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Articles 31 - 60 of 17524
Full-Text Articles in Education
Preliminary Data On The Effect Of Exercise Time Of Day In Sedentary Young Adult Females, Autum Andrusick, Julia Martin, Robyn T. Whitehead, Malcolm T. Whitehead
Preliminary Data On The Effect Of Exercise Time Of Day In Sedentary Young Adult Females, Autum Andrusick, Julia Martin, Robyn T. Whitehead, Malcolm T. Whitehead
International Journal of Exercise Science: Conference Proceedings
Research studies investigating the time of day that individuals engage in exercise have not specifically targeted sedentary females or their preferred time of day to engage in exercise. Previously published studies have implemented cohorts that include both males and females and/or have focused on hormonal influences and daily patterns. Perceived energy and activation levels (for example: active, calm, and sleepy) have yet to be investigated as determinants of exercise time of day preference factors. PURPOSE: The purpose of the study was to determine if exercise time of day effects mood in sedentary adult females. METHODS: Eight females aged 23 ± …
Does Perceived Competence And Practice Type Influence Motor Performance In Softball Pitchers Developing A New Pitch Type?, Anthony W. Fava, Matthew Miller, Emily Sauers, Gretchen Oliver
Does Perceived Competence And Practice Type Influence Motor Performance In Softball Pitchers Developing A New Pitch Type?, Anthony W. Fava, Matthew Miller, Emily Sauers, Gretchen Oliver
International Journal of Exercise Science: Conference Proceedings
Competence-based motivation frameworks use perceived self-confidence (PSC) to explain performance outcomes. Although PSC has been associated with improved performance on fundamental motor skills, PSC can also be task specific and may change depending on particular contexts within a sport. PURPOSE: To assess whether PSC influenced motor performance in softball pitchers developing a new pitch type under two different practice types. METHODS: Fifty adolescent-aged softball pitchers participated. Pitchers were randomly assigned into two practice types: Constraints-led Approach (CLA), (14.9±1.2y,64.8±10.1kg,1.69±0.1m), and Traditional (Trad), (14.5±1.0y, 65.4±11.4kg, 1.67±0.1m). Recruited pitchers indicated the drop ball (DB) was not their ‘go-to’ pitch nor was …
Effect Of Lower Leg Air Compression On Systemic Blood Pressure, Kimberly Livingston, John D. Smith
Effect Of Lower Leg Air Compression On Systemic Blood Pressure, Kimberly Livingston, John D. Smith
International Journal of Exercise Science: Conference Proceedings
Given the critical role of blood pressure monitoring in clinical settings and the widespread use of compression therapy, it is important to clarify whether and how leg compression devices influence blood pressure. PURPOSE: To examine blood pressure and heart rate responses to intermittent pneumatic compression (IPC). METHODS: Participants (n=21, age=24.3±8.0 yrs, ht=164.1±7.4 cm, wt=69.5±15.2 kg) reclined on a chair and rested for 5 minutes after which blood pressure and heart rate was measured using an Omron automatized device. An air compression therapy boot was used on the right and left legs using a circulation mode on the maximum setting for …
Association Between Habitual Sleep Duration Variability And Cardiovascular Reactivity To Mental Stress, Anjana Chepur, Jeremy A. Bigalke, Jason R. Carter
Association Between Habitual Sleep Duration Variability And Cardiovascular Reactivity To Mental Stress, Anjana Chepur, Jeremy A. Bigalke, Jason R. Carter
International Journal of Exercise Science: Conference Proceedings
Nightly variability in sleep duration is an independent predictor of cardiovascular risk, yet the physiological mechanisms underlying this association remain unclear. Few investigations have focused on whether variability in habitual sleep duration influences autonomic and cardiovascular responses to acute stress. PURPOSE: The purpose of this study was to examine whether habitual variability in nightly sleep duration predicts autonomic and cardiovascular reactivity to acute psychosocial stress, as measured by blood pressure, heart rate, and heart rate variability (HRV) changes during the Trier Social Stress Test (TSST). We hypothesized that individuals with greater sleep duration variability would exhibit exaggerated autonomic and cardiovascular …
Effect Of Walking With Weighted Vest On Gait Mechanics And Energy Expenditure, Nicholas Becerra, John D. Smith
Effect Of Walking With Weighted Vest On Gait Mechanics And Energy Expenditure, Nicholas Becerra, John D. Smith
International Journal of Exercise Science: Conference Proceedings
Weighted vests are used in many different types of exercises to increase difficulty/intensity. The distribution of weight matters when it comes to performance (Gerhart et al. 2020), and if weight is not distributed properly, then balance may be affected, thereby changing gait and further increasing energy expenditure. Others have also suggested increasing the load of the weighted vest can decrease pH level within the body (Martínez-Noguera, et al. 2024), however it is unclear is changes in gait are contributing to this increased effort. PURPOSE: to investigate the effect of using a weighted vest while walking on a treadmill has …
Skeletal Muscle Mass Estimation By Dual-Energy X-Ray Absorptiometry And Bioimpedance Techniques In Muscular, Resistance-Trained Adults, John R. Alexander, Christian Rodriguez, Christine M. Florez, Ethan G. Tinoco, Julia Whitson, Carina M. Velasquez, Grant M. Tinsley
Skeletal Muscle Mass Estimation By Dual-Energy X-Ray Absorptiometry And Bioimpedance Techniques In Muscular, Resistance-Trained Adults, John R. Alexander, Christian Rodriguez, Christine M. Florez, Ethan G. Tinoco, Julia Whitson, Carina M. Velasquez, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
Skeletal muscle mass (SMM) is an important body composition metric in clinical and research settings. However, criterion methods such as magnetic resonance imaging and computed tomography are largely inaccessible, so surrogate methods such as dual-energy X-ray absorptiometry (DXA) and bioelectrical impedance are used to estimate SMM. The agreement of these surrogate estimates may be impacted by physiological characteristics of the specific populations being evaluated. PURPOSE: To compare SMM estimates derived from DXA and bioimpedance methods using differing prediction equations within a sample of muscular, resistance-trained adults. METHODS: Forty participants (23 M, 17 F; [mean ± SD] age: 28.1 …
Effect Of A Bungee Tension System On Physiological And Gait Variables While Walking, Adriana F. Oviedo, Gary Guerra, John D. Smith
Effect Of A Bungee Tension System On Physiological And Gait Variables While Walking, Adriana F. Oviedo, Gary Guerra, John D. Smith
International Journal of Exercise Science: Conference Proceedings
Unloaded treadmill walking has shown to improve motor function, balance and locomotion ability. This type of mechanism is commonly used in rehabilitation and therapy settings and is becoming more popular. PURPOSE: To examine two different bungee attachments on oxygen consumption (VO2), heart rate (HR), rating of perceived exertion (RPE Borg’s 6-20, VAS) and gait. METHODS: Participants (n=21, age=22.0±2.7 yrs, ht=66.4±2.9 in, wt=166.3±26.5 lbs) walked on a treadmill at three mph for 10 min while interfaced with an oxygen analyzer and APDM Inertial Measurement Unit (IMU) gait sensors without unweighting (NU), unweighted with a intermediate tension bungee …
Psychological And Physiological Effects Of Acute Cold Exposure Following Bouts Of Intense Exercise, Blake E. Wright, Leroy Bolden, Cory Smith, Andrew Gallucci
Psychological And Physiological Effects Of Acute Cold Exposure Following Bouts Of Intense Exercise, Blake E. Wright, Leroy Bolden, Cory Smith, Andrew Gallucci
International Journal of Exercise Science: Conference Proceedings
Background: Thermal strain results from extreme temperature exposures and is common among athletes that create conflicting physiological responses. However, little is known on how rapidly shifting the body from a heat-dissipating to a heat-conserving state impacts human physiologically and psychologically. Purpose: To assess the physiological and psychological effects of thermal strain on collegiate football players. Methods: 18 Division I collegiate football players (19.72y ± 1.36) participated in the study during one full contact practice in the spring semester. Participants reported to the athletic training room 15-minutes before practice to have a Zephyr sensor placed in the midaxillary line. Participants also …
Which Sex Hormone Markers Best Predict Bone Mineral Density? A Nhanes 2013-2014 Analysis, Katarina Kozakova, Elina Satlik, Sarah E. Little-Letsinger
Which Sex Hormone Markers Best Predict Bone Mineral Density? A Nhanes 2013-2014 Analysis, Katarina Kozakova, Elina Satlik, Sarah E. Little-Letsinger
International Journal of Exercise Science: Conference Proceedings
Osteoporosis is a silent disease that is typically not diagnosed until after a fracture has occurred. Identifying biomarkers routinely collected by physicians can serve as a simple and effective screening approach to detect osteoporosis before debilitating fractures occur. The ratio of total estradiol to total testosterone (ET x10)/TT has been proposed as a biomarker associated with bone mineral density (BMD). To further improve predictive power, we propose a ratio of estradiol to free testosterone (ET/TF), rather than total, to account for the difference in hormone bioavailability. PURPOSE: The present analysis compares the association …
Dehydration Alters Pbmc Inflammatory Propensity That Impair Myoblast Fusion: An Ex-Vivo Approach, Casey Appell, Trinity N. Domonkos, Karina Olvera, Sarah Walper, Christian J. Hoebelheinrich, Larry Munger, Danielle Levitt, Hui-Ying Luk
Dehydration Alters Pbmc Inflammatory Propensity That Impair Myoblast Fusion: An Ex-Vivo Approach, Casey Appell, Trinity N. Domonkos, Karina Olvera, Sarah Walper, Christian J. Hoebelheinrich, Larry Munger, Danielle Levitt, Hui-Ying Luk
International Journal of Exercise Science: Conference Proceedings
Muscle recovery from damage requires satellite cell activation to myoblasts and subsequent myoblast fusion, processes that are influenced, by immune-muscle crosstalk. In this context, the inflammatory propensity of peripheral blood mononuclear cells (PBMCs), may alter myoblast fusion. In vitro studies have shown that hyperosmotic stress alters PBMC inflammatory potency. However, the effect of dehydration (elevated plasma osmolality) on PBMC inflammatory propensity, and its impact on myoblast fusion is unknown. PURPOSE: To determine the effect of dehydration following muscle damage on PBMC inflammatory propensity to alter myoblast fusion using an ex-vivo model. METHODS: Active men (n=4, 19±1yr, 173.4±7.6cm, 84.3±11.6kg) …
The Effect Of 8-Weeks Of Exercise Training On Metabolic Health And Continuous Glucose Monitoring Metrics Among Insulin Sensitive And Resistant Adults, Joshua Labadah, Adrian Ordaz, Seyram Azagloh, Richard Vazquez, Jehu N. Apaflo, Sudip Bajpeyi
The Effect Of 8-Weeks Of Exercise Training On Metabolic Health And Continuous Glucose Monitoring Metrics Among Insulin Sensitive And Resistant Adults, Joshua Labadah, Adrian Ordaz, Seyram Azagloh, Richard Vazquez, Jehu N. Apaflo, Sudip Bajpeyi
International Journal of Exercise Science: Conference Proceedings
An elevated homeostatic model assessment of insulin resistance index (HOMA-IR) ≥ 2.5 is commonly used to classify insulin resistance (IR). IR is a well-established precursor to the development of diabetes and other metabolic diseases. Exercise is a well-established intervention for the improvement of metabolic health but the comparison of the effect of exercise among IR and insulin sensitive (IS) non-diabetic adults with the use continuous glucose monitoring has not been adequately studied. PURPOSE: To determine if non-diabetic individuals with insulin resistance have attenuated improvement in exercise-induced improvement in metabolic health and CGM metrics of glycemic control in comparison to …
Pre-Exercise Positive Mood Affect Predicts Blunted Lymphocyte Mobilization And Faster Recovery After Acute Exercise (Caare Secondary Analysis), Arman M. Rasti, Melissa Markofski
Pre-Exercise Positive Mood Affect Predicts Blunted Lymphocyte Mobilization And Faster Recovery After Acute Exercise (Caare Secondary Analysis), Arman M. Rasti, Melissa Markofski
International Journal of Exercise Science: Conference Proceedings
Acute exercise mobilizes lymphocytes and monocytes into circulation and alters cortisol, but it is not known whether psychological states before exercise shape immune responses in adults, or whether cortisol mediates any associations between mood and immune mobilization. PURPOSE: To test whether baseline affect and total mood disturbance (TMD) predict lymphocyte/monocyte mobilization and 1-h recovery after aerobic training (AT) and resistance training (RT), whether they predict cortisol responses, and whether cortisol mediates mood–immune links. METHODS: This is a secondary analysis of data from a randomized, complete crossover study in which adults completed both an AT and a RT session. Composite affect …
Mediating Factors Of Exercise Identity And Perceived Stress, Cydni M. Miller, Kameron Sanders, Jada Mendoza, Brooke Walsh, Jasmine Hamilton
Mediating Factors Of Exercise Identity And Perceived Stress, Cydni M. Miller, Kameron Sanders, Jada Mendoza, Brooke Walsh, Jasmine Hamilton
International Journal of Exercise Science: Conference Proceedings
As we continue to traverse influences of the post COVID-19 public health environment, there have been noted effects associated with mental and physical health. Stress and anxiety can lead to burnout and have negative physical effects on the body. Research indicated that increases in exercise participation may reduce burnout among college students (Chen et al., 2022). For college students, access to resources such as recreational centers may help to alleviate the negative effects of anxiety. Physical activity has also been shown to improve the relationship between self-image and esteem (Gan & Jiang, 2024). PURPOSE: This study sought to explore the …
Effects Of Palm Cooling On Anaerobic Cycling Performance, Bronwyn R. Banks
Effects Of Palm Cooling On Anaerobic Cycling Performance, Bronwyn R. Banks
International Journal of Exercise Science: Conference Proceedings
PURPOSE: To determine if palm cooling had a positive effect on repeated bouts of Wingate Anaerobic Test (WAnT). METHODS: Nineteen college students (18 – 23 years of age) attended a randomized crossover designed trail to perform three bouts WAnT (lower body) test which consisted of 30s bouts. During the control (CON) trial sessions, the resistance was dropped to 7.5% of body mass (kg) at the start of the 30 second(s) all-out sprint, followed by 3 min cycling at 20W. During the cooling intervention (PC) session, a palm cooling (Apex Cooling) device was used between bouts. Participants were instructed to hold …
Examining The Association Between Lower-Body Bone Mineral Composition And Ground Reaction Force In American Football Players, Fatima Alonso, Michael Oldham, Vipa Bernhardt, Brian Jones, Bronwyn Banks, Joshua Nate, Karla Pegueros, Nikita Strogalev, Ouays Bakcha, Stephanie Tapia, Veronika Kramarenko, Dylan T. Sabo
Examining The Association Between Lower-Body Bone Mineral Composition And Ground Reaction Force In American Football Players, Fatima Alonso, Michael Oldham, Vipa Bernhardt, Brian Jones, Bronwyn Banks, Joshua Nate, Karla Pegueros, Nikita Strogalev, Ouays Bakcha, Stephanie Tapia, Veronika Kramarenko, Dylan T. Sabo
International Journal of Exercise Science: Conference Proceedings
Mechanical loading is a primary determinant of skeletal adaptation, particularly in collision-based sports such as American football. PURPOSE: The purpose was to examine the relationship between lower body bone mineral characteristics and unilateral ground reaction force production in male athletes. The study was conducted to examine whether force-production capacity is related to skeletal mineralization and limb asymmetry. METHODS: One hundred and ten American football athletes participated in the study. Lower body bone mineral composition (BMC), lean mass index, and limb asymmetry were measured using dual-energy X-ray absorptiometry (DXA). A unilateral vertical jump test was performed using the DARI Motion ® …
Neuromuscular And Body Composition Associations With Estradiol Throughout The Lifespan, Braden A. Wright, Tomas Chapman-Lopez, Micheal Luera, Jaci Kelly, Christine M. Florez, Lem Taylor, Darryn Willoughby, Mandy E. Parra
Neuromuscular And Body Composition Associations With Estradiol Throughout The Lifespan, Braden A. Wright, Tomas Chapman-Lopez, Micheal Luera, Jaci Kelly, Christine M. Florez, Lem Taylor, Darryn Willoughby, Mandy E. Parra
International Journal of Exercise Science: Conference Proceedings
Many studies have sought to understand estradiol withdrawal throughout the female lifecycle and its role in the brain and cognitive function, while little is known about its specific role at the neuromuscular junction and body composition. PURPOSE: The purpose of this study is to examine estradiol as a predictor of DXA- derived fat-free mass (FFM), lower body muscle quality (MQ), total fat mass (FM), and maximal muscle activation (EMGRMS). METHODS: This is a secondary analysis from an existing data set using a cross-sectional design of eleven untrained women (pre-menopausal, n=6; age=23.3±4.3 years; height=160.6±8.3 cm; weight=60.5±11.6 kg; …
Delayed Recovery Of Force Production In A Dehydrated State Following Muscle Damage, Amar Vaela, Casey Appell, Trinity N. Domonkos, Karina Olvera, Sarah Walper, Christian Hoebelheinrich, Seth Bernardino, Jalyn Dunlap, Larry Munger, Hui-Ying Luk
Delayed Recovery Of Force Production In A Dehydrated State Following Muscle Damage, Amar Vaela, Casey Appell, Trinity N. Domonkos, Karina Olvera, Sarah Walper, Christian Hoebelheinrich, Seth Bernardino, Jalyn Dunlap, Larry Munger, Hui-Ying Luk
International Journal of Exercise Science: Conference Proceedings
Following eccentric exercise-induced muscle damage, knee extensor strength is substantially reduced but typically recovers toward baseline within 48-72 hours in healthy adults. Previous studies have not determined whether hydration status influences recovery following muscle damage, despite evidence that a 46.4% of university students are dehydrated, and 59% with inadequate water intake. Suggesting a high likelihood of suboptimal hydration at baseline. Although dehydration has been shown to negatively impact force production, its influence on post-exercise damage remains unclear. However, it is unclear whether dehydration alters the recovery of force production following muscle-damaging exercise. PURPOSE: To determine the effect of dehydration …
Late Life Aerobic Exercise Mitigates Age-Related Declines In Physical Function In Male And Female Rats, Dillon R. Harris, Quinten W. Pigg, Daniela S. Inoue, Andreea Trache, Mariana Janini Gomes
Late Life Aerobic Exercise Mitigates Age-Related Declines In Physical Function In Male And Female Rats, Dillon R. Harris, Quinten W. Pigg, Daniela S. Inoue, Andreea Trache, Mariana Janini Gomes
International Journal of Exercise Science: Conference Proceedings
While lifelong aerobic exercise (AE) is touted to counteract various age-related health detriments, the efficacy of AE initiated late in life remains unknown. PURPOSE: To investigate whether late life AE can reverse age-related physical and muscle decline in rats. METHODS: 52 male (M; n=22) and female (F; n=24) Fischer 344 rats (3- and 21-months) were randomly assigned in sedentary (SED) or exercise (EX) groups, composing 4 experimental groups per sex: Young SED (n=11; 6M, 5F) Young EX (n=12; 6M, 6F), Old SED (n=12; 5M, 7F) and Old EX (n=12; 6M, 6F). Prior to and after training, all animals underwent a …
Goal Versus Win Orientation On Maximal Grip Strength, Cole Thompson, Wyatt Wilson, Casi Helbig
Goal Versus Win Orientation On Maximal Grip Strength, Cole Thompson, Wyatt Wilson, Casi Helbig
International Journal of Exercise Science: Conference Proceedings
Competition is a major factor in human effort and performance. In discussing the competitive aspects of achievement, there are two major orientations: goal orientation, involving personal improvement and mastery, and win orientation, in which the competitive endeavor resides in outperforming others and winning. PURPOSE: The purpose of this study was to compare the effects of goal orientation and win orientation on maximal grip strength performance. METHODS: Twenty-nine college students participated in this study. Each subject performed a pretest with one maximal voluntary contraction (MVC) testing grip strength using a calibrated hand dynamometer for 3-5 seconds to achieve baselines. …
The Influence Of Music And Social Interaction On Physiological Responses And Perceived Enjoyment During Hiit And Bfr Performance, Martha Villanueva, Gabriela Segura, Francisco Almaguer, Marco Arriaga, Ulku Karabulut, Sue Anne Chew, Murat Karabulut
The Influence Of Music And Social Interaction On Physiological Responses And Perceived Enjoyment During Hiit And Bfr Performance, Martha Villanueva, Gabriela Segura, Francisco Almaguer, Marco Arriaga, Ulku Karabulut, Sue Anne Chew, Murat Karabulut
International Journal of Exercise Science: Conference Proceedings
While exercise is essential for health, motivational barriers often limit regular participation in exercise. This study investigated strategies to enhance exercise engagement by examining the impact of music and social interaction. PURPOSE: To evaluate the effects of music and social interaction on hemodynamic, perceptual, and neuroendocrine responses during high-intensity interval training (HIIT) and blood flow restriction (BFR) training. METHODS: Twenty recreationally active adults (age=22.5 ± 2.3 years) completed a randomized within-participant study involving five sessions: a familiarization, individual HIIT (HIIT-I), group HIIT (HIIT-G), individual BFR (BFR-I), and group BFR (BFR-G). Sessions consisted of whole-body exercises. Researchers recorded heart …
Equine Assisted Services Versus Horse Simulator Activity For Functional Ability In Parkinson's Disease, Ryen Browning, Lauren Crabb, Vanessa Mikan
Equine Assisted Services Versus Horse Simulator Activity For Functional Ability In Parkinson's Disease, Ryen Browning, Lauren Crabb, Vanessa Mikan
International Journal of Exercise Science: Conference Proceedings
Parkinson’s disease (PD) is a progressive neurodegenerative disorder associated with impairments in balance, mobility, and postural control, leading to increased fall risk and reduced functional independence. Rhythmic, movement-based interventions benefit motor function in PD. Horse simulator devices, such as the Miracolt, replicate the multidimensional pelvic motion of horseback riding and may provide a safe and accessible therapeutic option. PURPOSE: To examine the effects of a short-term Miracolt horse simulator intervention on balance and functional mobility in individuals with PD. METHODS: Individuals with a clinical diagnosis of PD were recruited from community-based organizations. Participants completed three consecutive 20-minute sessions using the …
Compensatory Reserve Measurement: A Tool To Assess Skeletal Muscle Fatigue, Claudette Joe, Antoine Ferguson, Khizra Khan, Barsha Khadka, Victor Convertino Ph.D., Joni A. Mettler Ph.D.
Compensatory Reserve Measurement: A Tool To Assess Skeletal Muscle Fatigue, Claudette Joe, Antoine Ferguson, Khizra Khan, Barsha Khadka, Victor Convertino Ph.D., Joni A. Mettler Ph.D.
International Journal of Exercise Science: Conference Proceedings
Compensatory reserve measurement (CRM) is a metric of all physiological mechanisms that sustain adequate oxygen perfusion to working muscles. We hypothesized that CRM would track muscular fatigue. PURPOSE: To assess patterns of CRM and muscular torque output during repeated maximal effort fatiguing muscular contractions and during recovery and to examine the relationship between CRM and torque output. METHODS: Twenty-nine healthy physically active participants (age: 21.9 ± 0.4 yr) performed a muscular fatigue task consisting of 4 sets (S) x 20 repetitions (R) of maximal isometric knee extension contractions on an isokinetic dynamometer. Each contraction was held 10s with a …
Delay In Increased Muscle Cross Sectional Area After Muscle Damage While Dehydrated, Sarah Walper, Casey Appell, Trinity Domonkos, Karina Olvera, Seth Bernardino, Jalyn Dunlap, Larry Munger, Hui-Ying Luk
Delay In Increased Muscle Cross Sectional Area After Muscle Damage While Dehydrated, Sarah Walper, Casey Appell, Trinity Domonkos, Karina Olvera, Seth Bernardino, Jalyn Dunlap, Larry Munger, Hui-Ying Luk
International Journal of Exercise Science: Conference Proceedings
When muscles are damaged, the tears in the muscle fibers triggers an immune response and muscles experience inflammation. Inflammation increases WBC in the muscles to repair the micro tears. Muscle inflammation can be assessed by measuring the cross-sectional area (CSA) via ultrasound images. PURPOSE: To examine the effect of hydration status during recovery on muscle swelling after muscle damaging exercise. METHODS: Six recreationally active men (19 ± 1yr, 169.8 ± 8.3cm, 79.5 ± 11.7kg, Lean mass 58.6 ± 13.0kg, %body fat 28.3 ± 6.5%) completed two bouts of an identical muscle damaging exercise (DAM-EX) under a hydrated state and underwent …
Exercise Training Attenuates Cd8 T Cell Exhaustion, But Not Glucose Intolerance, Following Weight Cycling, Okechukwu K. Oforka, Emily C. Lavoy, Heather L. Caslin
Exercise Training Attenuates Cd8 T Cell Exhaustion, But Not Glucose Intolerance, Following Weight Cycling, Okechukwu K. Oforka, Emily C. Lavoy, Heather L. Caslin
International Journal of Exercise Science: Conference Proceedings
Obesity increases the risk of glucose intolerance and CD8 T cell exhaustion, which indicates an impaired immune function. While weight loss mitigates these risks, most individuals regain weight (weight cycling), which worsens both conditions. Exercise training protects against glucose intolerance and attenuates T cell exhaustion, but its protective role during weight cycling remains unclear. PURPOSE: The purpose of this study was to examine whether exercise training can prevent glucose intolerance and attenuate CD8 T cell exhaustion following weight cycling in mice. METHODS: Forty-eight C57Bl/6 mice were used for the study. Lean and obese groups were elicited using diet. …
Differences In Sport Performance Anxiety Between Male And Female Competitive Bodybuilders, Christian O. Quintero, Samantha S. Dardaman, Stephen E. Rowden, Rafael E. Cachutt, Scott B. Martin
Differences In Sport Performance Anxiety Between Male And Female Competitive Bodybuilders, Christian O. Quintero, Samantha S. Dardaman, Stephen E. Rowden, Rafael E. Cachutt, Scott B. Martin
International Journal of Exercise Science: Conference Proceedings
In the sport of bodybuilding, high pressures for perfect performances cultivate extreme levels of restriction and discipline in the domains of eating behaviors, physical training, and aesthetic presentation. These pressures potentially put competitive bodybuilders at risk for anxiety. However, research regarding performance anxiety remains limited in bodybuilding literature. PURPOSE: The aim of this study is to examine the differences in sport performance anxiety between male and female bodybuilders. METHODS: Competitive bodybuilders (N = 283; 106 females, 176 males) between the ages of 19 and 68 years old (M = 34.75, SD = 9.83) were recruited to …
Gender And Geographic Differences In Grip Strength And Static Balance Among Special Olympics Athletes, Madeline Gose, Phil Esposito
Gender And Geographic Differences In Grip Strength And Static Balance Among Special Olympics Athletes, Madeline Gose, Phil Esposito
International Journal of Exercise Science: Conference Proceedings
Individuals with intellectual and developmental disabilities often experience deficits in muscular strength and balance, which can impact functional independence, injury risk, and sport participation. Grip strength and balance are core components of the Special Olympics FUNfitness screening program and serve as practical indicators of overall functional health. PURPOSE: The purpose of this study is to examine gender (male/female) and geographic region (Africa, Asia/Pacific, Europe, Middle East, North America, South America) based differences in grip strength and balance performance among Special Olympics Athletes. METHODS: A retrospective secondary data analysis was conducted using FUNfitness data collected between 2019-2024. Eyes-open balance performance and …
Speg Activation To Regulate Sarcoplasmic Reticulum In Muscle Disease, Lauren Nguyen, Sara Kondamadugula, Ting Chang, Susan Hamilton
Speg Activation To Regulate Sarcoplasmic Reticulum In Muscle Disease, Lauren Nguyen, Sara Kondamadugula, Ting Chang, Susan Hamilton
International Journal of Exercise Science: Conference Proceedings
Sarcoplasmic reticulum (SR) Ca2+ leak contributes to many muscle diseases, including Duchenne Muscle Dystrophy (DMD) and Malignant Hyperthermia (MH) with enhanced sensitivity to heat stroke. Recently, we demonstrated that the striated muscle preferentially expressed protein kinase, SPEG, decreases SR Ca2+ leak by phosphorylating Ser2902 on the Ca2+ release channel (also known as the ryanodine receptor 1, RYR1). While SPEG is activated in response to increased leak, the mechanisms of this activation are unknown. In addition, this compensatory mechanism is overwhelmed in the disease states associated with excessive Ca2+ leak. Increasing SPEG activation could potentially be beneficial …
The Role Of Mkp-5 In Mitochondrial Protection Against Doxorubicin-Induced Cardiotoxicity, Dziedzorm Wormenor, Kisuk Min
The Role Of Mkp-5 In Mitochondrial Protection Against Doxorubicin-Induced Cardiotoxicity, Dziedzorm Wormenor, Kisuk Min
International Journal of Exercise Science: Conference Proceedings
Doxorubicin (DOX) is a highly effective chemotherapeutic drug used to treat various cancers. Unfortunately, the clinical application of DOX is limited by its cardiotoxic effects, which can result in heart failure in cancer patients. PURPOSE: This study aims to investigate whether MAP kinase phosphatase-5 (MKP-5) deficiency promotes mitochondrial protection against doxorubicin-Induced cardiotoxicity (DIC). METHODS: To determine the role of MKP-5 in DIC, DOX was administered intraperitoneally to wild-type (Mkp-5+/+) and MKP-5-deficient (Mkp-5-/-) mice. Following DOX administration, the survival rate was assessed, and transcription factors involved in mitochondrial biogenesis in cardiac muscle were analysed through qRT-PCR or immunoblotting. RESULTS …
Surviving The Cure: Modeling The Long-Term Consequences Of Chemotherapy, Rachel R. Chiella, Jaden Wells, Sajedeh B. Tabrizi, Savannah V. Rauschendorfer, Cory Dungan, Michael P. Wiggs
Surviving The Cure: Modeling The Long-Term Consequences Of Chemotherapy, Rachel R. Chiella, Jaden Wells, Sajedeh B. Tabrizi, Savannah V. Rauschendorfer, Cory Dungan, Michael P. Wiggs
International Journal of Exercise Science: Conference Proceedings
Due to advances in treatment protocols, survival rates for childhood cancers have improved significantly over the past several decades, with five-year survival now reaching 85%. However, survivorship often comes at a cost, as exposure to intensive chemotherapy impairs skeletal muscle health, reducing quality of life and increasing the risk of early mortality. The CHOP regimen, comprising cyclophosphamide, doxorubicin, vincristine, and prednisone, is a backbone combination used in the treatment of childhood non-Hodgkin lymphoma. Previous data from our lab demonstrates that CHOP causes acute and reductions in growth and muscle size in juvenile mice, yet data on long-term outcomes remain limited. …
Age And Cognitive Load Alter Joint Work Distribution And Postural Stability During Single Limb Support, Emery E. Nuner, Telicia Appleton, Ibrahim Burghul
Age And Cognitive Load Alter Joint Work Distribution And Postural Stability During Single Limb Support, Emery E. Nuner, Telicia Appleton, Ibrahim Burghul
International Journal of Exercise Science: Conference Proceedings
Age‑related declines in neuromuscular control increase fall risk during single‑limb stance, especially under cognitive load. Altered joint‑work distribution and reduced coordination precision may contribute to this instability, yet dual‑task effects on these mechanisms remain unclear. PURPOSE: To examine age‑related differences in joint eccentric work, inter‑joint coordination (FWHM), and postural stability during single‑limb support under normal and cognitive dual‑task conditions. METHODS: Eight adults (Young: n=4, 22 ± 2 y; Older: n=4, 73 ± 5 y) performed ~3 s of single‑limb support on a force plate following a crossover step under (1) Normal and (2) Cognitive conditions. Under the Cognitive condition, participants …