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Articles 841 - 870 of 16401
Full-Text Articles in Entire DC Network
Impact Of The Occupational Cardiorespiratory Fitness Standard On Firefighter Health Profiles, Macilynn E. Coles, Caiti Dodge, Lisa C. Colvin, Steven E. Martin, Matthew J. Mcallister, Drew E. Gonzalez
Impact Of The Occupational Cardiorespiratory Fitness Standard On Firefighter Health Profiles, Macilynn E. Coles, Caiti Dodge, Lisa C. Colvin, Steven E. Martin, Matthew J. Mcallister, Drew E. Gonzalez
International Journal of Exercise Science: Conference Proceedings
Cardiovascular disease (CVD) is the leading cause of premature mortality in firefighters. Previous work suggests that the relationship between CVD risk and oxidative stress (OS), inflammation, poor fitness, and body composition is elevated in firefighters. Variables including body fat distribution and blood glucose and lipid profiles can be impacted by a poor fitness level. This study provides insight into the potential health benefits of maintaining occupational CRF standards in relation to variables that increase CVD risk. PURPOSE: This study investigated whether FF health profiles differ based on occupational CRF standards. METHODS: 144 FF completed an annual clinical health …
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 …
Goode Health Superfood Chocolate Blend Beverage Improves Indices Of Peripheral Vascular Health And Blood Lipid Profile, John Kolade, James E. Brown, Ario S. Moradi, Hannah E. Nagib, R Matthew Brothers
Goode Health Superfood Chocolate Blend Beverage Improves Indices Of Peripheral Vascular Health And Blood Lipid Profile, John Kolade, James E. Brown, Ario S. Moradi, Hannah E. Nagib, R Matthew Brothers
International Journal of Exercise Science: Conference Proceedings
Cardiovascular disease (CVD) is the leading cause of death in the US and worldwide, influenced by various factors, including elevated blood lipids and impaired blood vessel function. The underlying mechanisms are multifactorial and involve increased vascular tone and/or reduced vascular reactivity, often resulting from diminished nitric oxide bioavailability due to elevated oxidative stress and inflammation. Diets and interventions rich in ingredients with antioxidant properties, such as polyphenols, and anti-inflammatory effects have been shown in clinical and epidemiological studies to reduce the risk of CVD and metabolic diseases. PURPOSE: This study tested the hypothesis that a 14-day, twice-daily consumption of …
Sex Differences In Nutrient Gaps In Active Adults, Christine M. Florez, Christian Rodriguez, Philip Sapp, Jeremy Townsend, Grant M. Tinsley
Sex Differences In Nutrient Gaps In Active Adults, Christine M. Florez, Christian Rodriguez, Philip Sapp, Jeremy Townsend, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
In the United States, the estimated average requirement (EAR) for a nutrient indicates the average daily intake level estimated to meet the requirement of 50% of healthy individuals. As defined by the United States Department of Agriculture, a “nutrient gap” is evaluated by comparing dietary intakes with EAR values of specific nutrients. Nutrient intake <100% of the EAR indicates a nutrient gap. While nutrient gaps have been characterized in the general population, these gaps are less clearly established in active adults. PURPOSE: To evaluate the presence of nutrient gaps within an active, healthy population and to determine if there are sex differences in nutrient gaps. METHODS: The dietary intakes of healthy, active males (n=380 records) and females (n=301 records) were collected using the National Institutes …
The Impact Of Big Steps Obstacle Negotiation On Knee Extensor Control, Hip Abductor Activation, And Inter-Joint Coordination: A Potential Rehabilitation Strategy, Carly R. Biggerstaff, David Wyatt, Emery Nuner, Joshua Hermanns, Daniel Cabrera, Amirhossein Sanaei Ardakani
The Impact Of Big Steps Obstacle Negotiation On Knee Extensor Control, Hip Abductor Activation, And Inter-Joint Coordination: A Potential Rehabilitation Strategy, Carly R. Biggerstaff, David Wyatt, Emery Nuner, Joshua Hermanns, Daniel Cabrera, Amirhossein Sanaei Ardakani
International Journal of Exercise Science: Conference Proceedings
Navigating obstacles while walking is a critical daily activity that requires both precise coordination and balance control, which has significant implications for fall prevention and rehabilitation. PURPOSE: This study aimed to investigate the biomechanical and neuromuscular mechanisms that underlie balance strategies during normal and big step obstacle crossing. METHODS: Twelve healthy young adults (ages 20–24) performed leap-style crossovers of a 15 cm (5.90”) high, 45° angled obstacle under two conditions: normal and big steps. Participants ensured their dominant leg landed on a force plate, entering the single-limb support (SLS) phase for analysis. One-way repeated ANOVA was used for …
The Caloric Cost Of Self-Paced Exercise In Total Body Tabata, Treadmill Running Tabata, And Continuous Treadmill Running., Lily Hargrove, Austin Dunn, James Rowe
The Caloric Cost Of Self-Paced Exercise In Total Body Tabata, Treadmill Running Tabata, And Continuous Treadmill Running., Lily Hargrove, Austin Dunn, James Rowe
International Journal of Exercise Science: Conference Proceedings
PURPOSE: Compare the energy expenditure (EE) of three exercise bouts when performed at a self-selected pace. METHODS: Active men (n=11) and women (n=9) performed 3 separate exercise bouts at a self-selected pace: total body Tabata (TBT), treadmill running Tabata (TRT), and continuous running (CONT) in a counterbalanced manner. Bouts consisted of a 10-minute rest period, 25-minutes of exercise, and a 25-minute recovery period. TBT consisted of repeated cycles of body calisthenics for 20 seconds with 10-seconds rest in between. TRT consisted of repeated sprints on a treadmill in the same manner as TBT. CONT was continuous running on a …
Reproducibility Of The Autonomic Response During Anticipatory Stress, Jenna-Marie Beisert, Jennifer Bigalke, Jeremy Bigalke, Jason Carter
Reproducibility Of The Autonomic Response During Anticipatory Stress, Jenna-Marie Beisert, Jennifer Bigalke, Jeremy Bigalke, Jason Carter
International Journal of Exercise Science: Conference Proceedings
Mental stress increases blood pressure (BP) and heart rate (HR), although muscle sympathetic nerve reactivity (MSNA) differs between individuals. PURPOSE: Anticipatory stress alone causes a cardiovascular and autonomic response to a stressful situation before it occurs. However, the reproducibility of the autonomic response to anticipatory stress remains unknown. The aim of this study was to investigate the reproducibility of the autonomic response to anticipatory stress in healthy adults. We hypothesize the autonomic system will have a reproducible response during anticipatory stress. METHODS: Twenty-one adults (9 male, 12 female; 25±6 years old, BMI: 24± 3kg/m2) underwent the …
A Telehealth-Based, Top-Down Approach To Enhancing Mental Toughness Among Athletics Department Staff, Cameron Blaies, Grant Morgan, Andreas Stamatis
A Telehealth-Based, Top-Down Approach To Enhancing Mental Toughness Among Athletics Department Staff, Cameron Blaies, Grant Morgan, Andreas Stamatis
International Journal of Exercise Science: Conference Proceedings
Mental toughness (MT) is a critical factor associated with performance indicators, such as athletic success and mental well-being, encompassing a mindset that is purposeful, efficient, and flexible in responding to challenges. Despite this, there is a lack of research on MT among athletics department staff, a group integral to supporting athlete performance and driving organizational success. From an organizational psychology perspective, a top-down approach (focusing on the MT of leadership and support staff) has the potential to cascade benefits throughout the organization; yet, it remains underutilized in this context, where efforts typically prioritize athletes. Moreover, the distinct nature of student-facing …
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 …
A 6-Week Lagree Intervention Improves Dynamic Balance And Functional Movement Screen Performance, Mayrena I. Hernandez, Jose N. Romo, Nia Matthews, Mary L. Williams, Christopher D. Greenleaf, Samuel T. Lauman, Cynthia Trowbridge, Harsh H. Buddhadev
A 6-Week Lagree Intervention Improves Dynamic Balance And Functional Movement Screen Performance, Mayrena I. Hernandez, Jose N. Romo, Nia Matthews, Mary L. Williams, Christopher D. Greenleaf, Samuel T. Lauman, Cynthia Trowbridge, Harsh H. Buddhadev
International Journal of Exercise Science: Conference Proceedings
Lagree methodology is an increasingly popular novel progressive exercise program similar to Pilates. However, no research has prospectively examined its effects on functional performance and balance. PURPOSE: To determine the effectiveness of a 6-week Lagree methodology program on functional performance and balance in healthy adults. METHODS: Eight healthy adults (6F, 26±10 years, 71.6± 22.1 kg, 163±12 cm) participated in this exploratory case series. Participants completed all 7 movement components of the Functional Movement Screen (FMS) and Lower Quarter Y-Balance Test pre- and post-intervention. This 6-week Lagree program involved progressive resistance training via 11 different exercises (e.g., planks, runner’s lunge squat, …
'Super' Shoes Alter Jump Kinematics, But Not Kinetics, Marshall Tousant, Chaehyun Byun, Cheyenne Martinez, Michael D. Oldham, Vipa Bernhardt
'Super' Shoes Alter Jump Kinematics, But Not Kinetics, Marshall Tousant, Chaehyun Byun, Cheyenne Martinez, Michael D. Oldham, Vipa Bernhardt
International Journal of Exercise Science: Conference Proceedings
‘Super’ shoes improve running economy and endurance running performance (Hoogkamer et al, 2018; Joubert & Jones, 2022). However, they do not appear to improve jump performance or balance (Tousant et al. 2024). ‘Super’ shoes are designed with a light-weight, highly compliant and resilient midsole foam and a rigid carbon fiber plate. The foam material can store mechanical energy, i.e., compliance, and return the energy, i.e., resilience (Worobets et al, 2014); while the carbon fiber plate increases bending stiffness and manipulates the leverage of the ankle and metatarsophalangeal point, propelling the body upward and forward (Roy & Stefanyshyn, 2006). PURPOSE: The …
Targeted Soleus Muscle Activation Enhances Very Low-Density Lipoprotein Triglyceride Metabolism Via Lipoprotein Lipase, Daniel P. Leblanc, Marc T. Hamilton
Targeted Soleus Muscle Activation Enhances Very Low-Density Lipoprotein Triglyceride Metabolism Via Lipoprotein Lipase, Daniel P. Leblanc, Marc T. Hamilton
International Journal of Exercise Science: Conference Proceedings
Lipoprotein lipase (LPL) is the rate limiting enzyme for tissue specific plasma triglyceride (TG) utilization. There is a strong causal link between LPL and cardiovascular health. PURPOSE: Our translational studies investigated the soleus muscle aiming to answer the following questions: What are the mechanisms responsible for the potent process of regulating LPL within the soleus muscle? Can individuals with low fitness levels capitalize on the unique phenotype of the soleus muscle to markedly enhance systemic plasma lipid metabolism through localized contractile activity, even though the muscle constitutes only ~1% of body weight? METHODS: We began by testing the hypothesis that …
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 …
Elevated Mtorc1 Signaling In Skeletal Muscle Alters Mitochondrial Dynamics And H2o2 Production And Exacerbates Diet-Induced Hyperglycemia, Erik D. Marchant, Hanna Kalenta, Sean P. Kilroe, Jacquelyn May, Blake B. Rasmussen
Elevated Mtorc1 Signaling In Skeletal Muscle Alters Mitochondrial Dynamics And H2o2 Production And Exacerbates Diet-Induced Hyperglycemia, Erik D. Marchant, Hanna Kalenta, Sean P. Kilroe, Jacquelyn May, Blake B. Rasmussen
International Journal of Exercise Science: Conference Proceedings
The mechanisms underlying skeletal muscle insulin resistance are not completely understood, but altered signaling through mTORC1 is associated with insulin resistance. PURPOSE: Determine if the disruption of the GATOR1 complex and subsequent mTORC1 hyperactivation is sufficient to drive insulin resistance in skeletal muscle with or without a western diet. METHODS: Muscle-specific DEPDC5 (a component of GATOR1) knockout mice or littermate controls were administered a western diet or control synthetic chow for 12 weeks and assessed for fasting glucose and insulin, oral glucose tolerance, and mitochondrial dynamics and function (respiration and H2O2 production). RESULTS: Western diet increased fasting …
No Impact Of Cardiovascular Disease Risk Classification On The Stress Response To Firefighting, Kelly Hines, Ryan Sowinski, Steven E. Martin, Lisa C. Colvin, Matthew J. Mcallister, Drew E. Gonzalez
No Impact Of Cardiovascular Disease Risk Classification On The Stress Response To Firefighting, Kelly Hines, Ryan Sowinski, Steven E. Martin, Lisa C. Colvin, Matthew J. Mcallister, Drew E. Gonzalez
International Journal of Exercise Science: Conference Proceedings
Firefighters (FF) experience elevations in stress biomarkers during live-fire suppression, which is posited to exacerbate cardiovascular disease (CVD) risk. It is unclear if the physiological stress response differs between low-risk (LOW) and moderate-risk (MOD) FF classified by the American College of Sports Medicine (ACSM) standards. PURPOSE: This study assessed the differences in stress response to a live fire-training evolution (LFTE) between LOW and MOD CVD risk classification groups. METHODS: Forty-four (n=44) FF completed an annual clinical health assessment, wherein they were risk-stratified in LOW or MOD classifications based on the ACSM criteria. Saliva samples were collected baseline (BL), …
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) …
The Relationship Between Drop Vertical Jump Performance Variables And Knee Injury Risk Factors, Cheyenne Martinez, Chaehyun Byun, Marshall Tousant, Brian Jones, Ouays Bakcha, Veronika Kramarenko, Joseph Mcclain, Vipa Bernhardt, Michael D. Oldham
The Relationship Between Drop Vertical Jump Performance Variables And Knee Injury Risk Factors, Cheyenne Martinez, Chaehyun Byun, Marshall Tousant, Brian Jones, Ouays Bakcha, Veronika Kramarenko, Joseph Mcclain, Vipa Bernhardt, Michael D. Oldham
International Journal of Exercise Science: Conference Proceedings
The knee is a common area where injuries occur in athletic populations. Leppänen et al. (2016) reports most common occurrence of knee injuries occur during non-contact events. PURPOSE: The purpose of this study was to explore the relationship between drop vertical jump performance variables and knee injury risk factors. METHODS: Participants were from Division I collegiate sports; football (n = 522), soccer (n = 93), volleyball (n = 35), softball (n = 44), track and field (n = 77), cross country (n = 11), golf (n = 20), and basketball ( …
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 …
Effects Of Nmes On Emg-Emg Coherence Across Glenohumeral Muscles During Fatigue In Rotator Cuff Disease, Xinyu Li, Huiying Zhu, Zhihao Fan, Lisa Griffin
Effects Of Nmes On Emg-Emg Coherence Across Glenohumeral Muscles During Fatigue In Rotator Cuff Disease, Xinyu Li, Huiying Zhu, Zhihao Fan, Lisa Griffin
International Journal of Exercise Science: Conference Proceedings
Rotator cuff disease (RCD), a common pathology of shoulder pain, can be attributed to muscle weakness and altered humeral head stability, particularly during neuromuscular fatigue. Electromyographic (EMG)-EMG coherence quantifies shared oscillatory input between motoneuron pools, providing insight into motor control deficiencies in RCD. PURPOSE: To investigate the effects of neuromuscular electrical stimulation (NMES) on EMG-EMG coherence across glenohumeral muscles during fatigue in RCD. METHODS: Eight participants with RCD (39 ± 19 yrs) underwent two sessions separated by 72 hrs. Intramuscular EMG was recorded from the supraspinatus (SS), and surface EMG was recorded from the infraspinatus (IS) and middle …
Sex-Specific Responses Of Heat Acclimation On Running Performance In Cool Environmental Conditions, Marcos S. Keefe, Ryan A. Dunn, Kelly B. Elliott, Ruben E. Moya, Yasuki Sekiguchi
Sex-Specific Responses Of Heat Acclimation On Running Performance In Cool Environmental Conditions, Marcos S. Keefe, Ryan A. Dunn, Kelly B. Elliott, Ruben E. Moya, Yasuki Sekiguchi
International Journal of Exercise Science: Conference Proceedings
Training and competing in the heat negatively impact athlete performance and health. Heat acclimation (HA) involves repeated heat exposures that many endurance athletes use to optimize performance and safety when competing in the heat. Although HA has been shown to improve endurance performance in the heat, contention remains whether it may confer these adaptations to a cool environment. PURPOSE: To Investigate physiological and performance adaptations in a cool environment following HA in endurance athletes. METHODS: Eleven high-level endurance runners (4 males [age: 21 ± 4 years; body mass: 78.63 ± 9.01 kg; height: 182.55 ± 3.97 cm; maximal …
Various Measures Of Arterial Stiffness In Overweight And Obesity: A Systematic Review And Meta-Analysis, Yanbing Zhou, Kazumasa Manabe, Takanobu Okamoto, Hirofumi Tanaka
Various Measures Of Arterial Stiffness In Overweight And Obesity: A Systematic Review And Meta-Analysis, Yanbing Zhou, Kazumasa Manabe, Takanobu Okamoto, Hirofumi Tanaka
International Journal of Exercise Science: Conference Proceedings
Overweight and obesity are widely recognized as significant contributors to adverse cardiovascular outcomes. Similarly, arterial stiffness has been strongly linked to an increased risk of cardiovascular events. Despite these parallels, the relationship between arterial stiffness and overweight/obesity remains highly contentious. This lack of consensus may stem from differences in the methodologies used to measure arterial stiffness across studies. PURPOSE: The aim of this systematic review and meta-analysis was to compare arterial stiffness measured with different methods between overweight/obesity and healthy lean controls. METHODS: Systematic searches were conducted in multiple databases. Studies were included if they involved adults aged …
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 …
Effect Of Voltage-Dependent Potassium Channel Antagonism On Vasodilation In Skeletal Muscle Of Humans, Ysabella I. Ruiz-Pick, Rauchelle E. Richey, Brenda L. Gilliland, Tyson C. Garfield, Asim Kichloo, Albert H. Olivencia-Yurvati, Gregory M. Dick, Steven A. Romero
Effect Of Voltage-Dependent Potassium Channel Antagonism On Vasodilation In Skeletal Muscle Of Humans, Ysabella I. Ruiz-Pick, Rauchelle E. Richey, Brenda L. Gilliland, Tyson C. Garfield, Asim Kichloo, Albert H. Olivencia-Yurvati, Gregory M. Dick, Steven A. Romero
International Journal of Exercise Science: Conference Proceedings
Vascular smooth muscle cells in resistance arterioles express a diverse array of ion channels that control microvascular function. Specifically, voltage-dependent potassium (KV) channels induce vasodilation via smooth muscle hyperpolarization, positioning these channels as important regulators of vascular tone, and thus blood flow. PURPOSE: Despite substantial research exploring the influence of KV channels in the regulation of blood flow in various animal models, many aspects of their regulation remain incompletely understood in humans. Specifically, this relationship has never been explored in human skeletal muscle in vivo, the major site of total peripheral resistance. Therefore, we tested …
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 …