Kinesiology Commons^™

Effects Of A 3-Week High-Fat-Low-Carbohydrate Diet On Lipid And Glucose Profiles In Experienced, Middle-Age Male Runners, Eric K. O'Neal, Ashton F. Smith, Alexander J. Heatherly, Lauren G. Killen, Hunter S. Waldman, Angela Hollingsworth, Yunsuk Koh

Kinesiology

This study examined glucose and lipid marker responses following a three-week, ad libitum low-carbohydrate high-fat diet (LCHF; approximately 70 percent of total calories from fat, less than 50 grams per day of net carbohydrates) versus the habitual mixed macronutrient diet (HMD) of eight middle-aged, trained male runners (40 plus or minus 10 years; VO2 peak = 49 plus or minus 4 milliliters per kilogram per minute). Blood was drawn at 0600 from an antecubital vein after an overnight fast under conditions of no exercise or heat stress (NEXH; 48 hours of restriction from intense exercise) or 24 hours after exercise …

The Effects Of Acute Omega-3 Fatty Acid Supplementation On Delayed-Onset Muscle Soreness And Recovery, Colin A. Butler

College of Graduate Studies: Theses & Dissertations

Delayed-onset muscle soreness (DOMS) is the feeling of discomfort that occurs after being exposed to unaccustomed eccentric resistance training often resulting in diminished athletic performance. Previous research has shown positive effects with omega-3 fatty acid (O3FA) supplementation to ameliorate DOMS. The purpose of this study was to investigate the effects of acute O3FA supplementation on perceived muscle soreness, ratings of exertion, and recovery after a lower body resistance training protocol in college-aged males. A double blind, repeated-measures design was utilized with 10 healthy, college-age males. Participants were placed in the placebo (olive leaf oil) or experimental (O3FA) group, consuming 3,000 …

Ankle-Knee Initial Contact Angle And Latency Period To Maximum Angle Are Affected By Prolonged Run, Sydni Wilhoite Ms

College of Graduate Studies: Theses & Dissertations

INTRODUCTION: The angle experienced at initial contact and midstance have been suggested to influence the risk of injury. Previous literature has not assessed these angles under the influence of novel footwear for a non-exhaustive prolonged run or the relationship between the angles. PURPOSE: The purpose of this study was to assess the change of lower extremity kinematic parameters and the relationship between kinematic parameters at initial contact and midstance with prolonged running under the influence of different types of footwear. METHODS: The participants included 12 experienced, recreational runners (6 male; 6 female; 24.8 ± 8.4 years; 70.5 ± 9.3 kg; …

Neuromuscular Electrical Stimulation: A Novel Treatment Intervention For Improving Metabolic Health In An Overweight/Obese Population, Michelle J. Galvan

Open Access Theses & Dissertations

Background: Most U.S. adults (80%) do not meet minimum exercise recommendations by ACSM (CDC, 2015). Using an in vitro primary cell culture model, we and others have shown that muscle contraction induced by electrical stimulation results in increased glucose transporter 4 (GLUT4) protein, glucose uptake and mitochondrial content. Neuromuscular electrical stimulation (NMES) is a novel alternate strategy to induce muscle contraction, using electrical impulses. However, effectiveness of NMES induced muscle contraction to improve insulin sensitivity and energy expenditure is not clear. The purpose of this study was to investigate the effects of four weeks of NMES on insulin sensitivity in …

Zumba In The Postindustrial Midwest: Minority Women And Access To Physical Fitness, Selen Razon, Shannon Powers, Lindsay Pursglove, Dagny Zupin, Lawrence W. Judge

Kinesiology Faculty Publications

Historically, minority women have had limited access to health care resources. Healthy People 2020 identified the promotion of activity and wellness as a key for eliminating heath disparities in ethnic minorities, as minority women are not significant consumers of exercise programming. This study explored participation of a sample of underserved African American women in an individualized Zumba exercise program. The underserved sample was taken from a postindustrial Midwestern city. Participants (n = 35, Mage = 45.75) completed a 4-month aerobic intervention program offered through an accessible gym. At program completion, they responded to a semistructured survey that gauged reasons for …

Tumbling Into A Crisis: Use Of Corporate Apologia After Usa Gymnastics Falls Off The Balance Beam, Terry L. Rentner, Cory Young

International Crisis and Risk Communication Conference

In an open letter to U.S. gymnasts on Nov. 5, 2018, United States Olympic Committee (USOC) CEO Sarah Hirshland told its more than 150,000 members “You deserve better” as it launched the Nuclear Clause that would revoke USA Gymnastics (USAG) as a governing body for the sport at the Olympic level [1]. This announcement comes in the wake of USAG’s ongoing crisis that includes a failure to protect athletes from team doctor Larry Nassar, imprisoned for sexually abusing more than 350 female gymnasts; investigations tied to Michigan State University; and the turnover of several USAG CEO’s in just two years. …

Short Term Examination Of Physical Activity And Sleep Quality With Children With Autism Spectrum Disorder, Demani Barak Barnes

Honors Undergraduate Theses

Children diagnosed with Autism Spectrum Disorder (ASD) may not be meeting the recommended amounts of physical activity (PA) or obtain a sufficient amount of sleep, however, few studies have objectively compared PA, sedentary behavior, and sleep quality between typically developing (TD) youth, and youth with ASD. Therefore, the purpose of this study was to compare levels of PA, sedentary behavior, and sleep quality between youth with ASD and TD youth. Twenty-three children with ASD and 12 TD children wore the Actigraph GT9X accelerometer over seven days and nights to assess activity and sleep. Youth with ASD had significantly greater levels …

The Influence Of Mental Imagery On Myofascial Restriction, Juan P. Rodriguez

Honors Undergraduate Theses

Introduction: Mental imagery (MI) has been shown to influence flexibility when used with treatments such as stretching. Currently, little evidence supports the efficacy of MI as an independent tool to increase flexibility. Therefore, the purpose of this investigation was to test if a guided mental imagery protocol could positively influence subject physical measures, including myofascial length, muscle tone and range of motion measures.

Methods: Individuals with no history of lower limb injuries that would affect hamstring flexibility underwent initial measures, random assignment to a mental imagery or control group, and post-intervention measures. The imagery group followed a guided visualization of …

The Effects Of Ankle Stiffness On Mechanics And Energetics Of Walking With Added Loads: A Prosthetic Emulator Study, Erica Hedrick, Philippe Malcolm, Jason M. Wilken, Kota Z. Takahashi

Journal Articles

Background: The human ankle joint has an influential role in the regulation of the mechanics and energetics of gait. The human ankle can modulate its joint ‘quasi-stiffness’ (ratio of plantarflexion moment to dorsiflexion displacement) in response to various locomotor tasks (e.g., load carriage). However, the direct effect of ankle stiffness on metabolic energy cost during various tasks is not fully understood. The purpose of this study was to determine how net metabolic energy cost was affected by ankle stiffness while walking under different force demands (i.e., with and without additional load).
Methods: Individuals simulated an amputation by using …

Improvement Of Lipids And Reduction Of Oxidative Stress With Octacosanol After Taekwondo Training, Sang-Ho Lee, Steven D. Scott, Elizabeth J. Pekas, Jeong-Gi Lee, Song-Young Park

Health and Kinesiology Faculty Publications

Athletes in combat sports undergo rapid changes in body weight prior to competition in order to gain a size advantage over their opponent. However, these large weight changes with concomitant high-intensity exercise training create poor lipid profiles and high levels of oxidative stress, which can be detrimental to health and sport performance. Therefore, the purpose of this study was to investigate the ability of the nutritional supplement octacosanol to combat the physiological detriments that occur in taekwondo players during rapid weight loss with high-intensity exercise training. Methods: A total of 26 male taekwondo players were randomly divided into 2 groups: …

Chronic Low Intensity Continuous And Interval Training Prevent Heart Failure-Related Coronary Artery Stiffness, An Ouyang

Theses and Dissertations--Kinesiology and Health Promotion

Heart failure (HF) induced by aortic pressure over-load is associated with increased coronary artery stiffness. Perivascular adipose tissue (PVAT) and advanced glycation end products (AGE) both promote arterial stiffness. However, the mechanisms by which coronary PVAT promotes arterial stiffness and the efficacy of exercise to prevent coronary stiffness are unknown. The present study hypothesized both chronic continuous and interval exercise training would prevent coronary artery stiffness associated with inhibition of PVAT secreted AGE. Yucatan mininature swine were divided into four groups: control-sedentary (CON), aortic-banded sedentary heart failure (HF), aortic-banded HF continuous exercise trained (HF+CONT), and aortic-banded HF interval exercise trained …

Heart Rate Dynamics During And After Simulated Fire Ground Tasks: Effects Of Physical Fitness And Training, Anssi Ilmari Saari

Theses and Dissertations--Kinesiology and Health Promotion

Firefighting is a strenuous occupation that increases the risk of cardiovascular events. Greater levels of physical fitness and training improve firefighters’ occupational performance, but little is known whether they are related to lower physiological stress and recovery from fire ground tasks. Heart rate, heart rate recovery and heart rate variability have been used to evaluate physical stress in association with exercise and fire ground tasks. However, there is a paucity of research evaluating the effects of physical fitness and training on heart rate dynamics during a simulated fire ground test (SFGT). Therefore, the primary purposes of this study were to …

Analysis Of Push-Up And Pull-Up Variants To Develop An Upper Extremity Model, Ashley Carlene Wimsett

Theses and Dissertations--Kinesiology and Health Promotion

Musculoskeletal Injuries are the most common cause of severe long-term pain and physical disability. Push-Ups and Pull-Ups are effective dynamic exercises that mimic high level function activities, such as those used in the military. The model developed allows for researchers to analyze the forces and moments associated with the shoulder, elbow and wrist, to further assess function in military personnel, athletes and the active population. The model also follows the guidelines set forth by the International Society of Biomechanics (ISB).

An Examination Of The Effects Of Bilateral And Unilateral Very Short-Term Dcer Training On Strength And Neuromuscular Responses Within The Lower Limb Bilateral Deficit, Mark Travis Byrd

Theses and Dissertations--Kinesiology and Health Promotion

The very short-term resistance training (VST) model, utilizing only 2-3 training sessions, has been used to examine early phase skeletal muscle, neural, and performance adaptations. The VST model has previously been used to examine these early phase adaptations in bilateral and unilateral, isometric, isokinetic, and dynamic muscle actions in the limbs of the upper- and lower-body. The bilateral deficit (BLD) is a phenomenon in which the sum of the forces produced unilaterally is greater than the force produced bilaterally during maximal contraction of the limbs. The appearance of a bilateral deficit has been be related to various factors; including training …

Circadian Rhythm Phase Shifts Caused By Timed Exercise Vary With Chronotype In Young Adults, J. Matthew Thomas

Theses and Dissertations--Kinesiology and Health Promotion

The circadian system controls 24-hour cycles of behavior and physiology, such as rest-activity and feeding rhythms. The human circadian system synchronizes with, or entrains to, the light/dark cycle (sunrise/sunset) to promote activity and food consumption during the day and rest at night. However, strict work schedules and nighttime light exposure impair proper entrainment of the circadian system, resulting in chronic circadian misalignment. Numerous studies have shown that chronic circadian misalignment results in poor health. Therefore, therapeutic interventions that could shift circadian rhythms and alleviate circadian misalignment could broadly impact public health. Although light is the most salient time cue for …

Longitudinal Descriptive Profile Of Collegiate Pitchers Participating In A Summer Baseball League, Isabelle Leslie Gillis

Theses and Dissertations--Kinesiology and Health Promotion

The purpose of this study was to provide a longitudinal profile of pitching performance in a cohort of pitchers over two collegiate seasons and a summer league. Thus, this study utilized a longitudinal design to evaluate the impact of summer league participation on subsequent collegiate regular season pitching performance. Specifically, the performance of a cohort of Division 1 collegiate baseball pitchers during the 2018 Spring collegiate season, 2018 Summer League season, and the 2019 Spring collegiate season was evaluated and stratified by pitcher designation, arm dominance, and academic status. Analyses of variance were used to identify main and interaction effects …

Effects Of Curcumin And Fenugreek Soluble Fiber Supplements On Submaximal And Maximal Aerobic Performance Indices In Untrained College-Aged Subjects, Jensen Goh Zhong Sheng

Theses and Dissertations--Kinesiology and Health Promotion

Submaximal exercise performance is, in part, limited by the accumulation of metabolic byproducts and energy system capacities. Curcumin and the combination of curcumin and fenugreek soluble fiber (CurQfen^®) have been shown to increase endogenous antioxidants and metabolic byproduct clearance as well as reduce inflammation and lipid peroxidation, and therefore, may enhance submaximal aerobic thresholds. In addition, there is evidence that the galactomannan component of fenugreek, used to enhance bioavailability of curcumin, may also have potential physiological effects related to the up regulation of free fatty acid oxidation Therefore, the purpose of this study was to examine the effects …

Effect Of Strength On Velocity And Power During Back Squat Exercise In Resistance-Trained Men And Women, Andrew T. Askow, Justin J. Merrigan, Jonathan M. Neddo, Jonathan M. Oliver, Jason D. Stone, Andrew R. Jagim, Margaret T. Jones

Faculty Scholarship

The purpose was to examine load-velocity and load-power relationships of back squat in resistance-trained men (n = 20, 21.3 ± 1.4 years, 183.0 ± 8.0 cm, 82.6 ± 8.0 kg, 11.5 ± 5.0% total body fat) and women (n = 18; 20.0 ± 1.0 years; 166.5 ± 6.9 cm; 63.9 ± 7.9 kg, 20.3 ± 5.0% body fat). Body composition testing was performed followed by determination of back squat 1 repetition maximum (1RM). After at least 72 hours of recovery, subjects returned to the laboratory and completed 2 repetitions at each of 7 separate loads (30, 40, 50, …

University Of Nebraska At Omaha Department Of Biomechanics Annual Report Spring 2019, Department Of Biomechanics, University Of Nebraska At Omaha

Biomechanics Annual Report

This report contains:

A letter from the Director: Dr. Nick Stergiou

Articles about Updates: Center for Research in Human Movement Variability

Articles about the Updates: Department of Biomechanics

Articles on Exciting News

Article about Beyond the Boarders

Articles on Outreach

and Highlights

Changes On Movement Control Of Dart Throwing Under Distance And Target Weight Constraints, Carlos E. Campos, Guilherme M. Lage, Andre G.P. Andrade, Crislaine R. Couto, Suziane P. Santos, Vitor L.S. Profeta, Herbert Ugrinowitsch

Athletic Performance Research

The aim of the study was to verify the effects of dart weight and target distance on kinematic variables of the movement control of the underarm dart throwing task. Four women and one man performed the task of throwing a dart at two horizontal circular targets located at 2m (Nt) and 3m (Ft) away, with two different weights, 22g (Ld) and 44g (Hd). On the first phase of the experiment, the human volunteers performed 200 trials per day during four sessions. On the fifth day, it had 40 more trials in a pseudo random order that were recorded and analysed. …