PURPOSE: We evaluated ROTC cadets' general and sports nutrition knowledge. METHODS: Cross-sectional data were obtained from 206 ROTC cadets regarding sports performance and nutrition supplementation knowledge via the validated paper-based questionnaire, Nutrition Knowledge Questionnaire for Athletes (NKQA). The questionnaire data were analyzed using SPSS version 29 software. Shapiro-Wilk Test was used to assess normality. The correct responses …
The Associations Between Acute High-Intensity Exercise, Perceived Energy Levels, And Cognition, Myungjin Jung, Paul Dinneen Loprinzi, Zakary Patrick
The Associations Between Acute High-Intensity Exercise, Perceived Energy Levels, And Cognition, Myungjin Jung, Paul Dinneen Loprinzi, Zakary Patrick
International Journal of Exercise Science: Conference Proceedings
High-intensity exercise has been theoretically proposed to enhance hippocampal-dependent cognition and impair prefrontal cortex (PFC)-dependent cognition immediately following exercise. However, empirical evidence has been inconsistent in supporting these effects. PURPOSE: This study aimed to reconcile discrepancies between theoretical predictions and empirical findings by exploring the effects of acute high-intensity exercise on different types of cognition. It also examined the potential role of psychological factors, including motivation, perceived energy availability, and perceived energy cost, in the exercise-cognition relationship. METHODS: Fifty-five healthy young adults (mean age = 20.4 years + 1.8) participated in a within-subject experiment involving five visits. The …
The Relationship Between Handgrip Strength And Cardiovascular Risk Factors In Older Women, Adriana N. Guerrero, Emily Sauers
The Relationship Between Handgrip Strength And Cardiovascular Risk Factors In Older Women, Adriana N. Guerrero, Emily Sauers
International Journal of Exercise Science: Conference Proceedings
Cardiovascular disease is the leading causes of death in the world. Several clinical trials have found that handgrip strength is associated with lower cardiovascular risk and related death. PURPOSE: The purpose of this study was to explore the relationship between cardiovascular risk factors and handgrip strength. METHODS: Subjects for this study included 8 women from the Congregation of Devine Providence (78.13+7.79 yrs) at Our Lady of the Lake University. Preliminary measures included a medical history questionnaire and the CHAMPS physical activity questionnaire. On the first day of testing, subjects arrived fasted between 7-9am. After a 5-minute rest, blood pressure and …
Does Swearing Improve Exercise Performance And Pain Tolerance?: Cultural Perspective, Jide Yinka Adebiyi, Christos Kyrillou, Elijah Martinez, Anika Patel, Emily Payne, Linsheng Chen, Daroonwan Suksom, Hirofumi Tanaka
Does Swearing Improve Exercise Performance And Pain Tolerance?: Cultural Perspective, Jide Yinka Adebiyi, Christos Kyrillou, Elijah Martinez, Anika Patel, Emily Payne, Linsheng Chen, Daroonwan Suksom, Hirofumi Tanaka
International Journal of Exercise Science: Conference Proceedings
Swearing is often generated by self or received from others (e.g., coaches) during physical exertion for various reasons including punctuating the passion, releasing frustration, and resetting the mind. However, the effects of swearing and yelling on exercise performance and pain tolerance remain largely unexplored. Additionally, it is unknown whether individuals from different cultures experience varying degrees of impact of yelling and swearing. PURPOSE: We determined the impact of self-generated and observer-generated swearing and yelling on exercise performance and pain tolerance in individuals living in the US where swearing is often used and heard and in Thailand where such occurrence is …
Assessing Accuracy Of Smartwatch-Based Estimation Of Maximum Oxygen Consumption Using Different Watches, Chelsea Seifert, Jenna O'Dell, Aaron Canham, Shae Harris, Shelly Weise
Assessing Accuracy Of Smartwatch-Based Estimation Of Maximum Oxygen Consumption Using Different Watches, Chelsea Seifert, Jenna O'Dell, Aaron Canham, Shae Harris, Shelly Weise
International Journal of Exercise Science: Conference Proceedings
Maximal oxygen consumption (VO2max) is a predictor of overall health and a key measure of cardiovascular fitness and aerobic capacity. As wearable technology advances, smartwatches are increasingly used to track cardiovascular health metrics. PURPOSE: The purpose of this study was to evaluate the validity and reliability of maximal oxygen consumption estimates from two leading smartwatches. METHODS: 15 participants (11M, 4F), aged 19-29 (23.8±3.2) years, were recruited and met inclusion criteria for the study. VO2max for all participants was determined in a controlled laboratory environment using a metabolic gas analyzer. Subjects completed a graded exercise test on a …