Exercise Physiology Commons^™

Mechanical And Physical Characteristics Of Knee Flexors And Extensors Following Different Warm Up Protocols In Collegiate Male Soccer Athletes, Michael Redd

Electronic Theses and Dissertations

PURPOSE: To compare potential differences in mechanical and physical characteristics of knee flexors and extensors in collegiate male soccer players following different warm up protocols. METHODS: Sixteen collegiate male soccer players (20.33 ± 1.33 years, 176.97 ± 6.72 cm, and 78.43 ± 7.42 kg) participated in this study. A small sided games warm up (SSG), a dynamic warm up (DYN), and a plyometric warm up (PLY) were completed using a randomized crossover design. Tensiomyography (TMG) was used to assess contraction time (Tc), delay time (Td) and maximal displacement (Dm) of the rectus femoris (RF) and biceps femoris (BF) of both …

Β-Catenin Regulation Of Adult Skeletal Muscle Plasticity, Yuan Wen

Theses and Dissertations--Physiology

Adult skeletal muscle is highly plastic and responds readily to environmental stimuli. One of the most commonly utilized methods to study skeletal muscle adaptations is immunofluorescence microscopy. By analyzing images of adult muscle cells, also known as myofibers, one can quantify changes in skeletal muscle structure and function (e.g. hypertrophy and fiber type). Skeletal muscle samples are typically cut in transverse or cross sections, and antibodies against sarcolemmal or basal lamina proteins are used to label the myofiber boundaries.

The quantification of hundreds to thousands of myofibers per sample is accomplished either manually or semi-automatically using generalized pathology software, and …

Training Loads Of A Division I Conference Volleyball Tournament, Christine L. Coniglio, Austin Smith, Abdulmalek Bursais, Julia Kirkpatrick, Justin Taylor, Jeremy A. Gentles

ETSU Faculty Works

No abstract provided.

The Demands Of A Women's College Soccer Season, Jeremy A. Gentles, Christine L. Coniglio, Matthew M. Besemer, Joshua M. Morgan, Michael T. Mahnken

ETSU Faculty Works

No abstract provided.

Using Echo Intensity As A Monitoring Tool To Determine Training Adaptations And Recoverability In High-Level Weightlifters, S. Kyle Travis, Jeremy A. Gentles

ETSU Faculty Works

No abstract provided.

Acute Cardiovascular Responses To Novel Combinations Of Resistance And Aerobic Exercise, Travis Wakeham

Dissertations, Master's Theses and Master's Reports

Cardiovascular disease (CVD) is the leading cause of death globally. One of the most effective forms of prevention and treatment is physical activity. However, recent studies have suggested that resistance exercise can increase arterial stiffness. Maintaining adequate strength is critical for performing activities of daily living, occupational-related tasks, and sport movements. The purpose of this project was to determine if novel combinations of resistance and aerobic exercise could offer musculoskeletal benefits without adverse cardiovascular consequences. In Study 1, we examined the effect of order (i.e. aerobic before resistance, or resistance before aerobic) on arterial stiffness when combining these exercise …

Changes In Reach To Eat Movement Control After Intensive Training For Children With Unilateral Cerebral Palsy, Yaching Hung, Aryeh D. Spingarn

Publications and Research

Ya Ching Hung EdD. and Aryeh Spingarn EP-C, CSCS, EIM-Level 2 Queens College, City University of New York Department of Family, Nutrition, and Exercise Sciences, Changes in Reach to Eat Movement Control After Intensive Training for Children with Unilateral Cerebral Palsy. Purpose: The current study compares the effects of an intervention on children with Congenital Hemiplegia during a simple eating task using kinematic analyses. Previous studies looked at simple bimanual tasks such as opening a drawer; no studies examined the effects of intensive training on unimanual reach, grasp, and eat movement control. Methods: 20 children with Unilateral Spastic Cerebral Palsy …

The Effect Of Tackling Training On Head Accelerations In Youth American Football, Eric Schussler, Richard J. Jagacinski, Susan E. White, Ajit M. Chaudhari, John A. Buford, James A. Onate

Rehabilitation Sciences Faculty Publications

Background: Many organizations have introduced frameworks to reduce the incidence of football related concussions through proper equipment fitting, coach education, and alteration of tackling technique.

Purpose: The purpose of this study was to examine the effects of training in a vertical, head up tackling style on the number of head accelerations experienced while tackling in a controlled laboratory situation. The authors hypothesized that training in a head up tackling technique would reduce the severity of head acceleration experienced by participants.

Design: Controlled Laboratory Study.

Methods: Twenty-four participants (11.5 ± 0.6 years old, 60.5 ± 2.2 in, 110 ± 18.4 lbs.) …

Examining The Effects Of Interleukin-6 On Appetite Regulatory Peptides In Lean And Obese Sedentary Males, Greg L. Mckie

Theses and Dissertations (Comprehensive)

Acute moderate-intensity exercise transiently suppresses appetite via fluctuations in the appetite-regulatory peptides acylated ghrelin (AG), peptide tyrosine-tyrosine_3-36 (PYY_3-36), and active glucagon-like peptide-1 (GLP-1). Importantly, these effects do not lead to compensatory changes in energy intake in normal weight or obese individuals, highlighting the potential for exercise to induce acute energy deficits. One potential mechanism for these effects is increased post-exercise plasma concentrations of interleukin (IL)-6, as IL-6 has demonstrated appetite-inhibitory effects in animal and cell culture models. Given obesity is characterized by a state of chronic low-grade inflammation and associated with upregulated IL-6, this study sought to …

Impact Of Aerobic Exercise On Monocyte Subset Receptor Expression And Macrophage Polarization, Anson M. Blanks

Theses and Dissertations

Atherosclerotic cardiovascular disease (CVD) is hallmarked by inflammatory immune activation, particularly by the induction of a response by monocytes. Classical (CD14⁺⁺CD16^-) are anti-inflammatory mediators under homeostatic conditions, while intermediate (CD14⁺⁺CD16⁺) and non-classical (CD14^LowCD16⁺⁺) monocytes promote inflammation following activation. Monocyte activation and functionality is dependent upon receptor expression and ligand production by a variety of cells, including monocytes. Alterations in the expression of surface receptors often have a direct impact upon monocyte function, such as the increased pro-inflammatory cytokine production in response to activation that accompanies elevated CD14 expression …

Role Of Brain Derived Neurotrophic Factor (Bdnf) In Stimulating Strength Improvements Induced By Short-Term Resistance Training, David Church

Electronic Theses and Dissertations

Strength adaptations from short-term resistance training are thought to be related primarily to neurological adaptations. Considering brain-derived neurotrophic factor (BDNF) role in the nervous system, it is possible that BDNF has a role in these adaptations. Fourteen untrained males were randomized into either a resistance training (RT; n =8) or control (CON; n=6) group. Motor unit (MU) recruitment at 50% and 80% of each participant's maximal voluntary isometric contraction (MVIC), muscle cross sectional area (CSA) and thickness (MT), as well as one-repetition maximum (1RM) of the squat (SQT), leg press (LP), and leg extension (LE) were performed before (PRE) and …

Examining Work-To-Rest Ratios To Optimize Upper Body Sprint Interval Training, Michael La Monica

Electronic Theses and Dissertations

The primary purpose of this study was to compare the metabolic influence of varying work-to-rest ratios during upper body sprint interval training (SIT). Forty-two recreationally trained men were randomized into one of three training groups [10s work bouts with two minutes of rest (10:2, n = 11) or four minutes of rest (10:4, n = 11), or 30s work bouts with four minutes of rest (30:4, n = 10)] or a control group (CON, n = 10). Participants underwent six training sessions over two weeks with four to six 'all-out' sprints. During pre- and post-intervention visits, participants underwent a graded …

The Effects Of Two Different Sports Drinks On Rpe And Finishing Speed Of An Endurance Run In Highly Trained Distance Runners, Matthew J. Feldhake

Masters Theses

The purpose of this study was to compare the effects of a protein-containing sport drink with a traditional non-protein sport drink has on ratings of perceived exertion (RPE) and finishing speed of an half marathon. Of the possible factors that would support including protein in a sport drink the primary one was its inhibitory effect on serotonin release in the brain. This could help attenuate perceived exertion, thus allowing individuals to compete at a higher level for longer durations (Davis, Alderson, & Welsh, 2000).

This study was conducted using nine members of the Eastern Illinois University Men's Cross Country team. …

The Effect Of Stride Frequencies On Running Performance At The Velocity Of Vo2max, Boram Lim

Cal Poly Humboldt theses and projects

Running economy(RE) is considered to be a critical factor to improve running performance. Stride frequency(SF) is an important variable for determining RE. The importance of SF has gained more attention in recent years, especially for recreational runners. However, no previous research has investigated the interaction between running performance and SF at the velocity of VO₂max. PURPOSE: To investigate the effect of five different SF variations on running performance until volitional fatigue at the velocity of VO₂max. METHODS: Fourteen male recreational runners (Age = 25.8 ± 4.96 years, Height = 171 ± 6.2cm, Body Mass = 71.9 …

Exercise Dependence And Shin Pain In A Division I Cross-Country Runner: A Case Study, Allyssa K. Memmini

Clinical Practice in Athletic Training

The following case investigates insidious onset of shin pain in a Division I female cross-country runner. Though her initial evaluation revealed early onset medial tibial stress syndrome, the sequence of events that occurred immediately afterwards is what makes this case unique. As the student-athlete underwent lower extremity rehabilitation to increase her mileage, she reported that her pain had plateaued. The initial x-ray revealed a periosteal reaction of the posterior left tibia. After adhering to the treatment plan for four weeks, the student-athlete continued to report significant bouts of pain as demonstrated by the Visual Analog Scale. A follow-up x-ray revealed …

Implementing A Behavior Health Policy In The Secondary School, Jamie Nikander, Lindsey E. Eberman

Clinical Practice in Athletic Training

No abstract provided.

Guidelines For Useful Integration Of Patient-Rated Outcome Measures Into Clinical Practice, Skye Livermore-Brasher, Russell Baker, Alan Nasypany, Scott Cheatham

Clinical Practice in Athletic Training

No abstract provided.

Interleukin-6 And Exercise; Early Evidence Of A Novel Myokine, Brendan Hogg Mr.

Graduate Student Theses, Dissertations, & Professional Papers

Interleukin-6 (IL-6) was first identified as a pleiotropic cytokine, with a host of body-wide functions. Cytokine functions are characterized by chronically elevated levels within various inflammatory states. In this regard, IL-6 is largely associated with the acute phase response to many stimuli and performs specific actions when produced from certain cell types. Accrued evidence indicates IL-6 release from skeletal muscle often includes myokine functions. Novel myokine functions are adaptive in nature, and as compared to inflammatory/cytokine roles, exhibit a transient time course. Following exercise plasma IL-6 peaks and returns to resting levels within 1-2 hours. In contrast, IL-6 is observed …

Effects Of Knee Sleeves On Knee Mechanics During Squats At Variable Depths, Alexandria A. Trypuc

Human Movement Studies & Special Education Theses & Dissertations

The squat is a functional, compound and multi-joint exercise that targets several muscles of the lower body and is widely used in both athletics and many exercise programs. This exercise has been the subject of many studies, comparing different squat variations and examining how external gear, such as squat suits and knee wraps impact the exercise. The aim of this study was to assess the effects of wearing neoprene knee sleeves on lower extremity kinematics, kinetics, and muscle activations during weighted back squats. Fifteen resistance trained men and women, aged 28±5 years, from the local fitness community and university campus …

Response Of Appetite And Appetite Regulating Hormones To Acute Hypoxia, Morgan Busboom, Robert Shute, Dustin Slivka

Journal of Human Performance in Extreme Environments

AIM: To determine the acute response of appetite and appetite regulating hormones after exposure to simulated altitude. METHODS: Seven males and five females (height: 178.9 ± 2.3 cm; weight: 77.3 ± 7.2 kg; body fat: 18.4 ± 1.7%) participated in two, three-hour trials in a hypoxic (5000 m) and normoxic (350 m) environment. Blood samples were collected prior to and immediately following three hours of exposure for the measurement of leptin, adiponectin, and acylated ghrelin. Appetite, acute mountain sickness, heart rate, blood oxygenation, tissue oxygenation, respiration rate, and whole body gases were also measured. RESULTS: Leptin was not different between …