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5,286 full-text articles. Page 7 of 163.

Patellofemoral Syndrome, Prystyn M. Covington 2019 Vanguard College Preparatory School

Patellofemoral Syndrome, Prystyn M. Covington

International Journal of Exercise Science: Conference Proceedings

CLINICAL PRESENTATION & EXAM: Patellofemoral syndrome is an aching pain at the front of the knee and is common in athletes. Patellofemoral syndrome occurs due to many factors such as overuse (repetitive stress on the knee), trauma to the knee, surgery, and weak muscles. Surgery to the knee using the patellar tendon as a graft to fix the anterior cruciate ligament greatly increases the risk of pain. Many factors play a role in increasing the risk of developing patellofemoral syndrome such as sports, age, and gender. Most people who develop patellofemoral syndrome tend to be adolescents or young adults. Older people ...


Fluctuations In Blood Biomarkers Of Head Trauma In Ncaa Men’S Soccer Athletes Over The Course Of A Season, Javier A. Zaragoza, Andreas Kreutzer, Jonathan Oliver, Anthony Joseph Anzalone, Tori Conger, David A. Julovich, James Hall, Sid O'Bryant, Stacie Urbina, Lemuel W. Taylor IV 2019 University of Mary Hardin-Baylor

Fluctuations In Blood Biomarkers Of Head Trauma In Ncaa Men’S Soccer Athletes Over The Course Of A Season, Javier A. Zaragoza, Andreas Kreutzer, Jonathan Oliver, Anthony Joseph Anzalone, Tori Conger, David A. Julovich, James Hall, Sid O'Bryant, Stacie Urbina, Lemuel W. Taylor Iv

International Journal of Exercise Science: Conference Proceedings

Repetitive subconcussive impacts to the head are commonplace in soccer. The ability to detect the extent of neurological injury due to these impacts over the course of a season is paramount. PURPOSE: The purpose of the current study was to examine alterations in blood biomarkers of head injury over the course of a soccer season. METHODS: Sixteen National Collegiate Athletic Association (NCAA) male soccer athletes participated in weekly blood sampling throughout an 18-week season. Athlete statistics were received from the coaches post-season. Serum samples were stored at -80°C until analysis for Tau and Neurofilament Light polypeptide (NFL) using a ...


Attitudes And Re-Enrollment Intentions To Participate In Youth Soccer Among Parents, Coaches, And Players In Central Texas, Ashleigh Johnson, Anna Wilkinson, Harold W. Kohl III 2019 University of Texas Health Science Center at Houston, School of Public Health in Austin

Attitudes And Re-Enrollment Intentions To Participate In Youth Soccer Among Parents, Coaches, And Players In Central Texas, Ashleigh Johnson, Anna Wilkinson, Harold W. Kohl Iii

International Journal of Exercise Science: Conference Proceedings

Physical activity in youth declines with age, which may be due in part to decreased sports participation. However, few studies include perspectives from parents/coaches as well as players when examining reasons for participation and dropout from organized sports such as soccer. PURPOSE: To describe and compare soccer-related attitudes and intention to re-enroll among parents/legal guardians, coaches, and players at a youth soccer program in Central Texas. METHODS: Parents (n=152), coaches (n=55), and players (n=28) completed an online survey in November-December 2018. Participants were eligible if they 1) coached and/or had children aged 10-17 years ...


The Efficacy Of Wristband Activity Trackers During Vigorous Exercise, Jessica McDowell, Alexandrea Swize, Jenna Gerber, Reilly Avalos, Kyle Reinen, Shelly Weise 2019 Angelo State University

The Efficacy Of Wristband Activity Trackers During Vigorous Exercise, Jessica Mcdowell, Alexandrea Swize, Jenna Gerber, Reilly Avalos, Kyle Reinen, Shelly Weise

International Journal of Exercise Science: Conference Proceedings

Patients and clinicians rely on activity trackers to monitor heart rate, calorie expenditure, and steps during training and interventions. However, the efficacy of activity trackers during vigorous exercise, is not widely studied. PURPOSE: The objective of this study was to compare the effectiveness of activity trackers during vigorous activity. METHODS: Nineteen participants completed twenty minutes of vigorous intensity exercise by running or incline walking on a treadmill. Measurement devices worn during the testing period included two wristband activity trackers (Garmin (G) Forerunner 735xt™ and Fitbit (F) Surge™) and industry standard devices: a pedometer(P), Polar™ HR Chest Strap and Cosmed ...


Dynamic Graded Muscle Exercise In Sedentary Metabolic Syndrome Women; Effects On Cardiac Workload, Abraham Gomez, Lorenzo Juarez, Ariel Gomez, Klaudia Szych, Andi Johnson, Jerene Yazzie, Matthew A. Barlow PhD 2019 Eastern New Mexico University - Main Campus

Dynamic Graded Muscle Exercise In Sedentary Metabolic Syndrome Women; Effects On Cardiac Workload, Abraham Gomez, Lorenzo Juarez, Ariel Gomez, Klaudia Szych, Andi Johnson, Jerene Yazzie, Matthew A. Barlow Phd

International Journal of Exercise Science: Conference Proceedings

Metabolic syndrome (MetSyn) individuals presented declining sensitivity to insulin (p=.0201) as calculated by insulin sensitivity index (ISI-60) measurement. The young women categorized as MetSyn were previously found to have significantly lower (ISI-60) from healthy controls (Gomez, 2018), and had higher percent body fat (p< .05), diminished HDL (p< .05), and higher expenditure of Kcals (p=.04) compared to controls as measured by 7 day accelerometer. Cardiovascular modification is hypothesized to involve progressive dysfunction of the insulin mediated AKT/PKB eNOS pathway. PURPOSE: The purpose of this study is to identify if daily sedentary activity is associated with myocardial workload in the development of the metabolic disorder. We hypothesized metabolic syndrome individuals Rate Pressure Product (RPP) would be at elevated at rest and through various workloads of small muscle exercise. METHODS: We compared daily activity to heart ...


The Effect Of Personality And Motivation On Athletic Performance, Erika R. Dubros 2019 Southwestern University

The Effect Of Personality And Motivation On Athletic Performance, Erika R. Dubros

International Journal of Exercise Science: Conference Proceedings

Motivation is key for athletes to perform at their peak performance. However, not all individuals are motivated in the same way. PURPOSE: The purpose of the current study is to determine the effect of participant’s personality traits and applied intrinsic and extrinsic motivation on the performance of a high intensity and low intensity physical task. METHODS: Fourteen participants (8 women, 6 men), with a mean (sd) age of 20.14 (0.91) yrs, completed the Ten-Item Personality Inventory to determine personality types (neuroticism, conscientiousness). Participants then performed in a random order, a high intensity physical activity (pacer test) and ...


Cardiorespiratory Responses During Body Weight Supported Treadmill Exercise, Shana John, Callie Sun, Kyle D. Biggerstaff 2019 Texas Woman's University

Cardiorespiratory Responses During Body Weight Supported Treadmill Exercise, Shana John, Callie Sun, Kyle D. Biggerstaff

International Journal of Exercise Science: Conference Proceedings

Treadmills which partially support body weight (BWST) are increasingly used to allow weight bearing treadmill exercise to be performed during rehabilitation. PURPOSE: This investigation determined cardiorespiratory responses during BWST exercise. METHODS: Participants (n=15; age=22.1±2.1yrs; BMI=27.4±5.9kg/m2) volunteered to perform two bouts of treadmill walking on a standard treadmill (ST) and a BWST with 25% of body weight supported by the BWST. Each trial consisted of three 6 minute stages at 2.8mph and 2%, 5%, and 8% grade with a two minute warm-up and cool-down at 2.0 mph and ...


Do Implantable, Progestin Only Contraceptives Alter The Bone Response To Unloading?, Ximena S. Vargas, Heather CM Allaway, Sarah Little, Susan Bloomfield 2019 Texas A&M University, College Station

Do Implantable, Progestin Only Contraceptives Alter The Bone Response To Unloading?, Ximena S. Vargas, Heather Cm Allaway, Sarah Little, Susan Bloomfield

International Journal of Exercise Science: Conference Proceedings

Hormonal contraception is routinely used by premenopausal women, including female astronauts, to suppress reproductive function. Long-acting reversible contraceptives (LARC-progestin only) have become a common choice amongst women due to their practicality. PURPOSE: Understand the interaction of unloading and LARC on bone health. We hypothesize that the decrease in bone mineral density (BMD) and cortical thickness of the tibia associated with hindlimb unloading (HU) will be lessened by LARC implantation. METHODS: Virgin female Sprague-Dawley rats (n=26; 4-mo-old) were singly housed and randomly assigned to placebo (PL) and LARC groups, via a slow-release etonogestrel pellet (0.00 vs. 0.09 vs ...


The Effects Of Different Intensities Of Resistance Training On Hemodynamics, Edna Giselle Valadez Ortiz, Darian Gonzalez, Lynda Rosas, Akaela Rae Vidaña, Elisa Orozco 2019 University of Texas Rio Grande Valley

The Effects Of Different Intensities Of Resistance Training On Hemodynamics, Edna Giselle Valadez Ortiz, Darian Gonzalez, Lynda Rosas, Akaela Rae Vidaña, Elisa Orozco

International Journal of Exercise Science: Conference Proceedings

PURPOSE: The purpose of this study was to analyze the effects of different resistance training intensities on blood pressure (BP) and heart rate (HR) responses. METHODS: 12 males and 12 females (19-28 age) participated in the study (5 sessions). On the first day, initial screening, anthropometric measures, cycle ergometer seat height, leg extension/leg curl machine setting, and familiarization with testing procedures were completed. On the second day, one-repetition maximum (1RM) testing was completed in 2 trials for each machine, starting with 10 min warm up on the cycle ergometer. Following general warm up, subjects performed specific warm up at ...


Spatiotemporal Parameters Of Gait In Active Older Adults, Suzanna Buckingham, Palma Rodriguez-Enriquez, Shana John, Roselle-Mae Robles, Marco Avalos, Brandon R. Rigby 2019 Texas Woman's University

Spatiotemporal Parameters Of Gait In Active Older Adults, Suzanna Buckingham, Palma Rodriguez-Enriquez, Shana John, Roselle-Mae Robles, Marco Avalos, Brandon R. Rigby

International Journal of Exercise Science: Conference Proceedings

Spatiotemporal parameters of gait can be defined as the time and space characteristics of an individual’s pattern of walking. Gait patterns often change as a result of aging, accompanied by changes in these parameters. PURPOSE: To analyze various spatiotemporal parameters of gait in active older adults and to compare them to known parameters in healthy older adults. METHODS: Spatiotemporal parameters were collected using a timing walkway (GAITRite®, Franklin, NJ). Twenty-three recreationally active participants (9 males and 14 females), age 67.7 ± 9.1 years, who participated in at least 150 min/week of physical activity, were recruited from local ...


Education And Use Of The Lelli Test In The Clinical Setting, Nathalie de la Torre, Eduardo Escobar 2019 Tarleton State University

Education And Use Of The Lelli Test In The Clinical Setting, Nathalie De La Torre, Eduardo Escobar

International Journal of Exercise Science: Conference Proceedings

The knee ligament most susceptible to injury is the anterior cruciate.²˒⁵˒⁸ Detection of a ruptured ACL tear is pivotal in the course of injury care and management process.⁸ The gold reference standard for diagnosing an ACL tear has been arthroscopic evaluation.²˒⁵ However, a MRI may be used as an alternate because it is non-invasive, and it has a sensitivity and specificity of 98% and 94%.²˒⁵ Before the gold reference standard is used, a combination of physical examinations must be performed. The three physical examinations chosen by surgeons because of the exams’ highly ...


Effect Of Wheelchair Transfer Surface Firmness On Acceleration Of The Torso, Cassandra Chang, Scott P. McLean, Edward Merritt, Laura Vides 2019 Southwestern University

Effect Of Wheelchair Transfer Surface Firmness On Acceleration Of The Torso, Cassandra Chang, Scott P. Mclean, Edward Merritt, Laura Vides

International Journal of Exercise Science: Conference Proceedings

Moving from a surface that provides adequate support can affect the quality of wheelchair transfers such that softer surfaces, which are less supportive may compromise these movements. PURPOSE: This research examined the effect of surface firmness on wheelchair transfer performance. METHODS: A convenience sample of fourteen healthy, able-bodied college students, who’s average height, weight and age were 76kg, 167 cm, and 20.5 years, respectively, participated in this study. Participants were taught a basic wheelchair transfer. A wireless triaxial accelerometer was positioned on the dorsal surface of the trunk at approximately the mid-thoracic level. Participants performed five trials under ...


Effects Of A 28-Day Carbohydrate-Restricted Diet On Metabolic And Performance Markers In Professional Firefighters, Andrew E. Gonzalez, Hunter S. Waldman, Matthew J. McAllister 2019 Texas State University

Effects Of A 28-Day Carbohydrate-Restricted Diet On Metabolic And Performance Markers In Professional Firefighters, Andrew E. Gonzalez, Hunter S. Waldman, Matthew J. Mcallister

International Journal of Exercise Science: Conference Proceedings

PURPOSE:Firefighters (FF) experience acute physiological and psychological stressors such as disturbed sleep patterns, frequent snacking, smoke exposure, and intense physical exertion, likely contributing to a significant risk for cardiovascular disease (CVD) and sudden cardiac death. Additionally, FF have high obesity prevalence rates and low cardiovascular fitness levels. Proper dietary and exercise regime interventions may decrease CVD risk. Carbohydrate-restricted diets (CRD) may benefit FF health through increased metabolic flexibility, decreased fat mass, and improved body composition, without negatively affecting the strength and aerobic performance. METHODS:Twenty-one healthy, male professional FF recruited from local fire departments underwent 9 testing sessions: Trials ...


The Effects Of Whole-Body Vibration And Weighted Vest On Vertical Jump Power And Flexibility, Oscar Gomez Delgado, Luis Macias, Jonathan Gonzalez, Murat Karabulut 2019 The University of Texas at Rio Grande Valley

The Effects Of Whole-Body Vibration And Weighted Vest On Vertical Jump Power And Flexibility, Oscar Gomez Delgado, Luis Macias, Jonathan Gonzalez, Murat Karabulut

International Journal of Exercise Science: Conference Proceedings

PURPOSE: The purpose of this study was to assess the effects of the combination of weighted vest and full body vibration platform on jump height and flexibility. METHODS: A total of 29 subjects (15 males and 14 females) completed the study. Upon completion of the paperwork, anthropometric measurements were recorded, and the subjects were familiarized with the protocol. The four randomized conditions were as follows: Combination of whole-body vibration platform and weighted vest (WBV+WV), whole-body vibration platform (WBV), weighted vest (WV), or body weight only (BW). Each experimental session was preceded by a 5-minute warmup on a cycle ergometer ...


Can Smart Phone Pedometer Applications Accurately Estimate Caloric Expenditure During Exercise?, Rebecca Sipes, HollyAnn Wells, Libby McCurley, Joe D. Bell 2019 Abilene Christian University

Can Smart Phone Pedometer Applications Accurately Estimate Caloric Expenditure During Exercise?, Rebecca Sipes, Hollyann Wells, Libby Mccurley, Joe D. Bell

International Journal of Exercise Science: Conference Proceedings

Mobile devices are increasingly being used to track various fitness and activity parameters via free applications (apps). Numerous pedometer apps are available that in addition to tracking steps, also provide an estimation of calories expended. The accuracy of these apps in their estimation of caloric expenditure during activity is not well documented. PURPOSE: The aim of this study was to investigate the accuracy of the Stepz® free pedometer app in estimating kcal burned while walking on a treadmill by comparing this method to the validated method of indirect calorimetry. METHODS: Twenty-four students with mean age 20.5 ±1.4 years ...


Acute Effects Of Squat Position And Whole-Body Vibration Frequency On Muscular Function On Lower Extremities, Jonathan T. Gonzalez, Nancy Calle, Jose M. Sosa, Julissa Perez, Gualberto Garza IV, Liana Chee, Galilea Chapa, Murat Karabulut 2019 University of Texas Rio Grande Valley

Acute Effects Of Squat Position And Whole-Body Vibration Frequency On Muscular Function On Lower Extremities, Jonathan T. Gonzalez, Nancy Calle, Jose M. Sosa, Julissa Perez, Gualberto Garza Iv, Liana Chee, Galilea Chapa, Murat Karabulut

International Journal of Exercise Science: Conference Proceedings

PURPOSE: The purpose of this study was to examine the acute effects of whole-body vibration frequency on muscular function of lower extremities and jump performance depending on squat depth. METHODS: Thirteen male and fifteen female recreationally active subjects (ages 18-40) volunteered to participate in the study. Once all necessary paperwork was completed, anthropometric and equipment settings were recorded. Feet placement for all squats were measured to ensure consistency throughout study. Using a goniometer, the subject’s knees were positioned at 140° (high squat depth) or 90° (low squat depth) of flexion during squat exercises. Randomized testing sessions were as follows ...


An In Vitro Investigation Of The Effects Of Formoterol On Thyroid Hormone-Related Gene Expression During Myogenesis, Gena D. Guerin, Ryan A. Gordon, Emily L. Zumbro, Anthony A. Duplanty 2019 Texas Woman's University

An In Vitro Investigation Of The Effects Of Formoterol On Thyroid Hormone-Related Gene Expression During Myogenesis, Gena D. Guerin, Ryan A. Gordon, Emily L. Zumbro, Anthony A. Duplanty

International Journal of Exercise Science: Conference Proceedings

Thyroid hormone (TH) is a primary driver of skeletal muscle (SKM) metabolism as well as myogenesis through stimulation its genetic targets. The conversion and activation of thyroid hormone (T4 to T3) is controlled by local deiodinase 2 and 3 (DIO2, DIO3) activity. This leads to expression of nuclear receptors in promotor regions of specific genes including sarco/endoplasmic reticulum calcium ATPase 1(SERCA1), which is important for homeostasis of calcium regulation during muscle contraction. PURPOSE: The purpose of the study was to examine the effects of the exercise mimetic Formoterol (FORM), a beta-adrenergic receptor agonist, on the expression of thyroid ...


Exercise Participation And Indicators Of Skeletal Muscle Health In Women With Hypothyroidism, Ryan A. Gordon, Gena D. Guerin, Emily L. Zumbro, Ann O. Amuta, Anthony A. Duplanty 2019 Texas Woman's University

Exercise Participation And Indicators Of Skeletal Muscle Health In Women With Hypothyroidism, Ryan A. Gordon, Gena D. Guerin, Emily L. Zumbro, Ann O. Amuta, Anthony A. Duplanty

International Journal of Exercise Science: Conference Proceedings

Women with hypothyroidism report undesirable skeletal muscle symptoms at rest and during exercise. The severity of skeletal muscle symptoms may influence an individual’s willingness and capacity to exercise. PURPOSE: This study aimed to determine the relationship between exercise and skeletal muscle symptoms at rest and during exercise in women with hypothyroidism. METHODS: An online survey was completed by female participants diagnosed with hypothyroidism currently undergoing prescribed thyroid hormone treatment (n=580). Participants responded to questions related to basal muscle symptoms (MS), and muscle pain (MP) and fatigue (MF) experienced during exercise. Participants reported the type of exercise they performed ...


A Comparison Of Functional Movement Between Crossfit Trained, Recreationally Trained And Sedentary Individuals, Kelsey Ede, Laurel Hill, Shelby Moreno, Natalia Traverzo, Shelly D. Weise, Teresa Huckaby 2019 Angelo State University

A Comparison Of Functional Movement Between Crossfit Trained, Recreationally Trained And Sedentary Individuals, Kelsey Ede, Laurel Hill, Shelby Moreno, Natalia Traverzo, Shelly D. Weise, Teresa Huckaby

International Journal of Exercise Science: Conference Proceedings

CrossFit is a prevalent style of exercise training. The exercise style focuses on performance of aerobic and strengthening exercises which incorporate multi-joint, functional movements. These variables combine to enhance athletic performance and improve an individual's ability to perform daily functional movement patterns. A limited amount of research has compared CrossFit with other training groups regarding aerobic capacity, muscular strength and body composition. An even smaller percentage of research has compared functional movement variables. PURPOSE: Current research supports that CrossFit athletes demonstrate high symmetry of functional movement patterns. The primary aim of this study was to determine if CrossFit training ...


Heart Rate And Blood Pressure Recovery Responses To Different Modes Of Recovery Following Moderate Intensity Exercise In Females, Emily L. Zumbro, Greg A. Ryan, Stephen J. Rossi, John Dobson 2019 Texas Woman's University

Heart Rate And Blood Pressure Recovery Responses To Different Modes Of Recovery Following Moderate Intensity Exercise In Females, Emily L. Zumbro, Greg A. Ryan, Stephen J. Rossi, John Dobson

International Journal of Exercise Science: Conference Proceedings

Heart rate (HR) and blood pressure (BP) increases during exercise to meet metabolic demands through parasympathetic nervous system (PNS) withdrawal and sympathetic nervous system (SNS) stimulation. Heart rate recovery (HRR) and blood pressure recovery (BPR) following exercise are both important factors related to cardiovascular health. PURPOSE: The purpose of this study was to examine the effects of a slow-breathing technique compared to other forms of recovery on HRR and BPR following moderate-intensity exercise. METHODS: Nine moderately-active (20.22 ± 0.97 years) female participants cycled at 70% of their heart rate maximum (HRmax) on a cycle ergometer for 15 min ...


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