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2021

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Full-Text Articles in Kinesiology

The Influence Of A Total Body Resistance Training Program On Autonomic Modulation And Strength Variables In Young Adults, Cody Altherr, Kayla M. Soave, Paul R. Nagelkirk, Andrew T. Del Pozzi Jun 2021

The Influence Of A Total Body Resistance Training Program On Autonomic Modulation And Strength Variables In Young Adults, Cody Altherr, Kayla M. Soave, Paul R. Nagelkirk, Andrew T. Del Pozzi

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 802-814, 2021. The purpose of this study was to examine autonomic modulation using multiple quantitative measures before and after a resistance training (RT) intervention. Seventeen young adults (age 18-35 years) were tested for body composition, muscular strength, and autonomic activity. The RT protocol targeted total-body large muscle groups, which were performed three days a week for eight-weeks. Autonomic assessments included respiratory sinus arrhythmia (RSA), static handgrip exercise, Valsalva maneuver, heart rate variability (HRV), and tilt-table testing. The main finding was that tilt-table duration increased by 68 seconds (p = 0.05) after RT. Upper …


Using Brain-Breaks(R) As A Technology Tool To Increase Attitude Towards Physical Activity Among Students In Singapore, Govidasamy Balasekaran, Ahmad Arif Bin Ibrahim, Ng Yew Cheo, Phua Kia Wang, Garry Kuan, Biljana Popeska, Ming-Kai Chin, Magdalena Mo Ching Mok, Christopher R. Edginton, Ian Culpan, J. Larry Durstine Phd, Facsm, Faacvpr, Fnak Jun 2021

Using Brain-Breaks(R) As A Technology Tool To Increase Attitude Towards Physical Activity Among Students In Singapore, Govidasamy Balasekaran, Ahmad Arif Bin Ibrahim, Ng Yew Cheo, Phua Kia Wang, Garry Kuan, Biljana Popeska, Ming-Kai Chin, Magdalena Mo Ching Mok, Christopher R. Edginton, Ian Culpan, J. Larry Durstine Phd, Facsm, Faacvpr, Fnak

Faculty Publications

The purpose of this study was to investigate the effects of classroom-based Brain Breaks® Physical Activity Solution in Southeast Asia Singaporean primary school students and their attitude towards physical activity (PA) over a ten-week intervention. A total of 113 participants (8–11 years old) were randomly assigned to either an experimental (EG) or a control group (CG), with six classes to each group; the Brain Breaks® group (EG: six classes) and the Control group (CG: six classes). All EG members participated in a Brain Breaks® video intervention (three–five min) during academic classes and the CG continued their lessons as per normal. …


Plant Proteins And Exercise: What Role Can Plant Proteins Have In Promoting Adaptations To Exercise?, Chad M. Kerksick, Andrew Jagim, Anthony Hagele, Ralf Jäger Jun 2021

Plant Proteins And Exercise: What Role Can Plant Proteins Have In Promoting Adaptations To Exercise?, Chad M. Kerksick, Andrew Jagim, Anthony Hagele, Ralf Jäger

Faculty Scholarship

Adequate dietary protein is important for many aspects of health with current evidence suggesting that exercising individuals need greater amounts of protein. When assessing protein quality, animal sources of protein routinely rank amongst the highest in quality, largely due to the higher levels of essential amino acids they possess in addition to exhibiting more favorable levels of digestibility and absorption patterns of the amino acids. In recent years, the inclusion of plant protein sources in the diet has grown and evidence continues to accumulate on the comparison of various plant protein sources and animal protein sources in their ability to …


Evaluating The Effects Of Match-Induced Fatigue On Landing Ability; The Case Of The Basketball Game, Nikolaos I. Liveris, Charis Tsarbou, Panagiotis D. Tsimeas, George Papageorgiou, Sofia A. Xergia, Athanasios Tsiokanos Jun 2021

Evaluating The Effects Of Match-Induced Fatigue On Landing Ability; The Case Of The Basketball Game, Nikolaos I. Liveris, Charis Tsarbou, Panagiotis D. Tsimeas, George Papageorgiou, Sofia A. Xergia, Athanasios Tsiokanos

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 768-778, 2021. This paper examines the effect of match–induced fatigue on lower limb biomechanics, in the case of a basketball game. For this purpose, sixteen male basketball athletes, ages 18 to 22, performed a jump-landing task prior and post a recreational basketball game. The Landing Error Scoring System (LESS) was used to examine the biomechanics of landing. The Vertical jump (VJ) and the Borg Rating of Perceived Exertion (RPE) scale pre- and post-game were employed to assess the level of fatigue induced by the basketball game. In order to compare pre and post measurements, …


Effect Of Stand-Up Paddle Boarding On Hydration Status In Recreational And Competitive Individuals, Robyn Mcarthur, Jasmine Duque-Anne, James Furness, Kevin Kemp-Smith, Vini Simas, Mike Climstein Jun 2021

Effect Of Stand-Up Paddle Boarding On Hydration Status In Recreational And Competitive Individuals, Robyn Mcarthur, Jasmine Duque-Anne, James Furness, Kevin Kemp-Smith, Vini Simas, Mike Climstein

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 756-767, 2021. Stand up paddle (SUP) boarding is a popular water-based aquatic sport and recreational activity that continues to grow in popularity, however, little is known about its effect upon hydration status in recreational and elite level participants. The aim of this study was to examine the hydration status in SUP by investigating fluid loss through measurement of nude body mass. Thirty participants successfully completed the study. Hydration status was assessed by measurements of nude body mass taken pre and post SUP session. Intensity of the session was monitored throughout each session using a …


Acute Effect Of Different Duration Of Foam Rolling Protocols On Muscle Thickness, Pain Pressure Threshold, And Volume Load On Multiple Sets Of Knee Extension, Felipe Alves Brigatto, Enrico Gori Soares, Tiago Volpi Braz, Júlio Benvenutti Bueno De Camargo, Charlini Simoni Hartz, Danilo Rodrigues Batista, Luan Oenning Col, Paulo Henrique Marchetti, Marcelo Saldanha Aoki, Charles Ricardo Lopes Jun 2021

Acute Effect Of Different Duration Of Foam Rolling Protocols On Muscle Thickness, Pain Pressure Threshold, And Volume Load On Multiple Sets Of Knee Extension, Felipe Alves Brigatto, Enrico Gori Soares, Tiago Volpi Braz, Júlio Benvenutti Bueno De Camargo, Charlini Simoni Hartz, Danilo Rodrigues Batista, Luan Oenning Col, Paulo Henrique Marchetti, Marcelo Saldanha Aoki, Charles Ricardo Lopes

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 742-755, 2021. Previous studies investigated the effects of foam rolling (FR) on measurements of strength and power. However, the acute effect of FR on muscle thickness (MT) and pressure pain threshold (PPT) after multiple sets of resistance exercise remains to be elucidated. The aim of the present study was to examine the effect of one and three minutes of quadriceps FR on muscle thickness (vastus lateralis [VL] and rectus femoris [RF]), pain threshold (VL and RF), and total load lifted (TLL) on multiple sets of knee extension. Nine resistance-trained men (age: 24.8 ± 5.2 …


Creatine For Exercise And Sports Performance, With Recovery Considerations For Healthy Populations, Benjamin Wax, Chad M. Kerksick, Andrew R. Jagim, Jerry J. Mayo, Brian C. Lyons, Richard B. Kreider Jun 2021

Creatine For Exercise And Sports Performance, With Recovery Considerations For Healthy Populations, Benjamin Wax, Chad M. Kerksick, Andrew R. Jagim, Jerry J. Mayo, Brian C. Lyons, Richard B. Kreider

Faculty Scholarship

Creatine is one of the most studied and popular ergogenic aids for athletes and recreational weightlifters seeking to improve sport and exercise performance, augment exercise training adaptations, and mitigate recovery time. Studies consistently reveal that creatine supplementation exerts positive ergogenic effects on single and multiple bouts of short-duration, high-intensity exercise activities, in addition to potentiating exercise training adaptations. In this respect, supplementation consistently demonstrates the ability to enlarge the pool of intracellular creatine, leading to an amplification of the cell’s ability to resynthesize adenosine triphosphate. This intracellular expansion is associated with several performance outcomes, including increases in maximal strength (low-speed …


Promoting Responsive Bottle-Feeding Within Wic: Evaluation Of A Policy, Systems, And Environmental Change Approach, Alison K. Ventura, Karina Silva Garcia, Martha Meza, Elizabeth Rodriguez, Catherine E. Martinez, Shannon E. Whaley Jun 2021

Promoting Responsive Bottle-Feeding Within Wic: Evaluation Of A Policy, Systems, And Environmental Change Approach, Alison K. Ventura, Karina Silva Garcia, Martha Meza, Elizabeth Rodriguez, Catherine E. Martinez, Shannon E. Whaley

Kinesiology and Public Health

Background Bottle-fed infants are at greater risk for overfeeding and rapid weight gain (RWG); evidence-based strategies for promoting healthy bottle-feeding practices are needed.

Objective Our aim was to assess whether policy, systems, and environmental (PSE) strategies for promoting responsive bottle-feeding practices within the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) were associated with lower risk for RWG.

Design We conducted a matched-pair cluster randomized trial. PSE strategies were implemented at 3 WIC clinics in Los Angeles County. PSE clinics were compared with 3 matched control clinics. Mothers and infants were assessed when infants were newborn and 3 …


Effects Of Resistance Training On Muscle Quality Index, Muscle Strength, Functional Capacity, And Serum Immunoglobulin Levels Between Obese And Non-Obese Older Women, Paulo Silva, Dahan Da Cunha Nascimento, Ivo Vieira De Sousa Neto, Silvana Funghetto, Ramires Tibana, James W. Navalta, Fabiani Beal, Jonato Prestes May 2021

Effects Of Resistance Training On Muscle Quality Index, Muscle Strength, Functional Capacity, And Serum Immunoglobulin Levels Between Obese And Non-Obese Older Women, Paulo Silva, Dahan Da Cunha Nascimento, Ivo Vieira De Sousa Neto, Silvana Funghetto, Ramires Tibana, James W. Navalta, Fabiani Beal, Jonato Prestes

International Journal of Exercise Science

International Journal of Exercise Science 14(7): 707-726, 2021. Considering the negative impact of obesity on neuromuscular and immune systems, we sought to compare the effects of a 10-week resistance training (RT) program on muscle quality index (MQI), muscle strength, functional capacity, and immunoglobulins in older women with and without obesity. Thirty-nine older women participated in the present study (age: 69.02 ± 6.16, fat (%): 38.80% ± 6.28) and underwent a linear RT program performed on two non-consecutive days of the week. Body composition, functional tests, immunoglobulins, muscle quality of upper and lower limbs and absolute muscular strength of the upper …


Effect Of Huperzine A On Cognitive Function And Perception Of Effort During Exercise: A Randomized Double-Blind Crossover Trial, Chadsley M. Wessinger, Cynthia Inman, Jeremiah Weinstock, Edward Weiss May 2021

Effect Of Huperzine A On Cognitive Function And Perception Of Effort During Exercise: A Randomized Double-Blind Crossover Trial, Chadsley M. Wessinger, Cynthia Inman, Jeremiah Weinstock, Edward Weiss

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 727-741, 2021. Huperzine A has shown the ability to acutely improve cognitive function in certain populations, and therefore is commonly added to pre-workout supplements. However, its effects have not been studied in exercise-trained individuals. OBJECTIVE: We hypothesized that acute consumption of huperzine A would improve cognitive function during exercise, which may be beneficial for exercise performance. METHODS: From January to April, 2018, 15 exercise-trained individuals (11 women [height 166 ± 2 cm, weight 60.5 ± 3.0 kg] and 4 men [height 173 ± 4 cm, weight 82.0 ± 11.0 kg], BMI 23.5 ± 1.4 …


These Fish Were Made For Walking: Morphology And Walking Kinematics In Balitorid Loaches, Callie Hendricks Crawford May 2021

These Fish Were Made For Walking: Morphology And Walking Kinematics In Balitorid Loaches, Callie Hendricks Crawford

Dissertations

Terrestrial excursions have been observed in multiple lineages of marine and freshwater fishes. These ventures into the terrestrial environment may be used when fish are searching out new habitat during drought, escaping predation, laying eggs, or seeking food sources. The physiological demands for life under water and on land are vastly different and require different functional adaptations. Fish with terrestrial excursions must be capable of dealing with the stresses of both aquatic and terrestrial environments for varying periods of time. To deal with these stresses, amphibious fishes exhibit many morphological and behavioral adaptations. These adaptations have led to a range …


Relationships Between Sports, Physical Activity Participation, And Phys-Ed Gpa: Results And Analyses From A National Sample Of Asian American Students, Howard Z. Zeng, Raymond E. Weston, Juan Battle May 2021

Relationships Between Sports, Physical Activity Participation, And Phys-Ed Gpa: Results And Analyses From A National Sample Of Asian American Students, Howard Z. Zeng, Raymond E. Weston, Juan Battle

Publications and Research

Relationships among sports, physical activity (PA) participation, and educational outcomes have been studied in various venues, however, used a longitudinal method with a national sample of Asian-American High-School Students (AAHSS) was barely covered. This study employed the latest National High-School Longitudinal Study data (Participants, N = 950); hierarchical regression modeling and intersectionality theory examined, analyzed, and evaluated the relationships among sports, PA participation, and the outcomes on the physical education grade point average (Phys-Ed GPA). Moreover, the demographics factors impact on the participants' Phys-Ed GPA was also analyzed and evaluated. The primary results included: 1) the female students who participate …


Electromyography Activity Of The Teres Minor Muscle With Varying Positions Of Horizontal Abduction In The Quadruped Position, Masaaki Tsuruike, Todd S. Ellenbecker, Connor Lauffenburger May 2021

Electromyography Activity Of The Teres Minor Muscle With Varying Positions Of Horizontal Abduction In The Quadruped Position, Masaaki Tsuruike, Todd S. Ellenbecker, Connor Lauffenburger

Faculty Research, Scholarly, and Creative Activity

Background
The teres minor (TMi) muscle exposed relatively high activity during the acceleration and deceleration phases of the throwing motion, compared with the infraspinatus muscle. However, few studies have identified TMi muscle activity in intervention exercises. The purpose of this study was to investigate TMi muscle activities in different horizontal adduction positions in the quadruped horizontal abduction exercise. This study hypothesized that TMi muscle activity would differ in response to resistance application across different horizontal adduction positions.
Materials and methods
Nineteen collegiate baseball players volunteered their participation. Raw electromyography activity of the TMi muscle along with 7 different muscles attached …


The Epidemiology, Evaluation, And Assessment Of Lateral Ankle Sprains In Athletes, G. Javier Cavazos Jr., Lawrence B. Harkless May 2021

The Epidemiology, Evaluation, And Assessment Of Lateral Ankle Sprains In Athletes, G. Javier Cavazos Jr., Lawrence B. Harkless

School of Medicine Publications

Approximately 30,000 ankle injuries occur every day in the United States. With the incidence estimated at more than 3 million a year and at a rate of 2.15/1,000 in the U.S. alone, medical specialists and other healthcare providers caring for the foot and ankle must take notice. Despite the millions of ankle injuries sustained annually, the true incidence may be underestimated, as fewer than half of individuals with ankle sprains seek medical attention from healthcare professionals. The economic burden associated with the evaluation, diagnosis, and treatment is close to $4 billion annually. Ankle sprains account for half of all sports …


Developing A Practical Application Of The Isometric Squat And Surface Electromyography, David Phillips, Angelic Rose Del Vecchio, Kevin Carroll, Evan L. Matthews May 2021

Developing A Practical Application Of The Isometric Squat And Surface Electromyography, David Phillips, Angelic Rose Del Vecchio, Kevin Carroll, Evan L. Matthews

Department of Exercise Science and Physical Education Scholarship and Creative Works

Electromyography (EMG) is a research tool used in gait analysis, muscle coordination evaluation, clinical evaluation and sports techniques. Electromyography can provide an insight into neural adaptations, cross education effects, bilateral contraction deficiencies, and antagonist activity in exercise-related movements. While there are clear benefits to using EMG in exercise-related professions, accessibility, cost, and difficulty interpreting the data limit its use in strength and clinical settings. We propose a practical EMG assessment using the isometric squat to identify compensatory activation patterns and report early observations. Ten healthy participants were recruited. Participants performed a 2-min isometric handgrip protocol and an isometric squat protocol. …


The Ripple Effect: ‘Training The Trainer’ On The Impact Of Body Image Through A Dance/Movement Therapy Technique, Marina Gearhart May 2021

The Ripple Effect: ‘Training The Trainer’ On The Impact Of Body Image Through A Dance/Movement Therapy Technique, Marina Gearhart

Expressive Therapies Capstone Theses

This thesis describes the capstone project which was a psychoeducation and experiential workshop for fitness trainers. The workshop investigated the impact trainers’ work may have on the body image of their clients through a dance/movement therapy (DMT) technique. The aim was to enhance the trainers’ sensitivity around body image issues of their clients and to create a space for vulnerable movement conversation that may in turn lead to better mental health advocacy for their clients within the scope of ethical practice. The participants of the workshop were six white female identifying trainers ranging from 24 to 35 years of age. …


Exploring The Usefulness Of Mindfulness Practices Through Zoom Meetings In Reducing Anxiety And/Or Stress Of Adults With Learning And Developmental Disabilities During The Covid-19 Pandemic, Thatiane Abra May 2021

Exploring The Usefulness Of Mindfulness Practices Through Zoom Meetings In Reducing Anxiety And/Or Stress Of Adults With Learning And Developmental Disabilities During The Covid-19 Pandemic, Thatiane Abra

Expressive Therapies Capstone Theses

This thesis explored which mindfulness meditations or mindfulness practices could be beneficial in the online sessions, the extent to which adults with learning and developmental disabilities could learn the practices remotely, and how stress and anxiety disorders could be reduced through online mindfulness interventions. Furthermore, it was also necessary to address the online sessions as the only mental health treatment possibility during the Coronavirus pandemic for the clients observed and the benefits and limitations of these interventions. Additionally, the importance of structure and routine for this population, the multi-modal structure of the interventions, and how attunement plays an important role …


Obesity Prevention Toolkit To Combat Weight Gain Related To Sedentary Behavior And Dietary Habits In College Students: An Evidence-Based Project, Maria Amos, Martha Fuller May 2021

Obesity Prevention Toolkit To Combat Weight Gain Related To Sedentary Behavior And Dietary Habits In College Students: An Evidence-Based Project, Maria Amos, Martha Fuller

Doctor of Nursing Practice Final Manuscripts

Abstract

Background: Forty percent of the US population ages 20-39 are categorized as obese,

their BMI is over 30, and 35% of college age students are obese or overweight. Issues related to obesity cost the US $147 billion annually. Between 40%-50% of college students are reported to be inactive. Inactivity can lead to increased morbidity and mortality related to increased risks of cardiovascular disease, diabetes, hypertension, musculoskeletal issues, and depression. Providing dietary and physical activity education and access to nutritional information promotes behavior change in young adults.

Aims of Service Change: This evidence-based project proposal aims to provide a toolkit …


Validity And Test-Retest Reliability Of The Jumpo App For Jump Performance Measurement, Amilton Vieira, Anthony J. Blazevich, Alexandre Souza Da Costa, James J. Tufano, Martim Bottaro May 2021

Validity And Test-Retest Reliability Of The Jumpo App For Jump Performance Measurement, Amilton Vieira, Anthony J. Blazevich, Alexandre Souza Da Costa, James J. Tufano, Martim Bottaro

International Journal of Exercise Science

International Journal of Exercise Science 14(7): 677-686, 2021. The vertical jump test is one of the simplest and most prevalent physical tests used in practice and research. This study investigated the validity and reliability of a new mobile application (Jumpo) for measuring jump performance on Android devices. University-aged students (n = 10; 20 ± 3 years; 176 ± 6 cm; 68 ± 9 kg) reported to the laboratory on three occasions (2-7 days apart): to be familiarized with the jump performance measurements and then for test-retest reliability assessments. Participants performed countermovement jumps (CMJ), squat jumps (SJ), and right and …


Relationship Of Biological Maturation With Muscle Power In Young Female Athletes, Paulo Francisco De Almeida-Neto, Alexandre Bulhões-Correia, Dihogo De Matos, Phelipe Wilde De Alcântara Varela, Vanessa Carla Monteiro Pinto, Paulo M. Dantas, Felipe Aidar, Breno Guilherme De Araujo Tinoco Cabral May 2021

Relationship Of Biological Maturation With Muscle Power In Young Female Athletes, Paulo Francisco De Almeida-Neto, Alexandre Bulhões-Correia, Dihogo De Matos, Phelipe Wilde De Alcântara Varela, Vanessa Carla Monteiro Pinto, Paulo M. Dantas, Felipe Aidar, Breno Guilherme De Araujo Tinoco Cabral

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 696-706, 2021. There is still no consensus on how biological maturation (BM) affects the muscle power of upper and lower limbs in young people. The objective was to verify associations between BM and muscle power, as well as to compare the muscle power of upper (ULP) and lower limbs (LLP) among young athletes in different stages of BM. The sample consisted of 79 female athletes (10.9 ± 1.11 years old). Regarding BM, the sample was divided into three groups: delayed BM, synchronized BM, and accelerated BM. BM was identified by subtracting chronological age from …


Development And Reliability Of A 7×15m Repeated On-Ice Sprint Test For Female Ice Hockey Players, Kier Wilson, Joel Jackson, Gary Snydmiller, Gordon Bell May 2021

Development And Reliability Of A 7×15m Repeated On-Ice Sprint Test For Female Ice Hockey Players, Kier Wilson, Joel Jackson, Gary Snydmiller, Gordon Bell

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 666-676, 2021. The purpose of this investigation was to design and examine the reliability of a 7×15m repeated on-ice skating sprint test for female ice hockey players. Seventeen women ( ± SD age, height and body mass = 21 ± 2 years, 166.2 ± 6.4 cm and 61.9 ± 7.7 kg, respectively) completed 7 consecutive on-ice sprints of 15m repeated every 15s. Two trials of the test were performed on the same day and then repeated on a different day approximately 1 week later for a total of 4 trials. The fastest 15m time, …


Conservative Clothing Effects On Body Composition Assessment By Air Displacement Plethysmography, Shaun L. Orvell, Kasuen Mauldin, John Gieng May 2021

Conservative Clothing Effects On Body Composition Assessment By Air Displacement Plethysmography, Shaun L. Orvell, Kasuen Mauldin, John Gieng

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 687-695, 2021. Form-fitting spandex swimsuits or single-layer compression shorts are recommended during BOD POD® testing to ensure accurate results. The purpose of this study was to evaluate the effects of various outfit types on body composition measurements using the BOD POD®, and self-reported comfort level wearing each outfit. Twenty-one participants, 8 females and 13 males, (age 31.6 ± 9.8 years) wore a spandex swim cap and three different outfits during BOD POD® testing (manufacturer-recommended form-fitting spandex swimsuit, short sleeve spandex, long sleeve spandex). Measured variables include body mass, body fat percentage, …


Differences In ​The Proportion Of Children Meeting Behavior Guidelines ​Between Summer ​And School By Socioeconomic Status And Race, Ethan T. Hunt, Lauren Von Klinggraeff, Alexis Jones, Sarah Burkart, Roddrick Dugger, Bridget Armstrong Ph.D., Michael Beets Ph.D., Gabrielle Turner-Mcgrievy Ph.D., Rd, Marco Geraci, Robert Glenn Weaver Med, Phd May 2021

Differences In ​The Proportion Of Children Meeting Behavior Guidelines ​Between Summer ​And School By Socioeconomic Status And Race, Ethan T. Hunt, Lauren Von Klinggraeff, Alexis Jones, Sarah Burkart, Roddrick Dugger, Bridget Armstrong Ph.D., Michael Beets Ph.D., Gabrielle Turner-Mcgrievy Ph.D., Rd, Marco Geraci, Robert Glenn Weaver Med, Phd

Faculty Publications

Objective

Children who fail to meet activity, sleep, and screen-time guidelines are at increased risk for obesity. Further, children who are Black are more likely to have obesity when compared to children who are White, and children from low-income households are at increased risk for obesity when compared to children from higher-income households. The objective of this study was to evaluate the proportion of days meeting obesogenic behavior guidelines during the school year compared to summer vacation by race and free/reduced priced lunch (FRPL) eligibility.

Methods

Mixed-effects linear and logistic regressions estimated the proportion of days participants met activity, sleep, …


Synthetic Gene Circuits For Self-Regulating And Temporal Delivery Of Anti-Inflammatory Biologic Drugs In Engineered Tissues, Lara Pferdehirt May 2021

Synthetic Gene Circuits For Self-Regulating And Temporal Delivery Of Anti-Inflammatory Biologic Drugs In Engineered Tissues, Lara Pferdehirt

McKelvey School of Engineering Graduate Student Theses & Dissertations

The recent advances in the fields of synthetic biology and genome engineering open up new possibilities for creating cell-based therapies. We combined these tools to target repair of articular cartilage, a tissue that lacks a natural ability to regenerate, in the presence of arthritic diseases. To this end, we developed cell-based therapies that harness disease pathways and the unique properties of articular cartilage for prescribed, localized, and controlled delivery of biologics, creating the next generation of cell therapies and new classes of synthetic circuits. We created tissue engineered cartilage from murine induced pluripotent stem cells that had the ability to …


Subject-Specific Musculoskeletal Modeling Of Hip Dysplasia Biomechanics, Ke Song May 2021

Subject-Specific Musculoskeletal Modeling Of Hip Dysplasia Biomechanics, Ke Song

McKelvey School of Engineering Graduate Student Theses & Dissertations

Developmental dysplasia of the hip (DDH) is characterized by abnormal bony anatomy, causes pain and functional limitations, and is a prominent risk factor for premature hip osteoarthritis. Although the pathology of DDH is believed to be mechanically-induced, little is known about how DDH anatomy alters hip biomechanics during activities of daily living, partly due to the difficulties with measuring hip muscle and joint forces. Musculoskeletal models (MSMs) are useful for dynamic simulations of joint mechanics, but the reliability of MSMs for DDH research is limited by an accurate model representation of the unique hip anatomy. To address such challenges, this …


Description, Reliability And Validation Of A Novel Ground-Reaction-Force-Triggered Protocol For Simulation Of Tripping Perturbations During Gait, James Anderson, Samuel Hadley, Denise Ng, Catrina Fabian May 2021

Description, Reliability And Validation Of A Novel Ground-Reaction-Force-Triggered Protocol For Simulation Of Tripping Perturbations During Gait, James Anderson, Samuel Hadley, Denise Ng, Catrina Fabian

UNLV Theses, Dissertations, Professional Papers, and Capstones

Tripping is a common cause of falls across different age populations particularly in older adults. Concerns regarding the validity of simulated-fall research protocols reside in the current literature. The purpose of this study was to develop a novel treadmill-based tripping protocol that allowed researchers to deliver unanticipated tripping perturbations during walking with a high level of timing precision. The protocol utilized a side-by-side split-belt treadmill instrumented with force platforms. Treadmill belt acceleration profiles (two levels of perturbation severity: small perturbation vs large perturbation) were delivered unilaterally when the tripped leg bore 20% of the body weight during early stance. Peak …


Proceedings From The Second Annual Society For Neurosports Conference, William R. Kochen May 2021

Proceedings From The Second Annual Society For Neurosports Conference, William R. Kochen

Journal for Sports Neuroscience

Proceedings from the Second Annual Society for NeuroSports Conference


Physical Activity Interventions For Older Adults In The Age Of Covid-19 And Beyond, Rachel N. Bragg, K. Jason J. Crandall May 2021

Physical Activity Interventions For Older Adults In The Age Of Covid-19 And Beyond, Rachel N. Bragg, K. Jason J. Crandall

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology Volume 2: Issue 1, Article 6, 2021. As the coronavirus (COVID-19) pandemic continues, it is important to understand why older adults are at higher risk for more severe morbidity and higher mortality compared to younger age groups. At the same time, there is a growing body of evidence suggesting physical activity and exercise can have positive benefits for older adults’ health. Point of application #1: The first step in keeping older adults active is motivating them to adhere to a structured program either at home, in a community setting, or in a long-term care …


Effect Of Test Sequence On Maximal Anaerobic And Aerobic Power Achievement In Adults, Luke E. Stong, Luke Haile, Kyle S. Beyer, Joseph L. Andreacci May 2021

Effect Of Test Sequence On Maximal Anaerobic And Aerobic Power Achievement In Adults, Luke E. Stong, Luke Haile, Kyle S. Beyer, Joseph L. Andreacci

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 657-665, 2021. The purpose of this study was to examine the effect of test sequence on adults’ ability to achieve maximal aerobic and anaerobic power during a single assessment visit. Forty-one adults (24 men, 17 women; 22.0 ± 1.8 years) completed two baseline visits in randomized order consisting of either a maximal oxygen consumption (V̇O2max) or Wingate anaerobic test (WAnT). The subsequent experimental visit consisted of both V̇O2max and WAnT in randomized order separated by 20 minutes of rest. Mixed-model ANOVAs compared baseline and experimental performance between and within groups. Chi …


Order Of Resistance Training Cycles To Develop Strength And Muscle Thickness In Resistance-Trained Men: A Pilot Study, Julio Benvenutti Bueno De Camargo, Felipe Brigatto, Tiago Volpi Braz, Moisés Diego Germano, Gabriela Silva Nascimento, Raphael Machado Da Conceição, Ivan Teixeira, Tulio Sanches, Marcelo Saldanha Aoki, Charles Ricardo Lopes May 2021

Order Of Resistance Training Cycles To Develop Strength And Muscle Thickness In Resistance-Trained Men: A Pilot Study, Julio Benvenutti Bueno De Camargo, Felipe Brigatto, Tiago Volpi Braz, Moisés Diego Germano, Gabriela Silva Nascimento, Raphael Machado Da Conceição, Ivan Teixeira, Tulio Sanches, Marcelo Saldanha Aoki, Charles Ricardo Lopes

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 644-656, 2021. The aim of the present study was to assess the chronic effects of different order of resistance training cycles on strength and muscle thickness of recreationally resistance-trained men. The study sample was composed of 16 healthy men (age: 25.0 ± 3.8 years, height: 1.77 ± 7.6 cm, total body mass: 81.7 ± 10.4 kg, RT experience: 4.6 ± 0.7 years, relative bench press one repetition maximum: 1.2 ± 0.1, relative squat one-repetition maximum: 1.5 ± 0.2). According to baseline maximal strength, participants were allocated in one of the following groups: Maximal Strength-Strength …