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2021

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Articles 181 - 210 of 227

Full-Text Articles in Exercise Science

An Objective Method To Assess And Recommend Exertion And Exercise Targets For Return To Play Post Concussion, Joseph F. Clark Phd Atc, Robert E. Mangine Pt Med Atc, Kimberly A. Hasselfeld Ms, Violet T. Schramm, Angelo J. Colosimo Md, Aaron Kuehn-Himmler At Ms, Gerald M. Holloway Ms Atc, Faniel Fosselman Do Mba, Jon Vincent, Nicole Giordano, Jon G. Divine Md Ms Jan 2021

An Objective Method To Assess And Recommend Exertion And Exercise Targets For Return To Play Post Concussion, Joseph F. Clark Phd Atc, Robert E. Mangine Pt Med Atc, Kimberly A. Hasselfeld Ms, Violet T. Schramm, Angelo J. Colosimo Md, Aaron Kuehn-Himmler At Ms, Gerald M. Holloway Ms Atc, Faniel Fosselman Do Mba, Jon Vincent, Nicole Giordano, Jon G. Divine Md Ms

Journal for Sports Neuroscience

Introduction.

Concussions are of significant concern for athletic trainers, and there is a critical need to objectively and safely allow an athlete to return to play. In sports the objective is return as safely and soon as possible. Exertion is a consideration regarding progressing an athlete back to play. The ability to exert in cardiovascular and strength and conditioning contexts are two critical steps in most return to play protocols. Being able to make objective recommendations is urgently needed, as trial and error leads to unnecessary risk of eliciting symptoms and/or causing setbacks.

Objective.

The object of this paper is …


Predicting Young Adults’ Intentions And Involvement In Alcohol-Influenced Aquatic Activity, Hannah L M Calverley, Lauren A. Petrass Ph.D., Jennifer D. Blitvich Jan 2021

Predicting Young Adults’ Intentions And Involvement In Alcohol-Influenced Aquatic Activity, Hannah L M Calverley, Lauren A. Petrass Ph.D., Jennifer D. Blitvich

International Journal of Aquatic Research and Education

Globally, alcohol consumption is a public health issue and a risk factor for drownings among young adults. While studies have identified a prominence of alcohol in youth drownings, little is known about the factors that influence young adults’ involvement in alcohol-influenced aquatic activity. The current study aimed to identify the predictors of young adults’ intention to participate, and past participation, in alcohol-influenced aquatic activity. A reliable and valid survey, informed by the Theory of Planned Behavior, was distributed to young adults (aged 18-24 years) educated in the UK and Australia. Cumulative odds ordinal logistic regressions with proportional odds were …


Important Updates To Submission Types In Topics In Exercise Science And Kinesiology, James W. Navalta, Donald L. Hoover, Robert Salatto, Whitley J. Stone, Scott Lyons Jan 2021

Important Updates To Submission Types In Topics In Exercise Science And Kinesiology, James W. Navalta, Donald L. Hoover, Robert Salatto, Whitley J. Stone, Scott Lyons

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology Volume 2: Issue 1, Article 1, 2021. While Topics in Exercise Science and Kinesiology (TESK) was originally designed to fill a void in publishing applied information for practitioners in physical activity and sport, the TESK editors have determined a need to update the submission categories. The categories of Process of Science and Implementation Strategies have been retained, and three new types of submissions now will be accepted: Expedited Articles, Review Articles, and Case Studies. Process of Science submissions should seek to answer the question, “What was learned from the experience of performing the investigation?”, …


Program Implementation And Church Members' Health Behaviors In A Countywide Study Of The Faith, Activity, And Nutrition Program, John Bernhart Ph.D., Mph, Ches, Sarah Wilcox Phd, Ruth P. Saunders Ph.D., Brent E. Hutto Msph, Jessica Stucker Jan 2021

Program Implementation And Church Members' Health Behaviors In A Countywide Study Of The Faith, Activity, And Nutrition Program, John Bernhart Ph.D., Mph, Ches, Sarah Wilcox Phd, Ruth P. Saunders Ph.D., Brent E. Hutto Msph, Jessica Stucker

Faculty Publications

Implementation research of health programs in faith-based organizations is lacking. The Faith, Activity, and Nutrition (FAN) program helps churches improve physical activity and fruit and vegetable behaviors of members. This study examined associations between implementation of FAN intervention components and church members' physical activity, fruit and vegetable behaviors, and self-efficacy for improving these behaviors. FAN was implemented in 35 churches in a southeastern US county. After attending in-person training, led by community health advisors, church committees received 12 months of telephone-delivered technical assistance to implement FAN according to 4 components: increasing opportunities, increasing guidelines and policies, increasing pastor support, and …


Changes In Plasma Hydroxyproline And Plasma Cell-Free Dna Concentrations After Higher- Versus Lower-Intensity Eccentric Cycling, Georgios Mavropalias, Leslie Calapre, Michael Morici, Tomoko Koeda, Wayne C. K. Poon, Oliver R. Barley, Elin Gray, Anthony J. Blazevich, Kazunori Nosaka Jan 2021

Changes In Plasma Hydroxyproline And Plasma Cell-Free Dna Concentrations After Higher- Versus Lower-Intensity Eccentric Cycling, Georgios Mavropalias, Leslie Calapre, Michael Morici, Tomoko Koeda, Wayne C. K. Poon, Oliver R. Barley, Elin Gray, Anthony J. Blazevich, Kazunori Nosaka

Research outputs 2014 to 2021

Purpose: We examined changes in plasma creatine kinase (CK) activity, hydroxyproline and cell-free DNA (cfDNA) concentrations in relation to changes in maximum voluntary isometric contraction (MVIC) torque and delayed-onset muscle soreness (DOMS) following a session of volume-matched higher- (HI) versus lower-intensity (LI) eccentric cycling exercise.

Methods: Healthy young men performed either 5 × 1-min HI at 20% of peak power output (n = 11) or 5 × 4-min LI eccentric cycling at 5% of peak power output (n = 9). Changes in knee extensor MVIC torque, DOMS, plasma CK activity, and hydroxyproline and cfDNA concentrations before, immediately after, and 24–72 …


Journal Of Water Sanitation And Hygiene For Development Use Of Single Particle Icp-Ms To Estimate Silver Nanoparticle Penetration Through Baby Porcine Mucosa, Ilaria Zanoni, Matteo Crosera, Elena Pavoni, Gianpiero Adami, Marcella Mauro, Anna Luisa Costa, Jamie Lead, Francesca Larese Jan 2021

Journal Of Water Sanitation And Hygiene For Development Use Of Single Particle Icp-Ms To Estimate Silver Nanoparticle Penetration Through Baby Porcine Mucosa, Ilaria Zanoni, Matteo Crosera, Elena Pavoni, Gianpiero Adami, Marcella Mauro, Anna Luisa Costa, Jamie Lead, Francesca Larese

Faculty Publications

Children are potentially exposed to products that contain nanoparticles (NPs). In particular, silver NPs are commonly present both in products used by and around children, primarily due to their antibacterial properties. However, very few data are available regarding the ability of silver NPs to penetrate through the oral mucosa in children. In the present work, we used baby porcine buccal mucosa mounted on vertical Franz diffusion cells, as an in vitro model to investigate penetration of silver NPs (19 ± 5 nm). Permeability experiments were performed using pristine physiologically-relevant saline solution in the receiver chamber and known concentrations of NPs …


Trial Of Newgait System To Alter Running Mechanics In High School Athlete: A Case Report, Kathy Tooman, Jozie Weiler, Stacy Ruotsala, Sarah Breen Jan 2021

Trial Of Newgait System To Alter Running Mechanics In High School Athlete: A Case Report, Kathy Tooman, Jozie Weiler, Stacy Ruotsala, Sarah Breen

Other

Trial of NewGait System to Alter Running Mechanics in High School Athlete: a Case Report


A Comparison Of Running Economy Across Seven Carbon-Plated Racing Shoes, Dustin P. Joubert, Garrett P. Jones Jan 2021

A Comparison Of Running Economy Across Seven Carbon-Plated Racing Shoes, Dustin P. Joubert, Garrett P. Jones

Faculty Publications

Background: Advancements in running shoe technology, particularly in the Nike Vaporfly, have been shown to improve running economy. Other brands have now also developed new, advanced shoes with a carbon-fiber plate and thicker, new midsole foams. However, none of these new shoes have been compared to the Vaporfly. Therefore, we compared the effects of 7 different carbon-plated shoes and 1 traditional racing shoe on running economy.

Methods: Seven carbon-plated shoes: Hoka-RocketX (HRX), Saucony-Endorphin Pro (SEP), Nike-Alphafly (NAF), Asics-Metaspeed Sky (AMS), Nike-Vaporfly2 (NVF2), New Balance-RC Elite (NBRC), Brooks-Hyperion Elite2 (BHE2), and one traditional shoe: Asics-Hyperspeed (AHS) were tested in 12 male …


The Relationship Between Rapid Weight Loss And Physical Performance In Combat Sports, Sean P. Cavey Jan 2021

The Relationship Between Rapid Weight Loss And Physical Performance In Combat Sports, Sean P. Cavey

Honors Undergraduate Theses

The purpose of this study is to determine if there is a relationship between rapid weight loss and physical performance in combat sports athletes. The inclusion criteria were rapid weight loss and physical performance effects among combat sports researched in the last 20 years. Phrases, as well as keywords, were searched using multiple databases. The keywords included mixed martial arts (MMA), judo, wrestling, taekwondo, boxing, studies that looked at multiple disciplines at once, and unspecified disciplines. Results of the literature review indicate that there are negative effects on performance due to rapid weight loss and dehydration in combat sports. Appendix …


The Effect Of Physical Activity On Stress In University Students, Faculty, And Staff And How The Covid-19 Pandemic Affected These Variables, Zachary Parisi Jan 2021

The Effect Of Physical Activity On Stress In University Students, Faculty, And Staff And How The Covid-19 Pandemic Affected These Variables, Zachary Parisi

2021 Honors Symposium

INTRODUCTION
•
Physical activity has been shown in both college aged and broader aged sample sizes as providing health benefits in different areas from mental functioning to increasing VO2 max.
• Changes in DASS-21 made it difficult to have a large enough sample size
• Students who meet the recommendations for vigorous physical activity were less likely to report poor mental health and perceived stress when compared to other students who did not meet those recommendations.
• Within 10 days of COVID-19 being declared a pandemic, there was a 5.5% decrease in mean steps, and within 30 days there was …


The Effects Of Interventions On The Physical And Mental Health Of Undergraduate Engineering Students In North America, Jillian Prince Jan 2021

The Effects Of Interventions On The Physical And Mental Health Of Undergraduate Engineering Students In North America, Jillian Prince

2021 Honors Symposium

Background
• Stress-induced mental illnesses are common in many undergraduate engineering students
• These can include anxiety, depression, lack of motivation, poor self-regulation, and poor sleeping habits
• Ailments such as these result in decreased retention, lower grades, less cognitive understanding of material, and poor physical and mental health

Purpose
To investigate the effects of interventions on the physical and mental health of undergraduate engineering students in North America to determine what interventions are most successful.


Impact Of Activity Monitoring On Physical Activity, Sedentary Behavior, And Body Weight During The Covid-19 Pandemic, Jacob E. Barkley, Gregory Farnell, Brianna Boyko, Brooke Turner, Ryan Wiet Jan 2021

Impact Of Activity Monitoring On Physical Activity, Sedentary Behavior, And Body Weight During The Covid-19 Pandemic, Jacob E. Barkley, Gregory Farnell, Brianna Boyko, Brooke Turner, Ryan Wiet

2021 Faculty Bibliography

Decreases in individuals' physical activity and increases in sedentary behavior and bodyweight have been reported during the COVID-19 pandemic. The present study assessed the ability of physical activity monitoring, which may promote physical activity and discourage sedentary behavior, to mitigate these negative outcomes. An evaluation of university samples ( N = 404, 40.5 ± 15.4 years) of self-reported physical activity, sedentary behavior, and bodyweight prior to the closure of campus due to the pandemic in March of 2020 and again at the time of the survey administration (May-June 2020) during pandemic-related restrictions was performed. Participants also reported whether they did …


Changes In Health Behaviors During A Global Pandemic, Olivia Talamo Jan 2021

Changes In Health Behaviors During A Global Pandemic, Olivia Talamo

Senior Honors Projects

Coronavirus (COVID-19) is an infectious disease caused by the binding of SARS-CoV-2 to ACE-2 receptors. COVID-19 was first discovered in Wuhan, China in December of 2019 (CDC). By March 11, 2020 the World Health Organization (WHO) declared COVID-19 a worldwide pandemic. A COVID-19 infection can cause severe health consequences, including death. COVID-19 affects individuals of all ages. Individuals who are 60 years of age or older, and individuals with underlying medical conditions are considered vulnerable populations for severe consequences from COVID-19 infection (WHO). COVID-19 primarily spreads through physical contact. Respiratory droplets are produced from the nose and mouth when speaking, …


The Effect Of Aerobic Exercise On Children With Autism Spectrum Disorder: A Systematic Literature Review, Delaney K. Cole Jan 2021

The Effect Of Aerobic Exercise On Children With Autism Spectrum Disorder: A Systematic Literature Review, Delaney K. Cole

Honors Undergraduate Theses

The purpose of this study was to examine the effects that aerobic exercise activities can have on various stereotypical behaviors found in children on the autism spectrum. Autism spectrum disorder (ASD) is a lifelong, developmental disability that can impact how an individual communicates, behaves, as well as moves. Physical activity has long been implemented in the treatment plans of children with diagnoses along the autism spectrum; However, specific data relating to the impact of aerobic activity is quite scattered. Aerobic activities require the body to be able to take oxygen from the air around it and circulate it through the …


High Risk Environmental Conditions Attenuate Distance, Speed, And Performance Efficiency Index In Ncaa D1 Female Soccer Players, Maxine Furtado Mesa Jan 2021

High Risk Environmental Conditions Attenuate Distance, Speed, And Performance Efficiency Index In Ncaa D1 Female Soccer Players, Maxine Furtado Mesa

Electronic Theses and Dissertations, 2020-2023

PURPOSE: To evaluate the effects of environmental conditions on running performance and performance efficiency index (Effindex). METHODS: Performance data recorded using Polar Pro sensors from eight collegiate female soccer players in nine matches were analyzed during the 2019 competitive season. Effindex and running performance, including total distance covered relative to minutes played (TDREL) and distance covered in five-speed thresholds, were examined for indications of fatigue with rising environmental conditions, including ambient temperature and relative humidity. Matches were separated into three groups based on environmental condition risk: low (Low-Risk; n= 2 matches), moderate (Moderate-Risk; n=3 matches), or high (High-Risk; n=4 matches). …


Examination Of Athlete Triad Symptoms Among Endurance-Trained Male Athletes: A Field Study, Erin M. Moore, Clemens Drenowatz, David F. Stodden, Kelly Pritchett, Thaddus C. Brodrick, Brittany T. Williams, Justin M. Goins, Toni M. Torres-Mcgehee Jan 2021

Examination Of Athlete Triad Symptoms Among Endurance-Trained Male Athletes: A Field Study, Erin M. Moore, Clemens Drenowatz, David F. Stodden, Kelly Pritchett, Thaddus C. Brodrick, Brittany T. Williams, Justin M. Goins, Toni M. Torres-Mcgehee

Faculty Publications

Studies examining the physiological consequences associated with deficits in energy availability (EA) for male athletes are sparse. To examine male athlete triad components; low energy availability (LEA) with or without an eating disorder risk (ED), reproductive hormone [testosterone (T)], and bone mineral density (BMD) in endurance-trained male athletes during different training periods. A cross-sectional design with 14 participants (age: 26.4 ± 4.2 years; weight: 70.6 ± 6.4 kg; height: 179.5 ± 4.3 cm; BMI: 21.9 ± 1.8 kg/m2) were recruited from the local community. Two separate training weeks [low (LV) and high (HV) training volumes] were used to collect the …


Implementation Of Brain Breaks(R) In The Classroom And Its Effects On Attitudes Towards Physical Activity In A Chinese School Setting, Ke Zhou, Sensen He, Yanli Zhou, Biljana Popeska, Garry Kuan, Li Chen, Ming-Kai Chin, Magdalena Mo Ching Mok, Christopher R. Edginton, Ian Culpan, J. Larry Durstine Jan 2021

Implementation Of Brain Breaks(R) In The Classroom And Its Effects On Attitudes Towards Physical Activity In A Chinese School Setting, Ke Zhou, Sensen He, Yanli Zhou, Biljana Popeska, Garry Kuan, Li Chen, Ming-Kai Chin, Magdalena Mo Ching Mok, Christopher R. Edginton, Ian Culpan, J. Larry Durstine

Faculty Publications

This study aimed to examine the effects of three-months of classroom-based Brain Breaks Physical Activity Solution (Brain Breaks®) on attitudes toward physical activity levels of primary school children in Henan Province, China. The participants were 704 children enrolled in grades 3–5 who were randomly assigned to either an experimental or a control group. The experimental group participated in Brain Breaks® video intervention for 3–5 min daily, at low-to-moderate intensity for three consecutive months. The control group resumed their normal routine. The children’s attitudes in both groups towards physical activity (PA) were evaluated using the self-reported Attitudes toward Physical Activity Scale …


The Psychological Benefits Of A Remote Physical Activity Intervention In Young Adults With Autism Spectrum Disorder, Madisyn T. Pelchat Jan 2021

The Psychological Benefits Of A Remote Physical Activity Intervention In Young Adults With Autism Spectrum Disorder, Madisyn T. Pelchat

Honors Undergraduate Theses

Previous studies found that individuals with Autism Spectrum Disorder (ASD) tend to demonstrate poor health behaviors, including unhealthy nutrition habits and low physical activity (PA) levels. Growing research suggests the PA can improve ASD-related symptoms and attenuate the mental and physical adverse effects of the COVID-19 pandemic. Unfortunately, the stay-at-home order was put in place because of COVID-19, which negatively affected health behaviors in many individuals with ASD, including an increase in sedentary behavior and screen time and less PA participation. Prior research also has found that young adults with ASD are at a higher risk for obesity than their …


The Effects Of A Mirror On Cognitive Strategy And Performance Of A Muscular Endurance Task, Brianna M. Simmons Jan 2021

The Effects Of A Mirror On Cognitive Strategy And Performance Of A Muscular Endurance Task, Brianna M. Simmons

College of Graduate Studies: Theses & Dissertations

Context: Mirrors are common-place in exercise facilities, however, the effect the mirror has on cognitive strategy (i.e., where the mind’s at) and performance time has not been examined in a muscular endurance task (i.e., a wall sit). Objective: To determine, (1) the mirror’s effect on cognitive state during a wall sit to volitional exhaustion, (2) the mirror's effect on time to volitional exhaustion during a wall sit, and (3) the mirror’s effect on the participant’s rating of perceived exertion (RPE) during the wall sit. Design: Repeated measures design. Setting: Indoor exercise facility. Participants: Twenty resistance-trained Georgia Southern University Students (9 …


The Effects Of Hip Rotation On Hip Abductor Muscle Activation During Lateral Band Walk Exercise, Gina M. Fritz Jan 2021

The Effects Of Hip Rotation On Hip Abductor Muscle Activation During Lateral Band Walk Exercise, Gina M. Fritz

Electronic Theses and Dissertations

BACKGROUND: Lateral band walks (LBW) have been used to strengthen hip abductors and decrease risk of lower extremity injuries. Several methods have been used to complete this exercise to determine which has the best outcome. PURPOSE: The purpose of this study is to compare muscle activation of the gluteus medius (Gmed), gluteus maximus (Gmax), and tensor fasciae latae (TFL) during straight leg LBW exercises performed using three different hip positions: 30-degree internal rotation, 30-degree external rotation, and a neutral hip position. METHODS: Thirty-seven recreationally active participants (10 male, 27 female; age=21.4±2.2 yr; mass=71.4±13kg; height=1.7±0.1 m) completed this study. Surface EMG …


Effects Of A Dual-Task Paradigm On Tandem Gait Performance, Courtney Angela Perry Jan 2021

Effects Of A Dual-Task Paradigm On Tandem Gait Performance, Courtney Angela Perry

Cal Poly Humboldt theses and projects

In concussion management, a variety of cognitive and motor control tests, like the tandem gait, have been used for assessing the presence of a concussion injury at the sideline and through recovery. More recently, research suggests that introducing a secondary cognitive retention task during tandem gait (i.e., dual task) may provide a better assessment of concussion. The purpose of this study was to determine if a tandem gait test paired with a 6-digit retention is a valid and reliable tool. Participants completed three trials of both the single-task (ST) and dual-task (DT) tandem gait tests, and their average (MEAN) and …


Wingate Muscular Power Test Reference Values For Active Healthy Adults Ages 19-29: Normative Data And Differences Between Sex, Levi Basist Jan 2021

Wingate Muscular Power Test Reference Values For Active Healthy Adults Ages 19-29: Normative Data And Differences Between Sex, Levi Basist

Cal Poly Humboldt theses and projects

The Wingate Muscular Power Test (WMPT) has existed for several decades and to this day is considered the gold standard for evaluating an individual’s muscular power. However, the utility of this test is predicated on having accurate and relevant normative data with which to compare individual results. At present, the existing literature on this subject is either several decades old and/or inclusive of only specific subject groups (i.e. men only or sport-specific athletes). This study presents WMPT normative values for active healthy adults ages 19-29, separated by sex. The sample consisted of 330 active healthy volunteers (186 men and 144 …


Examining The Impact Of High Sodium Intake On Blood Flow Regulation, Exercise Tolerance, And Oxidative Stress In Salt Resistant Individuals, Kevin P. Decker Jan 2021

Examining The Impact Of High Sodium Intake On Blood Flow Regulation, Exercise Tolerance, And Oxidative Stress In Salt Resistant Individuals, Kevin P. Decker

Theses and Dissertations

Excessive dietary sodium consumption increases the risk for high blood pressure (BP), and therefore recommended for dietary sodium intake to be ≤ 2,300 mg/day. Recommendations are based on salt-sensitive individuals who report elevated BP with high sodium (HS) intake, but many individuals are salt-resistant (SR) who experience little to no change in BP with HS intake. Currently, less is known about the adverse cardiovascular effects of HS intake independent of BP. A potential source of impaired blood vessel function (micro- and macro-) from HS intake is oxidative stress, or the imbalance between antioxidant defense and oxidants, in favor of oxidants. …


Strength And Body Composition Changes Of Junior Hockey Players During The Competitive Season, Dan Marquette Jan 2021

Strength And Body Composition Changes Of Junior Hockey Players During The Competitive Season, Dan Marquette

Electronic Theses and Dissertations

Purpose: This study investigated the body composition and strength changes of NAHL junior hockey players across a competitive season. It was hypothesized that players would lose lean body mass loss from pre-season to end-season. The secondary hypothesis was that players would lose strength in relation to the anticipated loss in lean body mass. Methods: Outcome measurements were taken at pre-season, mid-season, and endseason points of a competitive NAHL junior hockey season (n = 15, age = 19.1 years). Body composition was measured using air plethysmography (BodPod) and strength was measured using isokinetic strength testing (Biodex). Results: No significant changes in …


Examining Eating Attitudes And Behaviors In Collegiate Athletes, The Association Between Orthorexia Nervosa And Eating Disorders, Nancy A. Uriegas, Zachary K. Winkelmann, Kelly Pritchett, Toni M. Torres-Mcgehee Jan 2021

Examining Eating Attitudes And Behaviors In Collegiate Athletes, The Association Between Orthorexia Nervosa And Eating Disorders, Nancy A. Uriegas, Zachary K. Winkelmann, Kelly Pritchett, Toni M. Torres-Mcgehee

Faculty Publications

Orthorexia nervosa (Orthorexia) is an eating attitude and behavior associated with a fixation on healthy eating, while eating disorders (EDs) are clinically diagnosed psychiatric disorders associated with marked disturbances in eating that may cause impairment to psychosocial and physical health. The purpose of this study was to examine risk for Orthorexia and EDs in student-athletes across sex and sport type and determine the association between the two. Student-athletes ( = 1,090; age: 19.6 ± 1.4 years; females = 756; males = 334) completed a survey including demographics, the ORTO-15 test (values), the Eating Attitudes Test-26 (EAT-26; >20 score), and additional …


Exertional Heat Illness Risk Factors And Physiological Responses Of Youth Football Players, Susan W. Yeargin, John J. Dickinson, Dawn M. Emerson, Jessica Koller, Toni M. Torres-Mcgehee, Zachary Y. Kerr Jan 2021

Exertional Heat Illness Risk Factors And Physiological Responses Of Youth Football Players, Susan W. Yeargin, John J. Dickinson, Dawn M. Emerson, Jessica Koller, Toni M. Torres-Mcgehee, Zachary Y. Kerr

Faculty Publications

OBJECTIVE: To determine which intrinsic and extrinsic exertional heat illness (EHI) risk factors exist in youth American football players and observe perceptual and physiological responses of players during events (games and practices). METHODS: Cross-sectional cohort study observing 63 youth football players, varying in position. Independent variables were league (weight-restricted (WR, n = 27) and age-restricted (AR, n = 36)) and event type. Dependent variables were anthropometrics, work-to-rest ratio, and wet bulb globe temperature. Descriptive variables included preparticipation examination and uniform configuration. A subset of 16 players participated in physiological variables (heart rate and gastrointestinal temperature). Data collection occurred on 7 …


Kinematic Variations Between Successful And Unsuccessful Dynamic Rock Climbing Movements, Max R. Jarvis Jan 2021

Kinematic Variations Between Successful And Unsuccessful Dynamic Rock Climbing Movements, Max R. Jarvis

EWU Masters Thesis Collection

Rock climbing as a sport and leisure activity has grown exponentially in popularity in recent years. Claims of best technique for rock climbing have been made in guide books, but are unsubstantiated. Specific upper body characteristics, determinants of climbing skill, and injury prevalence have been evaluated, but research examining climbing-specific movements has remained largely unexamined. The purpose of this study was to determine the angular kinematics and center of mass (COM) characteristics of the two-handed dynamic climbing maneuver (dyno). Participants received three attempts to complete a dyno on a 15° overhanging bouldering wall (EPIC Adventures) that were recorded via camcorder …


Comparison Of The Times To Exhaustion, Physiological, Perceptual, And Neuromusuclar Responses During Constant Heart Rate, Constant Vo2, And Constant Power Exercise, Pasquale Jiovanni Succi Jan 2021

Comparison Of The Times To Exhaustion, Physiological, Perceptual, And Neuromusuclar Responses During Constant Heart Rate, Constant Vo2, And Constant Power Exercise, Pasquale Jiovanni Succi

Theses and Dissertations--Kinesiology and Health Promotion

The purposes of this study were to: 1) Determine if there are differences in the sustainability of exercise when anchored at critical heart rate (CHR), the VO2 associated with CHR (VO2CHR), or the power output associated with CHR (PCHR); 2) examine the patterns of responses in power output, metabolic (heart rate [HR], VO2, respiration rate [RR]), neuromuscular (electromyographic [EMG] amplitude [AMP], mean power frequency [MPF], mechanomyographic [MMG] AMP and MPF, perceptual (rating of perceived exertion [RPE]), and muscle oxygenation responses (%SmO2) during exercise anchored by HR, VO2, and power output; and …


Examination Of Sex- And Limb-Specific Fatigue During Unilateral, Isometric Forearm Exercise, Caleb Christian Voskuil Jan 2021

Examination Of Sex- And Limb-Specific Fatigue During Unilateral, Isometric Forearm Exercise, Caleb Christian Voskuil

Theses and Dissertations--Kinesiology and Health Promotion

The purpose of this study was to examine the effects of unilateral, isometric handgrip holds to failure for the dominant (Dm) and non-dominant (NDm) limb on ipsilateral ([IPS] exercised side) and contralateral ([CON] non-exercised side) performance fatigability. Twenty individuals participated in this study (Men [n =10]; Women [n = 10; Composite Demographics: Age: 22.2 years; Height: 174.4 cm; Body Mass: 75.0 kg) and completed three visits. Two, 6 s maximal voluntary isometric contractions (MVICs) for the Dm and NDm limb were performed during visit 1, followed by a familiarization of the fatigue test. Visits 2 and 3 included an isometric, …


Quadriceps Recruitment And Twitch Properties In Lean And Obese Women Before And After Fatiguing Exercise, Rebekah Seay Carpenter Jan 2021

Quadriceps Recruitment And Twitch Properties In Lean And Obese Women Before And After Fatiguing Exercise, Rebekah Seay Carpenter

Theses and Dissertations--Kinesiology and Health Promotion

Skeletal muscle strength, specifically that of the anti-gravitational muscles such as the quadriceps, is essential for performing dynamic tasks including walking, navigating stairs, and transitioning between sitting and standing. Obesity has been shown to negatively impact musculoskeletal function and decrease quadriceps strength relative to body weight. Additionally, obesity has been linked with higher rates of fatigue and lower strength outcomes following a test of muscular endurance of the quadriceps. Since obesity lowers relative strength, it is likely that quadriceps muscle weakness contributes to reduced physical function of dynamic tasks. However, to date, the precise mechanism for obesity-induced muscle weakness has …