Kinesiology Commons^™

The Effects Of Muscle Cross-Sectional Area On The Physical Working Capacity At The Fatigue Threshold, Meghan B. Barry, Jorge M. Zuniga, Makenna M. Brown, William M. Garnett, Zachary V. Hadden, Paul K. Nguyen, Geoffrey A. Supplee, Claire J. Svobada

Journal Articles

Purpose: The purpose of this study was to examine the effects of quadriceps cross-sectional area (CSA) of the dominant quadriceps muscle in the assessment of the physical working capacity at the fatigue threshold (PWCFT) during incremental cycle ergometry. Methods: Eighteen adults (9 men and 9 women; mean age ± SD = 20.5 ± 1.04 yr; mean body weight ± SD = 73.9 ± 18.2 kg; mean height ± SD = 172.3 ± 11.5 cm; mean dominant quadriceps CSA ± SD = 68.7 ± 14.5 cm2) performed an incremental cycle ergometry test to exhaustion while the electromyographic (EMG) signals …

Hamstring Training Effects On Strength Gains In Ncaa Division I Varsity Soccer Players, Andrea M. Chilcote

Masters Theses

Those athletes who run at high speeds require eccentric strength when the hamstring muscles are in a lengthened state in order to absorb the increased forces, decreasing injury rate and performance deficits (Schmitt, Tyler & McHugh 2012). The purpose of this study was to determine if the intervention of an eccentric hamstring strengthening program would increase peak torque production in eccentric and concentric hamstring and quadriceps movements in Division I Men and Women Varsity soccer players.

Participants included 8 Division I soccer athletes (3 men, 5 women, mean age = 19.3 years (men) and 19.4 years (women), mean height = …

Influence Of Various Pre-Exercise Routines On Vertical Jump Performance, Vladislav Milanovic

Masters Theses

The purpose of this study was to determine and compare the influence of three different pre-exercise routines (jogging, proprioceptive neuromuscular facilitation in addition to jogging (PNFJ), and whole body vibration (WBV)) on vertical jump (VJ) performance. Twelve physically active, collegiate males between the ages of 18-24 years were recruited to participate. The subjects performed four VJ tests on four nonconsecutive days with a control VJ being performed on the first day and the three remaining VJ performed after each of the pre-exercise routines that were conducted in random order. The jogging pre-exercise routine lasted 5 minutes at light to moderate …

Effects Of Postactivation Potentiation Succeeding Glute Bridge Exercise On Multiple Jump Performance In Recreationally Trained Individuals, Anthony Warpecha

Masters Theses

The purpose of this study was to test multiple jump performance subsequent to glute bridges performed with and without whole body vibration (WBV). Multiple jump performance was assessed via a four-hop test to examine average jump height, ground contact time, and the explosive leg power factor. Twenty recreationally active subjects, ages 18-42, with more than one year of consistent recreational resistance training experience participated. Prior to testing, one familiarization session took place that involved explanation of procedures. This included practice of glute bridging on the vibration plate and the multiple hop performance test. After the familiarization session, two testing sessions …

Impact Of A Flame Resistant Synthetic Material Base Layer On Heat Stress Factors, Matthew C. Dorton

Graduate Student Theses, Dissertations, & Professional Papers

Protective clothing worn by wildland firefighters (WLFF) may increase physiological strain and heat stress factors due to increased insulation and decreased ventilation. PURPOSE: To examine the effects of a flame resistant synthetic material base layer on heat stress factors. METHODS: Ten recreationally active males (25 ± 6.1 yrs, 80.9 ± 8.4 kg, 11.1 ± 5.3% fat, 4.4 ± 0.6 L·min-1 VO2 max) completed two trials of intermittent (50 min walking, 10 min sitting) treadmill walking (4km/hr, 4% grade) over 3 hours in a hot, dry environment (35⁰C, 30% rh). Participants wore standard WLFF Nomex green pants, Nomex yellow shirt with …

The Effects Of Mouth Guards And Clenching On Strength And Power Measures Of A Countermovement Vertical Jump: A Pilot Study, Hannah M. Hudson

Honors Theses

Strength and power gains from either mouth guards or clenching have been reported in highly trained athletes from a number of studies utilizing different testing measures. However, there have not been statistically significant effects in a recreationally trained population; and there has not been a research design to combine multiple mouthpiece conditions (mouthpiece designed for performance, a traditional mouth guard, and no mouthpiece condition) with a clench and no clench sub-condition. Therefore, the purpose of this study was to evaluate potential ergogenic effects of mouth guards and clenching on strength and power measures of a countermovement vertical jump. Three recreationally …

The Acute Effect Of A Mandibular Repositioning Appliance On Force Production During An Isometric Clean Pull In Recreationally Trained Males, Daniel L. Hartman

Honors Theses

The use of a performance mouthpiece may cause notable performance changes in an isometric mid-thigh clean pull (iMTCP) due to altered muscular force production. The purpose of this study was to examine the effects of wearing various mouthpieces coupled with a clenching of the jaw on iMTCP force production. Three recreationally trained college-aged males (Age: 26.67 ± 2.89) volunteered to participate in three testing sessions separated by one week each. In the three sessions, the subject performed repetitions of an iMTCP under the following conditions: performance mouthpiece with jaw clenched (PMP-JC), performance mouthpiece with no clench (PMP-NC), traditional mouthpiece with …

Investigating The Effects Of Alternative Footwear On Balance, David S. May

Honors Theses

Falls are one of the leading causes of injuries and unintentional deaths in the United States, with 27,800 fatalities attributed to falls in 2012 (National Safety Council, 2014). With two thirds of our body mass located two thirds of our body height above the ground, humans require constant work from balance control systems to prevent these falls (Winter, 1995). Because shoes can alter somatosensory input from the mechanoreceptors on the bottom of the foot and affect these balance control systems (Menant et al, 2008), they must be taken into account when looking into the causes of falls. Traditional footwear designs …

Aerobic And Resistance Training Improves Mood State Among Adults Living With Hiv., Jason R. Jaggers, Gregory A. Hand, Wesley D. Dudgeon, Stephanie Burgess, Kenneth D. Phillips, Larry Durstine, Steven N. Blair

Faculty and Staff Scholarship

The purpose of this investigation was to examine the effects of combined aerobic and resistance exercise training among self-reported mood disturbances, perceived stress, frequency of self-reported symptoms, and symptom distress in a sample of HIV+ adults. For this purpose, 49 participants were randomly assigned into an exercise (EX) or control (CON) group. Those in the EX group completed 50 min of supervised aerobic and resistance training at a moderate intensity twice a week for 6 weeks. The CON group reported to the university and engaged in sedentary activities. Data were collected at baseline before randomization and 6 weeks post intervention. …

Influence Of Directional Loading On The Metabolic Demands Of Running In A Lower-Limb Positive Pressure Treadmill, Brendan J. Rickert, Beau K. Greer, Matthew F. Moran

Exercise Science Faculty Publications

No previous scientific investigation has studied the influence of either increasing or decreasing levels of body weight (BW) support on oxygen consumption (VO2) while running in reduced BW conditions via a differential air pressure (DAP) treadmill. Moran et al. found rate of perceived exertion to be higher at the same BW conditions when moving from high BW support to low BW support but did not quantify the findings with VO2. PURPOSE: The purpose of this study was to both define the physiological changes, if any and perceived efforts, if any, between unloading and loading subjects on DAP treadmill to define …

Healthy Eating And Physical Activity Environmental And Policy Assessment – Measurement Issues And Implications, Rahma Jamea Yousef Ajja

Theses and Dissertations

Current research has suggested that supportive healthy eating and physical activity (HEPA) policy and practice environments play a significant role in shaping the physical activity levels and eating habits of youth. Subsequently, a wide array of audit tools assessing policy and practice environment characteristics across settings that care for youth were developed. However, the extent that available audit tools accurately reflect the policy environment characteristics of the settings that care for the youth population remains unknown. Therefore, this dissertation encompasses four studies. The purpose of the first study was to examine the measurement properties of audit tools currently in use …

The Recovery Of Gut Barrier Function With Selenium Rich Diet In Acute Dss-Induced Colitis, Sarah Depaepe

Theses and Dissertations

Background: Acute Dextran Sodium Sulfate (DSS)-induced colitis is an inflammatory ailment limited to the colon. It works to destroy the morphology and gut barrier goblet and epithelial cells that aid in providing homeostasis. Selenium (Se) is an essential micronutrient that has anti-inflammatory and antioxidant properties and is known to play a role in reducing inflammation in areas elsewhere in the body. The current study is focused on how Se alters gut barrier permeability and functionality related to the recovery of tight junction regulation and mucin secretion. Methods: C57BL/6 mice were randomly placed into control (normal water) and 2% DSS water …

Correlations Between White Matter Integrity, Structural Connectivity, And Upper And Lower Extremity Motor Function In Individuals With Chronic Stroke, Denise M. Peters

Theses and Dissertations

Great variability is seen in the clinical manifestation of and recovery from stroke. Structural abnormalities often extend beyond the infarction site, indirectly affecting nonlesioned areas which can further contribute to motor deficits. Advances in neuroimaging have enabled the examination of white matter integrity and anatomical connectivity within the brain. Evidence is limited, however, regarding the relationship between the structural integrity and connectivity of primary and secondary motor tracts/brain regions and chronic upper and (especially) lower extremity motor impairments post-stroke. Therefore, the current study examined the relationship between upper/lower extremity motor impairments and structural integrity (Aim 1) and connectivity (Aim 2) …

The Acute Effects Of Multiple Resisted Sled-Pull Loads On Subsequent Sprint-Running Performances, Carl Stephen Crouse

Dissertations and Theses @ UNI

Sled-pulling is a commonly implemented form of training for various sports. However, few studies have used sled-pulling as a means of acutely enhancing sprintrunning performances. The purpose of this study was to investigate how various sledpulling resistance loads (95% and 110% of body mass) effect subsequent, unloaded, sprint-running performances, possibly with aid from the effect known as Post-Activation Potentiation (PAP). PAP is a physiological phenomenon which increases the rate of force development of skeletal muscle which may result in the enhancement of power (speed-strength) dominant activities such as sprint-running and jumping.

Participants were a mix of males (n = 11; …

Effects Of A Training Program To Enhance Autonomy Supportive Behaviors Among Youth Soccer Coaches, Jody L. Langdon, Robert J. Schlote, Brandonn S. Harris, Glenn P. Burdette Iii, Sara Rothberger

Health Sciences & Kinesiology: Faculty Publications

This study aimed to evaluate the prevalence and implementation of a training emphasizing the use of autonomy supportive coaching behaviors among youth soccer coaches in game-play situations as well as evaluating its effects on motivational processes among athletes. Participants included youth sport soccer coaches and their intact teams. Coaches received a series of autonomy-supportive coaching training interventions based on successful programs in general and physical education (Reeve, Jang, Carrell, Jeon & Barch, 2004; Cheon, Reeve & Moon, 2012). Athletes completed questionnaires to assess perceived autonomy support, basic need satisfaction, and motivation (Harris & Watson, 2011). Observations indicated coaches were not …

Effects Of Upper Body Hiit Training On Recreationally Trained Wheelchair Athletes, Tayler Elizondo

EWU Masters Thesis Collection

No abstract provided.

Gender Differences In Social Support During Injury Rehabilitation, Chelsey Ann Bruns

Dissertations and Theses @ UNI

Athletic injury can be a stress-inducing event that could have negative consequences on the psychological health of the athlete (Anderson & Williams, 1988; Gould, Udry, Bridges, & Beck, 1997). Injuries not only challenge the athlete physically, but also mentally challenge their ability to cope and overcome. A growing amount of research has indicated social support as a key factor in the rehabilitation process for an injured athlete (Yang, Peek, Lowe, Heiden, & Foster, 2010). Athletic injury causes an emotional disruption, and social support could influence the athlete’s reaction to the injury and his or her ability to cope with rehabilitation …

Youth Athlete Leaders' Use Of Transformational Behaviours And Relations To Trust In The Leader And Sport Outcomes, Amy M. Cubitt, Mark Eys

Theses and Dissertations (Comprehensive)

Leadership is one of the most crucial factors determining whether a group succeeds or fails (Bass, 1990). Furthermore, leaders displaying transformational behaviours are thought to lift followers to higher levels of motivation to get them to perform beyond expectations (Bass, 1985), and they tend to have followers who are more committed and satisfied (Bass & Riggio, 2006). Another outcome of transformational leadership in organizations is that followers are more willing to trust leaders who show care and concern for the follower (Dirks & Ferrin, 2002). The purpose of the present study was to determine if the use of full range …

The Application Of Hand Switch Costs Towards Understanding Bimanual Movements: An Investigation Throughout The Lifespan, Gordon Young

Theses and Dissertations (Comprehensive)

The objective of the present study was to examine the different kind of switch costs among a varied population using a modified bimanual serial reaction time task. Alternating between responses produce a cost of increased response time, which is termed a switch cost. However, not all switch costs are equal, and its effect on response time is dependent on what previous hand and digit combination was utilized. A detachable touchscreen tablet PC running a custom built JavaScript based software prompted participants to press down with their digits (2^nd-5^th) to corresponding buttons which would light up in …

Estimates Of Persistent Inward Current In Human Motor Neurons During Postural Sway, Ryan Foley, Jayne M. Kalmar Dr.

Theses and Dissertations (Comprehensive)

Persistent inward current (PIC) is a membrane property critical for increasing gain of motor neuron output. In humans, most estimates of PIC are made from plantarflexor or dorsiflexor motor units with the participant in a seated position with the knee flexed. This seated and static posture neglects the task-dependent nature of the monoaminergic drive that modulates PIC activation. Seated estimates may drastically underestimate the amount of PIC that occurs in human motor neurons during functional movement. The current study estimated PIC using the conventional paired motor unit technique which uses the difference between reference unit firing frequency at test unit …

Relationally-Autonomous Reasons As A Predictor Of Collegiate Athletic Performance, Josef Max Katzman

Online Theses and Dissertations

The current proposed study examines a concept that has been looked at before but now using a new specific population. Previous research examined shows that reasons for motivation affect goal attainment and success. The current study is looking at how relational autonomous reasons for motivation play a role in goal attainment in athletes. Eastern Kentucky University athletes were administered a short questionnaire and their previous athletic performance was used as well. The two sets of data were then used to examine the relationship between the two variables. The results of the study showed a positive correlation between Relationally-Autonomous Reasons (RAR) …

The Effects On Acute Power Production Enhancement And Maintenance Due To Pre-Workout Supplementation In Recreationally Trained College Aged Males., Mark Travis Byrd

Online Theses and Dissertations

Introduction: The current research in power production has shown the use of pre-workout supplements to increase peak power production, but the current research has not yet been able to delve in to the effectiveness of pre-workout supplementation on maintaining power production.

Purpose: The purpose of this study was to examine the effects on acute power production enhancement and maintenance due to supplementation in recreationally trained college aged individuals.

Methods: Data was collected from 13 recreationally trained, college-aged males in a double-blind crossover study. After a familiarization sessions subjects participated in three testing sessions utilizing a cross over double blind design …

Educational Professionals' Current Knowledge Of Concussions And Return To Learn Implementation Practice, Michelle Kuzma

Online Theses and Dissertations

Purpose of Project: The purpose of this study was to determine the knowledge level and return-to-learn concussion management guidelines for secondary school educational professionals.

Methods: Surveys were distributed to 1,334 middle and high school educational professionals. Surveys included questions regarding basic demographics, teaching and coaching experience, personal concussion experiences, general concussion knowledge, and knowledge of return-to-learn guidelines. Results: Survey response rate was 15.7% (N=210). The mean teaching experience was 13.9±8.6yr and 46.4% had previous or current coaching experience. Overall 25.8% of respondents had taken a class/clinic on concussion recognition. Of those that coached, only 49.0% took a class on concussion …

The Relationship Between Personality Type And Exercise Motivation, Kayla Michelle Bowman

Online Theses and Dissertations

Purpose: The purpose of this study was to provide further understanding of the complex nature of physical activity motivation. Specifically, the purpose of this study was to analyze personality type and internal/external autonomous regulation. Method: Subjects were college students age 18 years and older who attended the Fitness Five Project. Data collected from the Ten-Item Personality Inventory and the RM 4-FM: Motivation for Physical Activity Questionnaire were analyzed using a bivariate correlation. Results: Statistical analyses revealed the personality traits extraversion, agreeableness, conscientiousness, and emotional stability were positively associated with intrinsic motivation. Results showed the personality trait openness to experience was …

A Qualitative Examination Of The Sport Music Preferences Of Ncaa Division I Athletes, Zachary Ryan

College of Graduate Studies: Theses & Dissertations

Athletes report listening to music prior to their sport participation for a number of reasons, including: mood-regulation, arousal control, and concentration (Laukka & Quick, 2011; Sorenson, Czech, Gonzalez, Klein, & Lachowetz, 2008; Stevens & Lane, 2001). Researchers have found that many athletes report their music preferences for everyday listening are different from what they listen to around sport participation (Laukka & Quick, 2011). Music preferences have been found to be related to both gender and aspects of an individual’s personality, such as aggression (Rentfrow & Gosling, 2003; Colley, 2008; Rubin, West, & Mitchell, 2001;). The purpose of the current study …

Different Warm Up Protocols On Immediate Golf Drive Performance In Recreational Golfers, Emily Travis

EWU Masters Thesis Collection

"It has been recommended that golfers perform a warm up routine before playing. Currently, the optimal warm up routine to improve performance of a maximal golf drive is not clear, however, research does recommend active-dynamic stretching as opposed to static stretching during warm up. Currently, there have been no studies conducted using recreational golfers to research functional resistance exercises towards immediate performance of golf. The purpose of this study was to assess the effects of three different warm up protocols in recreational golfers on immediate golf performance of a maximal golf drive by measuring maximum club head speed (MCHS), maximal …

Acute Effects Of Dynamic Stretching On Flexibility And Agonist-Antagonist Muscle Activity, Lance T. Beisley

EWU Masters Thesis Collection

"Flexibility is an important determinant of health and important in sport performance. ADS and SPST are the methods most often used in training flexibility for sport. Although ADS appears to dominate SPST in measures of power and agility, the mechanisms are unclear. The purpose of this study was to delineate the effects of ADS on AROM and agonist-antagonist mean and peak EMG. The ADS protocol involved three sets of ten repetitions of leg kicks while in the supine position with the pelvis and contralateral limb fixed in extension. Participants moved the leg at the hip in a kicking motion to …

Effects Of Obesity On Slip-Related Falls Among Young Adults During Gait, Jae Eun Kim

Open Access Theses & Dissertations

Falls present serious medical, health, and societal challenges to not only the frail elderly or individuals with mobility disorders; but also the active and vigorous older adults. Slip-related falls account for about 40% of all falls among older adults. Individuals with obesity are subject to an elevated risk of falls associated with muscle weakness, abnormal body mass distribution, and postural instability. Dynamic gait stability has been identified as a key factor leading to falls after a slip during gait. Despite individuals with obesity suffer higher risk of falls compared to their lean counterparts, no study has investigated how the dynamic …

Effects Of Controlled Whole-Body Vibration Training On Reducing Risk Of Falls Among Young Adults With Obesity, Jose Jesus Munoz

Open Access Theses & Dissertations

Introduction: Among people with obesity, several factors increase the risk of falls: an abnormal body mass distribution, muscle weakness, and postural instability. Although standard exercise-based training could change these factors, a significant portion of people with obesity may be unable or unwilling to comply with long duration and high intensity training programs. Therefore, alternative training methods are highly demanded. Growing evidence supports that controlled whole-body vibration (CWBV) training can reduce risk of falls among older adults. No study has yet investigated the potential effect of CWBV training on reducing risk of falls among obese populations. The purpose of this study …

Associations Between Measures Of Obesity And Arterial Stiffness Of Young Hispanic Men, Maria Perez

Open Access Theses & Dissertations

Arterial stiffness and obesity are independent predictors of coronary heart disease and cardiovascular disease mortality; however, there is conflicting evidence for the association between arterial stiffness and obesity. Arterial stiffness research of young Hispanic males is limited. PURPOSE: To examine the association between measures of obesity and peripheral and aortic stiffness of young Hispanic men. METHODS: All data are expressed as mean ± SD. Participants were 23 non-obese (nOB; BMI 25.87±3.09 kg/m2) and 21 obese (OB: BMI 35.42±4.87 kg/m2) young Hispanic men (age range 18–25 years). Measures of obesity included body fat percentage, BMI, waist circumference, hip circumference, and waist-to-hip …