Exercise Science Commons^™

The Effects Of Static Stretching On Muscular Hypertrophy During A Resistance Training Program, Zachary A. Martin

Senior Honors Theses

Abstract

Studies have shown that static stretching right before physical activity can negatively affect performance. In regards to weight lifting, it has been shown that static stretching immediately prior to lifting can decrease the maximum amount of weight that can be lifted. This study was created in order to determine if static stretching immediately prior to weight lifting over the course of nine weeks would result in smaller gains in muscle size compared to those who did not static stretch immediately prior to lifting over the course of nine weeks.

The Effects Of Intermittent Isometric Fatigue On Concentric, Eccentric, And Isometric Torque, Robert W. Lewis Jr.

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Fatiguing intermittent isometric (ISO) muscle actions of the leg extensors have been shown to result in a similar percent (%) decline in torque for concentric (CON), eccentric (ECC), and ISO muscle actions. However, the effects of intermittent ISO fatigue of the forearm flexors on CON, ECC, and ISO torque, have not been established. The purpose of this investigation was to determine the effects of 50 maximal, intermittent ISO forearm flexion muscle actions on CON, ECC, and ISO torque. Twenty adults (10 men (mean ± SD age = 21.9 ± 2.3 years) and 10 women (mean ± SD age = 22.7 …

Test–Retest Reliability For Voluntary And Evoked Measures Of Peak Torque, Electromechanical Delay, And Rate Of Torque Development In Older Men., Nathaniel D. M. Jenkins

Department of Nutrition and Health Sciences: Dissertations, Theses, and Student Research

The purpose of this study was to examine the test-retest reliability for peak torque (PT), rates of torque development (RTD), and electromechanical delay (EMD) calculated during voluntary and evoked muscle actions in men ages 65 and older. Fifteen older men (mean ± standard deviation (SD) age = 72.3 ± 7.3 years) completed 3 evoked and 3 voluntary isometric muscle actions of the leg extensors during two visits separated by 48 to 72 h. PT and EMD were calculated during voluntary and evoked muscle actions. RTD was quantified as the peak RTD, overall RTD, RTD in time intervals of 0-30 (RTD30), …

Immediate Effects Of Neurodynamic Versus Muscle Stretching On Hamstring Flexibility In Subjects With Short Hamstring Syndrome, Yolanda Castellote-Caballero, Marie C. Valenza, Louie Puentedura, Cesar Fernandez-De-Las-Penas, Francisco Albuquerque-Sendin

Interdisciplinary Research Scholarship Day

To compare the effectiveness of an isolated neurodynamic sciatic sliding technique (Neurodynamic group) versus static stretching (Stretching group) in comparison to a Control group receiving a placebo intervention.

Effects Of Footstrike On Low Back Posture, Shock Attenuation, And Comfort In Running, Traci L. Delgado, Emilia Kubera-Shelton, Robert R. Robb, Robbin Hickman, Harvey Wallmann, Janet Dufek

Interdisciplinary Research Scholarship Day

To determine if a change from rearfoot strike (RFS) to forefoot strike (FFS) would change lumbar lordosis, influence shock attenuation, or change comfort levels in healthy recreational/experienced runners.

Effects Of Shoe Outsole Design And Incline On Walking Biomechanics, Sarah Horsch, Janet Dufek

Interdisciplinary Research Scholarship Day

The purpose of the study was to examine the effects of incline at foot contact of treadmill walking between rounded outsole (ROS) and traditional outsole (TOS) shoes. A rounded outsole shoe (ROS) is specifically designed with a fulcrum under the sole so that when the mass of the body is over it, the foot is forced to roll anteriorly. Traditional ROS studies have included analyses on bipedal stance single leg standing, muscle
activity during treadmill walking, kinetics during over ground walking, and kinematics after a 6-week accommodation period. Presently, there is no research comparing a ROS and a TOS at …

Physically Interactive Games Increase Vo2 Above Resting Metabolic Rate, Shaelee Allen, Jacob E. Barkley, Janet Dufek, Paul Hafen, Michael Jarrett, Krystina Moschella, James Navalta, Robert Rietjens, Richard Tandy, Antonio Santo

Interdisciplinary Research Scholarship Day

The purpose of this study was to determine the energy cost, beyond resting metabolic rate (RMR), of playing select games on the Nintendo Wii for 30 contiguous minutes. Physically interactive games (i.e. Basic Run and Basic Step) increase energy expenditure above resting values compared to a sedentary game (Tanks!) and therefore may help individual’s become more active. Furthermore, Basic Run and Basic Step elicited MET values of 3.9 and 3.2, respectively, which is considered moderate-intensity exercise and could be used to meet daily recommendations for physical activity.

Interactive Video Gaming Maintains Vo2 & Hr At Current Recommended Exercise Intensities For Cardiovascular Fitness, Michael Jarrett, Shaelee Allen, Jacob E. Barkley, Janet Dufek, Paul Hafen, Krystina Moschella, James Navalta, Robert Rietjens, Richard Tandy, Antonio Santo

Interdisciplinary Research Scholarship Day

The purpose of this study was to determine the energy cost of playing select games on the Nintendo Wii for 30 contiguous minutes and whether or not the physical interaction of the participant with the gaming system and subsequent physiologic intensity diminishes with playing time.

Heat Penetration Into Soft Tissue With 3 Mhz Ultrasound, Jared M. Franson

Theses and Dissertations

Therapeutic ultrasound is a deep heating modality often used to produce vigorous heating (≥4°C Δ) in tissues. The vigorous heating effects of 3 MHz therapeutic ultrasound have only been tested to a 2.5 cm depth, but its maximal depth of producing vigorous heating has yet to be established. Objective: To investigate the tissue temperature change produced by a 3 MHz ultrasound treatment at depths of 3 and 3.5 cm in the human triceps surae muscle group. Design: Randomized control design. Setting: Therapeutic modalities research laboratory. Patients or Other Participants: Twenty healthy college-aged participants (male = 13, female = 7; age …

Mtor Pathway Activation Following Resistance Exercise With Vibration In Human Subjects, Michael G. Leavitt

Theses and Dissertations

Functional adaptations in human skeletal muscle following a period of resistance exercise are the result of regular activation of cellular signaling pathways that elevate muscle protein synthesis. It has been reported that the addition of whole body vibration (WBV) to a resistance exercise program enhances performance. Such improvements in muscle function may be the result of increased activation of cellular signaling pathways associated with muscle growth. Purpose: We have investigated whether an acute bout of resistance exercise in combination with WBV results in a greater activation of the mTOR signaling pathway compared to resistance exercise alone. Methods: Eight untrained college-age …

Too Much Puff, Not Enough Push? Surf Lifeguard Simulated Cpr Performance, Kevin Moran, Jonathon Webber

International Journal of Aquatic Research and Education

The purpose of this paper is to report on the technical competency of volunteer surf lifeguards to perform CPR on a manikin in light of their lifeguard experience, age, and gender. The CPR skills of surf lifeguards on patrol at the beginning of the 2010-11 summer season were tested on manikins by observation of CPR procedures and electronic recording of compression and ventilation skills. Almost all lifeguards (n=252) made the appropriate initial checks for responsiveness (98%). Compression skills were generally performed accurately with few technical errors (such as incomplete release). Most lifeguards (87%) over-ventilated the lungs (> 600ml) on each …

Kinematic And Kinetic Analysis Of Planned And Unplanned Gait Termination In Children, Sarah T. Ridge, John Henley, Kurt Manal, Freeman Miller, James G. Richards

Faculty Publications

Gait termination is a task which requires people to alter momentum and stabilize the body. To date, many of the kinematic and kinetic characteristics of gait termination have not been reported, making it difficult for clinicians to design interventions to improve the ability to terminate gait quickly and efficiently. Therefore, the purpose of this study was to describe the lower body mechanics of healthy children as they performed walking trials, planned stopping trials, and unplanned stopping trials. Kinematic and kinetic data were collected from 15 healthy children between the ages of 11 and 17 years (14.3 ± 2.1 years). The …

Myths, Presumptions, And Facts About Obesity, Krista Casazza, Kevin R. Fontaine, Arne Astrup, Leann L. Birch, Andrew W. Brown, Michelle M. Bohan Brown, Nefertiti Durant, Gareth Dutton, E. Michael Foster, Steven B. Heymsfield, Kerry Mciver, Tapan Mehta, Nir Menachemi, P.K. Newby, Russell R. Pate, Barbara J. Rolls, Bisakha Sen, Daniel L. Smith Jr, Diana M. Thomas, David B. Allison

Faculty Publications

BACKGROUND Many beliefs about obesity persist in the absence of supporting scientific evidence (presumptions); some persist despite contradicting evidence (myths). The promulgation of unsupported beliefs may yield poorly informed policy decisions, inaccurate clinical and public health recommendations, and an unproductive allocation of research resources and may divert attention away from useful, evidence-based information.

METHODS Using Internet searches of popular media and scientific literature, we identified, reviewed, and classified obesity-related myths and presumptions. We also examined facts that are well supported by evidence, with an emphasis on those that have practical implications for public health, policy, or clinical recommendations.

RESULTS We …

Objectively Measured Sedentary Behavior In Preschool Children: Comparison Between Montessori And Traditional Preschools, Wonwoo Byun, Steven N. Blair, Russell R. Pate

Faculty Publications

Background: This study aimed to compare the levels of objectively-measured sedentary behavior in children attending Montessori preschools with those attending traditional preschools.

Methods: The participants in this study were preschool children aged 4 years old who were enrolled in Montessori and traditional preschools. The preschool children wore ActiGraph accelerometers. Accelerometers were initialized using 15-second intervals and sedentary behavior was defined as/15-second. The accelerometry data were summarized into the average minutes per hour spent in sedentary behavior during the in-school, the afterschool, and the total-day period. Mixed linear regression models were used to determine differences in the average time spent in …

Chhs January 2013 E-Newsletter, Dr. John Bonaguro, Dean, Vashon S. Wells, Editor, Wku College Of Health And Human Services

College of Health & Human Services Publications

No abstract provided.

Perceptions Of Athletic Training Services Of Japanese Collegiate Student Athletes, Jun Matsuno

Online Theses and Dissertations

Context: Athletic training is an international field. Athletes' perception or satisfaction of the services is important to improve and maintain the quality of athletic training services. This concept is important inside and outside of the United States. Objective: The purpose of this research was to investigate the perception that Japanese collegiate athletes have in regard to athletic training services. Design: An online survey was conducted to student athletes in one Japanese University that provides athletic training services to selected intercollegiate sports teams by BOC certified athletic trainers. Setting: Japanese collegiate athletic training environment. Patients or Other Participants: A total of …

Relationship Between Personality And Exercise Motivation In Weight Loss, Leanna Beth Bowles

Online Theses and Dissertations

Previous research has investigated the relationship between motivation and personality in relation to exercise participation, while the purpose of this study was to examine the relationship between these two factors in relation to weight loss. Weight and fitness scores were measured initially and at 15 month follow-up. Participants completed personality and motivation inventories at follow-up. Contrary to the hypothesis, external motivation was positively correlated with weight loss; a finding that could be due to the program design or unique to weight loss. Neuroticism was positively correlated with external motivation and negatively correlated with identified regulation. Improved fitness score was negatively …

The Examination Of Ankle Joint Motion Between Barefoot And Minimalist Running Shoes On Various Inclines, Stephanie Lloyd

Undergraduate Review

Recently various sports footwear companies have produced different types of minimalist running shoes to mimic barefoot walking or running such as Vibram FiveFingers and Nike Free Run shoes. The purpose of this study was to examine the range of dorsiflexion and plantarflexion movements at the foot in barefoot conditions in comparison to Vibram FiveFingers and Nike Free Run minimalist shoes to evaluate if the minimalist footwear would affect ankle joint motion on both flat and inclined surfaces. Five elite female runners were chosen to run on a treadmill for 30s at the speed of 3 m/s on an incline of …

The Effect Of Accurate Categorical Activity Selection On The Prediction Of Percent Body Fat When Using The Omron Hbf-306 Bioelectric Impedance Analyzer, Abby Moulton

Masters Theses

Accurate methods for assessing body composition are important in evaluating health risk and fitness levels in individuals. Bioelectric Impedance Analysis has become a popular field method for assessing body composition because it is inexpensive, noninvasive, and easy to administer. The purpose of this study was to compare the activity level settings (Normal vs. Athlete) on the Omron HBF-306 bioelectrical impedance device to the criterion method, air displacement plethysmography, to evaluate the accuracy of the settings for college age females. It was hypothesized that the "Normal" setting would be more accurate for individuals described as normal by FIT index scores and …

Relationship Between A Proxy Of Prenatal Testosterone (2d:4d) And Determinants Of Endurance Running Performance, Simon D. Holzapfel

Online Theses and Dissertations

Low ratios of the length of the second finger to the length of the fourth finger in the right (right 2D:4D) and the left hand (left 2D:4D) have been linked to high prenatal testosterone concentrations. Low R-L 2D:4D (subtracting left 2D:4D from right 2D:4D) has been associated with high androgen sensitivity as indicated by low numbers of cytosine-adenine-guanine (CAG) triplet repeats on exon-1 of the androgen receptor gene. Endurance training has led to higher increases in maximal oxygen uptake capacity (VO2max) in men with relatively low numbers of CAG triplet repeats, suggesting a relationship between R-L 2D:4D and VO2max. Moreover, …

Kinematic Adjustments During Successful And Unsuccessful Wolf Jumps On The Balance Beam, Randall L. Jensen

Conference Papers in Published Proceedings

No abstract provided.

Continuous Waveform Analysis Of Force, Velocity, And Power Adaptations To A Periodized Plyometric Training Program, Randall L. Jensen

Conference Papers in Published Proceedings

No abstract provided.

Effectiveness Of A Training Program Using An Alter-G Treadmill To Improve Physiological And Psychosocial Measures In Female Breast Cancer Survivors, Ciaran Fairman

College of Graduate Studies: Theses & Dissertations

Breast survivors often experience lower bone mineral density following treatment, and may be at a higher risk for osteoporosis and consequent falls and injuries. This study aimed to build on previous research using lower impact exercise programs by using an anti-gravity (Alter-G^®) treadmill to administer cardiovascular training. PURPOSE: The purpose of this study was to determine the effectiveness a physical activity program, including an anti-gravity (Alter-G) treadmill at improving physiological and psychosocial measures in female breast cancer survivors. METHODS: Five female breast cancer survivors were recruited to participate in the study. A 14-week intervention using an AB-AB study …

Role Of Satellite Cells In Long Term Fiber Type Shifts, Honglu Liu

Lewis Honors College Capstone Collection

Muscle fiber type shifts in respect to satellite cells, muscle stem cells, are not well understood currently. The Peterson Lab has generated a mouse model (PAX7-DTA) that ablates satellite cells to determine if these muscle stem cells contribute to mouse muscle fiber type changes over an eight week period. In the study, control and satellite-cell-ablated mouse groups were split into control and overload groups (via synergist ablation surgery) and placed under similar environmental conditions. Eight weeks post-experiment, muscles were dissected to obtain the plantaris muscles of animals from all groups. Muscle cross-sections obtained were immunohistochemically stained, imaged, quantified by fiber …

Developing Youth's Positive View Of Physical Activity, E. Whitney G. Moore

Kinesiology, Health and Sport Studies

Many youth start withdrawing from voluntary physical activity and physical education programs as they approach adolescence. Developmentally, this is also when youth can become more aware of their ability compared to others, and the amount of work it may take to improve their ability level. This focus on comparative performance standards can be affected by our coaching emphasis. This article highlights the characteristics and impacts of two coaching approaches. Particular emphasis is given to the specific behaviors adolescents have reported as fostering their effort, enjoyment, sportspersonship, and interest in continuing to be active.

Examining Administrative Attitudes Regarding The Determinants For The Expansion And Eliminations Of Intercollegiate Athletic Programs, Matthew A. Martin

EWU Masters Thesis Collection

No abstract provided.

Cardiorespiratory Responses In Healthy-Weight And Obese Women And Children, Elizabeth Ann Easley

Theses and Dissertations--Kinesiology and Health Promotion

A criterion method to evaluate cardiorespiratory health is measuring peak oxygen consumption (VO₂ peak) from a maximal graded exercise test (GXT). While VO₂ peak is a valuable measure, heart rate recovery (HRRec) and endothelial function (EF) also describe cardiorespiratory health and fitness. The purpose of this study was to investigate whether differences exist in VO₂ peak, HRRec, and EF between healthy-weight (HW) and obese (OB) women and children and to determine if there were significant correlations among these variables. A total of 60 women and children participated in this study. Anthropometric, body composition, resting heart rate and …

The Effect Of Acute Beetroot Juice Supplementation On Muscle Fatigue In Knee Extensor Exercise, Seungyong Lee

Theses and Dissertations--Kinesiology and Health Promotion

To examine the effect of acute beetroot juice supplementation on the rate of fatigue as measured by changes in peak torque.

Placebo-controlled, double-blind, cross-over study, 35 recreationally active subjects consumed beetroot (BR) juice or black currant juice (PL) 12 and 2.5 hours before the exercise procedure. Peak torque was measured on the BIODEX dynamometer by performing 50, maximal effort, concentric knee extensions at 90°/s. Blood pressure (BP) was recorded before and after exercise.

No significant difference between BR and PL in the rate of fatigue measured by change in peak torque. By stage 3, subjects retained 87.6±6.9% of strength with …

Outsmarting The Brain: Augmenting Motor Training With Non-Invasive Brain Stimulation In Order To Facilitate Plasticity-Dependent, Functional Improvement Within The Motor Cortex, Raymond Joseph Butts

Theses and Dissertations

Brain stimulation techniques capable of optimizing cortical plasticity may provide the key to improved therapeutic techniques and functional outcomes. The primary aim of this dissertation was to examine the potential of motor training (MT) augmented with intermittent theta burst stimulation (iTBS) and anodal transcranial direct current stimulation (a-tDCS). The secondary aim was to investigate whether the training would also be advantageous to older-adults. We hypothesized that right-handed, college-age students exposed to the treatment (n=17) would perform better short-term (directly following MT) and long-term (24 hours and 7 days following MT) on motor-skill retention tests than students receiving sham stimulation (n=14). …

The Effects Of A High Fat Diet On Mitochondrial Biogenesis And Inflammation In The Brain., Lauren Suzanne Vervaecke

Theses and Dissertations

INTRO: High fat diets (HFD) ingested over long periods of time have been shown to cause diet induced obesity leading to excessive adiposity and chronic low grade inflammation. Here we have shown how differing levels of saturated fats (SF), which are common storage fats, affect markers of inflammation and mitochondrial biogenesis. IL-1â and TNF-alpha are pro-inflammatory cytokines that have been shown to increase with a HFD, while molecular signalers, PGC-1alpha, cyt c, and SIRT1, related to mitochondrial biogenesis have been shown to decrease. Despite the risks of consuming a diet high in SF's, consumers continue to buy energy dense foods …