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Dancers Exhibit Different Organizations Of Muscular Effort In The Dominant Versus Non-Dominant Limb During The Impact Phase Of The Grand Jeté, Brandon Nunley, Ryan Lanier, Isabella Gonzales, Tanya Calamoneri, Ali Duffy, John Robert Harry

International Journal of Exercise Science: Conference Proceedings

Overuse musculoskeletal injuries of the hip, knee, and ankle are prevalent in dancers. Differences in muscular effort between the dominant and non-dominant limbs may increase musculoskeletal injury risk during dance movements involving a jump followed by a high-impact unilateral landing. PURPOSE: To investigate potential differences in lower extremity muscular effort (i.e., joint angular work) between the dominant and non-dominant limbs during the landing phase of a grand jeté movement in dancers. METHODS: Collegiate dancers consisting of eight women (19 ± 1 y; 54.7 ± 6.9 kg; 1.7 ± 0.1 m) and two men (21 ± 1 y; 70.6 …

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 researched validity are the Lachman test, Anterior Drawer …

The Effects Of Blood Flow Restriction Training On Strength, Body Composition, And Hormone Response In Resistance Trained Collegiate Females., Victoria R. Olive, Julia M. Harrison, Jelena Jakovljevic, Sarah F. Truelove, Drew A. Willoughby, Stacie Urbina, Lemuel W. Taylor Iv, Colin Wilborn

International Journal of Exercise Science: Conference Proceedings

INTRO: Blood Flow Restriction (BFR) training combined with resistance training is thought to be an effective modality in increasing muscular strength and hypertrophy, as well as growth hormone and cortisol levels in the blood. PURPOSE: The purpose of this study was to examine the effectiveness of BFR combined with resistance training on muscular strength, hypertrophy, growth hormone, and cortisol compared to resistance training alone. METHODS: Twenty-one female participants (9 omitted for non-compliance), ages ranging between 18-25, resistance trained, and BMI <30.0 kg/m², were recruited from the UMHB student body. Participants were randomly divided into two groups: Occluded (OC) and Non-occluded …

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 …

Exogenous Ketones Do Not Improve Cognitive Performance Measures During A Dual Stress Challenge In Healthy College Aged Males, Mathis E. Popelsky, Dylan J. Watson, Matthew J. Mcallister, Hunter S. Waldman

International Journal of Exercise Science: Conference Proceedings

Different occupations require mental clarity under physically stressful environments. Recent studies have shown ketone salt supplementation improves cognitive capacity during exhaustive exercise. PURPOSE: The purpose of this study was to investigate the effects of acute supplementation of ketone salts on cognitive performance during a dual stress challenge (DSC) with aerobic exercise. METHODS: Sixteen (n=16) recreationally active healthy college-aged males (aged 21.9± 1.9 years, mass of 80.6± 7.4kg, height of 175.8± 8.6 cm and VO₂ peak of 40.5± 8.4 (ml•kg^-1•min^-1)participated in this placebo-controlled, triple-blinded, counter balanced, cross-over design study. The subjects completed a total of 4 …

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

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 at …

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

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: 50 …

Acute Effects Of Concurrent Exercise On Biomarkers Of Angiogenesis And Cardioprotection In Sedentary Adults: Preliminary Findings, Matthew F. Brisebois, Emily L. Zumbro, Brittany Patton, Isaac F. Rowland, Ryan A. Gordon, Matthew Sokoloski, Gena D. Guerin, Forrest Bernal, Anthony A. Duplanty, Brandon R. Rigby

International Journal of Exercise Science: Conference Proceedings

There is evidence that performing brief bouts of aerobic-type exercise before each set of resistance exercise (i.e., integrated concurrent exercise) leads to superior health and fitness outcomes than when the modalities are performed independently (i.e., serial concurrent exercise). This advantage may be due in part to an exaggeration of functional hyperemia leading to an augmented cardiovascular adaptive response. PURPOSE: To analyze circulating levels of an endothelial shear stress-induced biomarker (microRNA-126) and a biomarker of cardiovascular development (microRNA-222) before and after volume- and time-matched serial and integrated concurrent exercise sessions in young, healthy, sedentary adults. METHODS: One female …

Changes To Strength, Muscular Power, And Bar Velocity After 2-Weeks Of Eccentric Overload Bench Press Training: A Case Study, Alondra Rodriguez, Lance Gruber, Samuel Montalvo, Matthew P. Gonzalez, Devin Bastian, Sandor Dorgo

International Journal of Exercise Science: Conference Proceedings

CASE HISTORY: Eccentric Overload Training (EOT) is a training method aimed to improving strength and power based on attenuated eccentric muscular contraction. EOT is defined as a lift where the eccentric load is set at a percentage higher than that of concentric 1RM. However, research pertaining to EOT has been primarily focused on lower-body strength. Currently, it is unclear what effects EOT can have for upper-body strength. The purpose of this case study is 1) to observe changes to power output after incorporating 2-weeks of EOT training for the bench press exercise; 2) to evaluate whether bar velocity at …

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 hormone-related …

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

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 …

Case Study For Left Labrum Tear Of The Shoulder, Nadav Jaldety, Vered Arbel, Mehran Sorouri, Tal Amasay

International Journal of Exercise Science: Conference Proceedings

CASE HISTORY: 27-year-old male complains of newly worsening left shoulder pain after playing an intense basketball tournament over the weekend. He denies a single incident that caused his pain and was able to finish playing the tournament. Patient is a recreational basketball player and has a daytime desk job. He complains of having pain while trying to sleep on the left shoulder, hence he only slept on his right shoulder. PHYSICAL EXAM: Physical examination revealed a slight loss of motion in the left shoulder. No palpatory tenderness of the left shoulder was identified. However, patient experienced pain with …

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 (HR_max) on a cycle ergometer for …

Case Presentation For Metastatic Prostate Cancer, Aditi N. Gupte, Vered Arbel, Mehran Sorouri, Tal Amasay

International Journal of Exercise Science: Conference Proceedings

CASE HISTORY: Patient is a 55 years old male that has been suffering from pain in the right side of the lumbosacral region that radiates to the buttock, posterior thigh, and lateral calf. There was no history of trauma, but he experienced initial painful symptoms three months ago, while he was sitting with cell phone in his back pocket. The patient describes pain as an occasional sharp shooting pain, which worsened progressively in intensity and frequency. No changes in the bowel and bladder were reported. However, due to the symptoms, his appetite and sleep were disturbed. The condition also …

Manual Resistance Training As An Alternative Post-Activation Potentiation Method: A Pilot Study, Matthew P. Gonzalez, Samuel Montalvo, Martin Dietze-Hermosa, Sandor Dorgo

International Journal of Exercise Science: Conference Proceedings

Post-activation potentiation (PAP) can be defined as an acute effect of improved muscular performance as a result of their contractile history. PAP is typically induced through weight resistance exercises. Manual Resistance Training (MRT) is a form of accommodating resistance, but it’s feasibility as an alternative method to elicit PAP is not known. PURPOSE: 1) To assess if potentiation can be achieved through the use of MRT, and 2) to compare the effectiveness of MRT applications of eliciting PAP to that accomplished through an isokinetic dynamometer. METHODS: Six (2 males and 4 females) young adults (mean ± SD; …

Case Presentation For Herniated Nucleus Pulposus L5-S1, Annalise Kurowski, Vered Arbel, Mehran Sorouri, Tal Amasay

International Journal of Exercise Science: Conference Proceedings

CASE HISTORY: The patient is a 35-year-old male police officer, who presents with an antalgic gait and has been suffering from pain in his right posterior thigh. He suffers from acute pain which began a week before meeting with an orthopedic specialist who prescribed physical therapy for a strained hamstring. No traumatic incident or known cause for the pain has been identified. The patient’s pain has affected his activities of daily living (ADL) and has been found to negatively affect his driving at work. PHYSICAL EXAM: Several orthopedic tests and range of motion assessments were conducted. It was …

Can A Dynamic Warm-Up Reduce The Magnitude Of Immune Perturbation Following Vigorous Aerobic Exercise, Mahmoud T. Elzayat, Emily C. Lavoy

International Journal of Exercise Science: Conference Proceedings

Exercise transiently increases several leukocyte populations in peripheral blood in an intensity-dependent manner, with numbers returning to baseline or lower during recovery. This mobilization of immune cells is explained in part by sympathetic activity and the release of stress hormones (catecholamines and cortisol). The literature examining immune responses to exercise has by and large failed to control for the presence of a warm-up prior to the experimental bout. Gradually increasing exercise intensity over a period of minutes may reduce the stress of the exercise bout and thus may influence the immune response to a given exercise protocol. PURPOSE: To …

Effects Of High Concentration Vivissential Amino Acids Sports Drink Ingestion On Performance In Trained Athletes, Klaudia Szych, Ariel Gomez, Jerene Yazzie, Sarah A. Massey, Lorenzo Juarez, Andi Johnson, Shannon Jackson, Matthew A. Barlow Phd

International Journal of Exercise Science: Conference Proceedings

Essential amino acids are necessary for protein nutrition and muscle sustainability. Previous studies looking at the effects of BCAAs did not result in measurable reductions in muscle damage and enhanced recovery of muscle function. PURPOSE: The Calwood Nutritionals Company manufactures a balanced nutritional formula of amino acids with the addition of a higher concentration of arginine and methionine, which during an acute 3-day study in our lab decreased muscle degradation in a young sedentary population. The purpose of this study is to examine the changes in performance following the chronic consumption of the essential amino acids in collegiate athletes …

The Effects Of Twelve Weeks Of Combined Resistance And Aerobic Training On Arm Lean Mass In Post-Menopausal, Obese Women, Jacob O'Connor, Andreas Kreutzer, Michael M. Levitt, Maria A. Cardenas, Carmen Cook, Emily Souder, Kaci Orr, Stephanie Huber, Gail Teagle, Kirby Thames, Elise Erickson, Emma Wichman, Melody D. Phillips

International Journal of Exercise Science: Conference Proceedings

ABSTRACT

Sarcopenia, a loss in muscle mass as a result of aging, is an independent risk factor for disability and is significantly associated with self-reported physical disability in both men and women. Strength training reverses the loss of, or maintains muscle mass in individuals as they age. PURPOSE: To examine the potential change in lean muscle mass of the arms in response to a 12-week combination strength and aerobic exercise training intervention in post-menopausal (55-75 years), obese women. METHODS: Forty-one women were randomly assigned to either an exercise (EX, n=22 ) or education (ED, n=19) group. For twelve …

Changes In Visceral Adipose Tissue And Body Composition After A Short-Term Hypocaloric High-Fat Diet, Jarrett Walbolt, Yunsuk Koh

International Journal of Exercise Science: Conference Proceedings

Introduction: Elevated cardiometabolic risk is linked with excess visceral adipose tissue (VAT), and high-fat (HF) diets are often used to combat unfavorable body composition. Purpose: To investigate the connection between HF diets and body composition, more specifically VAT. Methods: 12 healthy, sedentary individuals participated in a randomized, cross-over design study. A two-week HF or high-carbohydrate (HC) diet with a 20% total reduction in total caloric intake from their typical diet was randomly assigned to each participant. The HF diet consisted of 70% fat and 30% carbohydrate and protein, with a limit of 50 grams of carbohydrate, while the HC diet …

Increasing Vertical Jump Height Using Two Alternative Post-Activation Potentiation Methods, Itzel N. De La Torre, Samuel Montalvo, Daniel Conde, Gabriel Mejia, Sandor Dorgo

International Journal of Exercise Science: Conference Proceedings

Post-Activation Potentiation (PAP) is an exercise concept involving maximal muscular contraction to improve subsequent a dynamic contraction. An effective PAP method is one based on a balanced state of physical readiness and fatigue. Fatigued muscles reduce muscle performance. However, non-fatiguing muscular contractions at high loads with short duration can enhance muscle performance. Heart Rate (HR) can be used as an indicator of exercise readiness and fatigue. Additionally Heart Rate Percentage (HR %) was used as an indicator of readiness. PURPOSE: To assess the feasibility of using Heart Rate Percentage (HR%) as a readiness indicator during a back-squat PAP method. …

Tibial Stress Fractures, Rowdy S. Teaff

International Journal of Exercise Science: Conference Proceedings

CLINICAL PRESENTATION & EXAM: Distance runners are prone to stress fractures, in particular, tibial stress fractures appear to be more common due to their rear foot striking pattern (RFS). A tibial stress fracture is a bone stress injury (BSI) that usually occurs on the diaphysis of the tibia as a result of overuse. Local and radiating pain along the anterior surface of the tibia is one of the primary symptoms that patients with tibial stress fractures exhibit. An inability to bear weight on it may also occur in more serious cases. ANATOMY & PATHOLOGY: Bone stress is a …

Effects Of An Acute Strength And Conditioning Training Session On Dual Energy X-Ray Absorptiometry Results, Sean T. Stanelle, Jason Lytle Mr., Steven E. Martin, John S. Green Ph.D., Stephen F. Crouse

International Journal of Exercise Science: Conference Proceedings

In the use of dual x-ray absorptiometry (DXA) scans to obtain reliable measures of body composition, athletic staff must be aware of acute factors that may alter scan estimates. Although factors such as hydration status and food intake have been shown to alter DXA results (Tinsley, MSSE 2016), it is unknown whether an acute strength and conditioning (S&C) session will alter DXA scan estimates. PURPOSE: To determine if a strength and conditioning (S&C) training session, based upon what athletes regularly engage in, will alter body composition estimates (lean mass, fat mass, and bone mineral content) of a DXA scan. …

The Effects Of Three Post-Activation Potentiation Methods On Muscular Activation Of Knee Extensors: A Pilot Study, Samuel Montalvo, Matthew P. Gonzalez, Martin Dietze-Hermosa, Sandor Dorgo

International Journal of Exercise Science: Conference Proceedings

Post-Activation Potentiation (PAP) is a phenomenon that involves a maximal voluntary contraction that potentiates a subsequent dynamic muscular contraction. Manual Resistance Training has been used to alternative resistance training methods. However, the application of MRT on PAP methods on muscular activation has not been yet studied. PURPOSE: To assess the feasibility of three different methods of eliciting PAP in combination with three different resting time periods between the maximal voluntary contraction and the subsequent dynamic activity METHODS: Four subjects (1 male and 3 females; mean ± SD; age = 21.7 ± .5 years) participated in this randomized …

Accelerated Rehabilitation Protocol On Plantar Fasciitis, Alissa Bello, Zacharias Papadakis

International Journal of Exercise Science: Conference Proceedings

CASE HISTORY:The patient is a 21-year-old collegiate soccer player who suffered from acute mild to severe plantar fasciitis on the left foot for 12 months. Early onset symptoms began with pain in the morning and after training sessions in the medial and calcaneal region. PHYSICAL EXAM:The plantar fasciitis examination identified pain in the medial plantar calcaneal region with palpation, hyper-pronation of the left foot, slightly abnormal gait, numbness radiating on the peroneal nerve to outer left knee, and discomfort in the proximal plantar fascia with passive ankle dorsiflexion. She had poor range of motion (ROM) in dorsiflexion with …

The Neuromuscular And Muscle Damage Responses To The Farmers Walk: A Pilot Study, Jeb F. Struder, Arriana M. Mcdonald, Jordan B. Wainwright, Joseph B. Eberhardt, Zeina Nader, Noe Deanda, Souhad Z. Bachnack, Cody Haenitsch, Stephen Cumberledge, Daniel E. Newmire, Mikaela D. Boham, Heather E. Webb

International Journal of Exercise Science: Conference Proceedings

The Farmer’s Walk (FW) has been suggested as a useful supplement to resistance training due to its premise as a functional training tool. Minimal information is available concerning biochemical and neuromuscular responses associated with performing the FW. Current literature regarding risks of muscle damage associated with the FW are limited impacting possible use in exercise prescription and application. PURPOSE: The purpose of the study was to investigate the neuromuscular and biochemical responses to the FW when compared to an individual’s unloaded walking pattern (Non-weighted condition; NWC). METHODS: Fifteen participants (Mean ± SEM; age: 21.6 ± 0.5yo; ht: 172.5 …

Predicting Resting Metabolic Rate In Healthy Adults Using Body Composition And Circumference Measurements, Kristi L. Chase, Kyle T. Patek, John L. Walker, Joni A. Mettler Ph.D

International Journal of Exercise Science: Conference Proceedings

Measurement of resting metabolic rate (RMR) is an important factor for weight management. Previous research has reported several variables to estimate RMR such as body size, percent fat (%BF), age, and sex; however, little is known regarding the effect of circumference measures in estimating RMR. PURPOSE: The purpose of this study was to develop a model to estimate RMR using waist circumference (WC), an easily obtainable measure, and cross-validate it to previously published models. METHODS:Subjects were 140 adult men and women, ages 18-65 years. RMR was measured through indirect calorimetry, %BF was measured through air displacement plethysmography, and fat …