Kinesiology Commons^™

Musculoskeletal Injury In Reserve Officers' Training Corps: A Report From The Athletic Trainers' Practice-Based Research Network, Kara N. Radzak, Joellen M. Sefton, Mark K. Timmons, Rachel Lopp, Christopher D. Stickley, Kenneth C. Lam

Kinesiology and Nutrition Sciences Faculty Research

Background: Reserve Officers’ Training Corps (ROTC) cadets must meet the same physical standards as active duty military servicemembers and undergo organized physical training (PT). ROTC participation, like all physical activity, can result in trainingrelated musculoskeletal injury (MSKI), and of course, cadets could sustain MSKI outside of ROTC. However, MSKI incidence in ROTC programs is largely unknown. Purpose: To describe patient and injury demographics of MSKI in 5 universities’ Army ROTC programs. Study Design: Descriptive epidemiology study. Methods: A retrospective chart review of electronic medical records was performed using the Athletic Training Practice-Based Research Network (AT-PBRN). Athletic trainers at 5 clinical …

Establishing A Methodology For Conducting A Rapid Review On Wearable Technology Reliability And Validity In Applied Settings, Brenna Barrios, Bryson Carrier, Brayden Jolley, Dustin W. Davis, Jacquelyn Sertic, James W. Navalta

Topics in Exercise Science and Kinesiology

• Wearable technology is becoming increasingly popular with new devices entering the market frequently, but with disproportionality less research being conducted on the reliability and validity in field settings, outside of the laboratory.
• This paper details the methodology of gathering research based on the principals of a rapid review, using these points of application: inclusion criteria of studies (databases), search terms (data to be extracted), and how research will be conducted (narrowing articles and assessing bias).
• Point of application #1: Inclusion criteria are described well as potential databases used, allowing a means of not only systematically gathering information, but also the …

Measurement Of Human Walking Movements By Using A Mobile Health App: Motion Sensor Data Analysis, Sungchul Lee, Ryan M. Walker, Yoohwan Kim, Hyunhwa Lee

Computer Science Faculty Research

Background: This study presents a new approach to measure and analyze the walking balance of humans by collecting motion sensor data in a smartphone. Objective: We aimed to develop a mobile health (mHealth) app that can measure the walking movements of human individuals and analyze the differences in the walking movements of different individuals based on their health conditions. A smartphone's motion sensors were used to measure the walking movements and analyze the rotation matrix data by calculating the variation of each xyz rotation, which shows the variables in walking-related movement data over time. Methods: Data were collected from 3 …

The Association Between Medication Use And Gait In Adults With Intellectual Disabilities, S. Maas, D. A.M. Festen, Thessa I.M. Hilgenkamp, A. Oppewal

Physical Therapy Faculty Research

Background: Adults with intellectual disabilities (ID) often have polypharmacy and often use antipsychotics. Both polypharmacy and antipsychotics have a negative effect on gait in the general population, but this has not been studied in adults with ID. These negative effects may add to pre‐existing gait disturbances in adults with ID and increase the risk for adverse health outcomes in this population. Therefore, the aim of this study is to investigate the difference in gait parameters between adults with ID with and without polypharmacy and between adults with ID using and not using antipsychotics. Method: The gait parameters of 31 participants …

Concurrent Heart Rate Validity Of Wearable Technology Devices During Trail Running, James W. Navalta, Jeffrey Montes, Nathaniel G. Bodell, Robert W. Salatto, Jacob W. Manning, Mark Debeliso

Kinesiology and Nutrition Sciences Faculty Research

Validation of heart rate responses in wearable technology devices is generally composed of laboratory-based protocols that are steady state in nature and as a result, high accuracy measures are returned. However, there is a need to understand device validity in applied settings that include varied intensities of exercise. The purpose was to determine concurrent heart rate validity during trail running. Twenty-one healthy participants volunteered (female n = 10, [mean (SD)]: age = 31 [11] years, height = 173.0 [7] cm, mass = 75.6 [13] kg). Participants were outfitted with wearable technology devices (Garmin Fenix 5 wristwatch, Jabra Elite Sport earbuds, …

Effects Of Caffeinated And Non-Caffeinated Gum On Premotor, Motor, And Overall Reaction Time, Ashton E. Holliday, Maelee A. Wells, Rebecca R. Rogers, Joseph A. Pederson, Tyler Williams, Christopher G. Ballmann

Topics in Exercise Science and Kinesiology

• Chewing gum and caffeine when used independently and concurrently increase neural activity ultimately improving reaction time but less is known about how caffeinated gum influences distinct phases of the reaction time response.
• Physically active college females (n=14) completed a 60-second reaction time test on a visuomotor board under the following counterbalanced conditions: 1) Baseline, 2) Non-caffeinated gum, 3) Caffeinated gum (300 mg caffeine).
• Point of application #1: Chewing gum improved premotor reaction time compared to baseline, but caffeine did not provide additional benefit.
• Point of application #2: Neither non-caffeinated nor caffeinated gum improved motor reaction times from baseline.
• Point of …

The Influence Of Cerebellar Transcranial Direct Current Stimulation On Motor Function In Parkinson’S Disease, Lidio Lima De Albuquerque

UNLV Theses, Dissertations, Professional Papers, and Capstones

Parkinson's disease (PD) is the most common movement disorder and the second most common neurodegenerative disorder. PD is characterized by dopaminergic cell loss in the substantia nigra pars compacta, which leads to a reduction in dopamine in the striatum. These physiological mechanisms lead to a number of motor impairments such as bradykinesia, rigidity, tremor, and postural instability that severely limit the ability of individuals with PD to perform many essential daily living activities. Although current pharmacological, surgical, and physical exercise treatment approaches are valuable they are either only mildly effective, expensive, or associated with a variety of side effects. Therefore, …

Does Wearing Multiple Pairs Of Shoes Influence Injury Rates?, Julien Mihy

UNLV Theses, Dissertations, Professional Papers, and Capstones

Running research has attempted to better understand the causes of movement-related injuries and a large segment of this research revolves around footwear and training regimens. A survey has reported lower injury rates in runners who wore multiple shoes with in a 5-month period. Previous literature lacks the analysis of variables leading to training related decisions and whether wearing multiple pairs of shoes can have an extended influence on injury rates. PURPOSE: To determine whether wearing multiple pairs of shoes has an influence on injury rates. METHODS: A survey was developed to ask participant’s injury related history along with their footwear, …

Rowing Ergometer Kinematics Of Collegiate Female Rowers, Christina Lemunyon, Kevin Carlson

Topics in Exercise Science and Kinesiology

• The purpose was to quantify rowing kinematics of female rowers and compare how rowing mechanics concurred with the rowing style taught by the coaching staff.
• Rowing kinematics at various paces were captured using Xsens motion capture hardware and processing software.
• Point of application 1: Lack of knee extension at the end of the drive phase limited the knee range of motion and time for force development.
• Point of application 2: Elbow flexion and hip extension occurred too early in the stroke leading to poor skeletal segmental interactions.
• Point of application 3: It was determined that the rowers examined in this …

Efficient Method Of Delivery For Powdered Supplement Or Placebo For An Outdoor Exercise Investigation, R W. Salatto, Dustin W. Davis, Bryson Carrier, Brenna Barrios, Jacquelyn Sertic, Peyton Cater, James W. Navalta

Topics in Exercise Science and Kinesiology

• Researchers often encounter issues while attempting to deliver complete doses of a desired supplement/placebo when conducting research in outdoor environments. The problem faced by our research team was how to efficiently deliver 6.4 grams of Beta Alanine (BA) powder to subjects while conducting a hiking study on a windy trail in Southern Utah. To minimize the potential impact of the weather, and to maximize the efficiency of delivery, we determined a premixed bolus of BA contained in individual commercially available 8oz water bottles was the most efficient delivery method. The purpose of this article is to detail the development and …

Utilizing Breathing Techniques To Maximize Training Performance, Peyton Cater

UNLV Theses, Dissertations, Professional Papers, and Capstones

Anaerobic exercise causes metabolic acidosis to occur in the muscle, which is unfavorable for sustaining high intensity activity, as fatigue starts to set in. In order to compensate for the onset of fatigue produced by an acidic environment, respiratory alkalosis, induced by hyperventilation, can be performed to mitigate these effects. In contrast, research has shown that slowing down the breath rate, such as a two second inhale and three second exhale, has led to an increase in performance outcomes. Purpose: To investigate power output and the physiological responses after implementation of different breathing techniques during the recovery periods of intermittent …

Respiratory And Perceptual Responses To High Intensity Interval Exercise In Obese Adults, Nicholas Andrew Ross

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose: Obese adults experience low lung volume breathing at rest and during exercise, which provokes ventilatory constraints and dyspnea on exertion. High-intensity interval exercise (HIIE) has emerged as an alternative to continuous exercise (CE); however, the effects of HIIE on lung volumes, ventilatory constraints and dyspnea on exertion have not been studied in obese adults and thus tolerability of HIIE remains unknown. Therefore, the purpose of this study was to examine the differences in respiratory and perceptual responses during HIIE versus CE in obese adults when compared with nonobese adults. Methodology: Ten healthy, nonobese (24.1 ± 6.2 yr., BMI: 23 …

Defining Athletic Training In The Military Setting: A Survey Investigation Into Professional Characteristics, Preparation, And Barriers In Clinical Practice, Kara N. Radzak, Edward J. Sedory, Michael Hooper, Tricia M. Kasamatsu

Kinesiology and Nutrition Sciences Faculty Research

Context: The skill sets of athletic trainers (ATs) provide a unique contribution to the US military's optimization of physical readiness, and these positions are becoming more prevalent. However, knowledge regarding the job characteristics of, and ATs' preparation for, employment in a military setting is limited. Objective: To assess the position and clinician characteristics of ATs working with military members and document their perceptions of working in the military setting. Design: Cross-sectional study. Setting: Online survey. Patients or Other Participants: A total of 53 ATs who currently or formerly worked in the military setting. Data Collection and Analysis: A Web-based survey …

Do Compression Garments Work? The Effect Of Compression Garments On Biomechanical And Physiological Factors, Andrew Craig-Jones

UNLV Theses, Dissertations, Professional Papers, and Capstones

New and innovative technology is consistently being introduced to help runners gain an edge over their competition. One of the more popular ergogenic aids in running today is compression garments. It is estimated that the compression garment market will surpass $5 billion by the year 2022. Despite the popularity, there is no clear consensus as to if or why compression is effective as an ergogenic aid. Although there has been a large variety of variables tested, there is little agreement on any of them as to the effect compression has. It appears as if the rate at which compression is …

Partitioning The Mechanical Cost Of Human Walking: Unveiling Cost Asymmetries For Bionic Technologies, Michael Richard Isaacs

UNLV Theses, Dissertations, Professional Papers, and Capstones

Biomechanics studies over the past 150 years, suggest that animals, including humans, move at speeds that “optimize” their cost of transport. These optimizations can be metabolic, mechanical, or a mixture of the two; however, the consensus on the relationship between metabolic and mechanical cost has been muddied by our current conceptualizations of mechanical cost. Our prior considerations in assessing mechanical cost of transport for animal locomotion often rely upon the exchange of potential and kinetic energy for a rising and falling center of mass that is supported by rigid legs. As a result, our understanding of the mechanical costs associated …

Investigation Of Acute Response To Carbohydrate In Subsequent Resistance Training, Damon Mccune

UNLV Theses, Dissertations, Professional Papers, and Capstones

Resistance training has been shown to have several positive benefits to health including increasing muscle size and strength, reducing risk of sarcopenia with aging, and is associated with reduced risk of mortality. A cornerstone in accomplishing these goals is to progressively overload the muscle by increasing training volume to promote muscle protein synthesis following training stimulation. Total training volume has been demonstrated in the literature to be a prime determinant of muscle hypertrophy and overall training performance. Carbohydrate (CHO) manipulation has been observed as a potential ergogenic aid when training demands are high. Current research investigating nutrition related to exercise …

The Influence Of Motivational And Attentional Focus Factors On Throwing Accuracy In Elite Softball Athletes, Jacquelyn Sertic

UNLV Theses, Dissertations, Professional Papers, and Capstones

According to the OPTIMAL theory of motor learning (Wulf & Lewthwaite, 2016), autonomy support (AS), enhanced expectancies (EE), and external focus (EF) of attention are key to effective motor performance and learning. AS allows individuals to exercise control, EE

provides performers with an increased sense of confidence, and EF directs attention to the intended movement effects. Previous research indicates that these factors individually and collectively can improve motor performance and learning in novices and experienced performers. Few studies have used elite performers as participants. Purpose: To determine whether skilled throwing performance can be enhanced by a successive implementation of AS, …

Validity And Reliability Of Three Commercially Available Smart Sports Bras During Treadmill Walking And Running, James W. Navalta, Gabriela Guzman Ramirez, Crystal Maxwell, Kara N. Radzak, Graham R. Mcginnis

Kinesiology and Nutrition Sciences Faculty Research

A variety of wearable technology devices report heart rate. Heart rate sensing smart bras are manufactured for females who participate in activity, however accuracy has not been determined. The purpose was to determine the validity of heart rate measures in three commercially available sports bras during walking and running. Twenty-four healthy females completed bouts of treadmill exercise. The Adidas Smart sports bra, Berlei sports bra, and Sensoria Fitness biometric sports bra were tested. Participant perception of each garment was obtained immediately after the participant divested the sports bra. The Adidas Smart sports bra was valid only during rest (Intraclass correlation …

Integrating The Functional Movement Screen ® Into Strength And Conditioning Programs, Quincy Johnson, Chantel C. Coleman, Timothy Baghurst

Topics in Exercise Science and Kinesiology

• The purpose of this article is to provide an overview of the Functional Movement Screen (FMS®) and how it can be integrated into strength and conditioning programs of all levels.
• We utilized current literature and previous FMS ® field experience to develop and recommend approaches for implementing FMS® protocols into strength and conditioning programs.
• Description of FMS® Movements: The FMS® is a comprehensive biomechanical efficiency screen which is comprised of seven movements that have been deemed fundamental to athletic performance (7). Those movements include the; deep squat, hurdle step, in-line lunge, shoulder mobility, active straight-leg raise, trunk stability push-up, and …

Kinematic Analyses Of Parkour Landings From As High As 2.7 Meters, Boyi Dai, Jacob S. Layer, Taylour J. Hinshaw, Ross F. Cook, Janet S. Dufek

Integrated Health Sciences Faculty Research

During landing tasks, forces and moments are generated by the musculoskeletal system at surface contact to progressively decelerate the velocity of the body (Dufek and Bates, 1990; McNitt-Gray, 1993). When landing after a forward jump, the body’s downward velocity must be decelerated by an upward acceleration, while its forward velocity needs to be decelerated by a backward acceleration. Inappropriate landing patterns can cause excessive loading to the body, resulting in musculoskeletal injuries. The anterior cruciate ligament is commonly injured by abnormal landing patterns during athletic activities (Dai et al., 2015b; Krosshaug et al., 2007). Military training also involves jump-landing tasks …

Step Count Reliability And Validity Of Five Wearable Technology Devices While Walking And Jogging In Both A Free Motion Setting And On A Treadmill, Jeffrey Montes, Richard Tandy, John Young, Szu-Ping Lee, James W. Navalta

Kinesiology and Nutrition Sciences Faculty Research

Wearable technology devices are used by millions of people who use daily step counts to promote healthy lifestyles. However, the accuracy of many of these devices has not been determined. The purpose was to determine reliability and validity of the Samsung Gear 2, FitBit Surge, Polar A360, Garmin Vivosmart HR+, and the Leaf Health Tracker when walking and jogging in free motion and treadmill conditions. Forty volunteers completed walking and jogging free motion and treadmill protocols of 5-minute intervals. The devices were worn simultaneously in randomized configurations. The mean of two manual steps counters was used as the criterion measure. …

Elevator Or Stairs? A Dive Into Patron Decision Making, Lucas D. Elliott, Oliver W.A. Wilson, Melissa Bopp

Topics in Exercise Science and Kinesiology

• When put in a situation to get to higher/lower floors of a building, there are many factors that go into play for whether an individual chooses to take the stairs (active) or ride the elevator (sedentary).
• Students were approached at waiting area for the four elevators in a University Library and were asked series of questions regarding their reasoning for taking the stair or elevator to ascend, as well as their thoughts on the stairwell appearance.
• Point of application #1: Stairwell appearance and aesthetics should be considered during the design process in order to increase use and physical activity amongst …

Early-Morning And Late-Night Maximal Runs: Metabolic And Perceived Exertion Outcomes, Jenna L. Carducci, Matthew J. Garver, Whitley J. Stone, Meera Penumetcha, Dustin W. Davis, Nicolas M. Philipp, Josie N. Hair

Topics in Exercise Science and Kinesiology

• People may exercise at the ends of their day to fit activity into their schedule; the purpose of this investigation was to determine if metabolic or perceived exertion outcomes differed between maximal runs early in the morning and late at night.
• After consuming a standardized, glucose drink, thirteen recreationally active individuals completed an early-morning and a late-night run on the treadmill while researchers measured metabolic (aerobic capacity and substrate usage) and perceived exertion outcomes.
• Point of application #1: Aerobic capacity (maximal consumption of oxygen) and the usage of fat as a fuel to support energy production during exercise were …

Guidelines For Reviewers: Topics In Exercise Science And Kinesiology, James W. Navalta, Donald L. Hoover, Robert Salatto, Whitley J. Stone, Scott Lyons Phd

Topics in Exercise Science and Kinesiology

• The purpose of this document is to serve as a guide for evaluators who agree to review work submitted to Topics in Exercise Science and Kinesiology.
• To assist evaluators, a Reviewer Rubric has been created with the following sections: Title Page and Abstract, Introduction and Methods Page, Point of Application Page(s), Other Considerations, and Reviewer Decisions.
• Point of application: Reviewing the Title and Abstract page – rubric shared for title, author list, affiliations, the abstract, and key words.
• Point of application: Reviewing the Introduction and Methods page – evaluation of introductory paragraph, paragraph for methodology and/or results.
• Point of …

Biomechanics In The 4haie Study: Air Pollution And Musculoskeletal Health - An Update, Daniel Jandacka, Jaroslav Uchityil, David Zahradník, Roman Farana, Dominik Villimek, Jiri Skypala, Jan Urbaczka, Jan Plesek, Adam Motyka, Denisa Blaschova, Gabriela Beinhauerova, Marketa Rygelová, Pavel Brtva, Zuzana Golembiovska, Klara Balazova, Jan Malus, Veronika Horka, Julia F. Silvernail, Gareth Irwin, Miika T. Nieminen, Victor Casula, Vlado Juras, Milos Golian, Steriani Elavsky, Lenka Knapova, Radim Sram, Joseph Hamill

Kinesiology and Nutrition Sciences Faculty Research

The overall purpose of the 4HAIE study was to assess the influence of the interaction between air pollution and biomechanical, physiological and psychosocial factors on the incidence of injuries, health and well-being. A total of 1,500 active runners and inactive controls aged 18-65 will be recruited. Herein, we describe the biomechanical study design with data examples to investigate musculoskeletal and neuro-mechanics health in different air quality regions.

Footfall Pattern During Running In Preschool Children According To Age And Footwear, Jan Plesek, Julia F. Silvernail, Joseph Hamill, Daniel Jandacka

Kinesiology and Nutrition Sciences Faculty Research

The aim of this study was to compare the footfall pattern (FP) in different age groups of preschool children while they ran in standard running shoes (SRS) and barefoot. Forty-eight children aged 3-6 years participated in the study and were split into 4 age groups (n=12). All children performed a simple running game (based on the shuffle run) in SRS and barefoot. The length of the runway was adjusted for each age group. Kinematic and kinetic data were collected using 3-D motion capture system. We analyzed strike index (SI) and sagittal plane ankle angle (AA) at initial contact (IC) from …

Footstrike Patterns Of High And Mid-Mileage Non-Rearfoot Runners During An Exhaustive Run, Jan Urbaczka, Julia F. Silvernail, Daniel Jandacka

Kinesiology and Nutrition Sciences Faculty Research

The purpose of this study was to identify the effect of fatigue on footstrike patterns in two groups of habitually non-rearfoot runners. Twenty-eight runners participating in this study were divided into two groups by their weekly mileage. Participants completed a VO2max test to determine the velocity for the fatiguing run. Kinematic, physiological and biochemical data from the beginning and the remaining 3 minutes of fatiguing treadmill run were obtained. The overall time for fatiguing run exceeded 40 minutes (t = 48,1 ± 3,6 min.). The foot angle at the instant of initial contact significantly changed in both groups following fatigue. …

The Feasibility Of Vigorous Resistance Exercise Training In Adults With Intellectual Disabilities With Cardiovascular Disease Risk Factors, Stijn Wetering, Alyt Oppewal, Thessa I. M. Hilgenkamp

Physical Therapy Faculty Research

Background The cardiovascular disease (CVD) risk is high in adults with intellectual disabilities. This CVD risk can potentially be decreased with a resistance training (RT) programme at vigorous intensity, following previous research on successful High‐Intensity Training programmes. Our aim was to explore the feasibility of a vigorous RT‐programme for adults with intellectual disabilities with CVD risk factors. Method Twenty‐four adults with intellectual disabilities with at least one CVD risk factor participated in a 24‐week RT‐programme. The training intensity was increased from novice (50%1RM) to vigorous (75%–80%1RM). Feasibility was based on the achieved training intensity at the end of the RT‐programme. …

Discovering Motor Phenotypes In Autism Spectrum Disorder: A Cross-Syndrome Approach, Daniel Edwin Lidstone

UNLV Theses, Dissertations, Professional Papers, and Capstones

Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder with a behavioral phenotype characterized by persistent deficits in social communication and social interaction accompanied by restricted, repetitive patterns of behaviors, interests, or activities. Currently in the US, approximately 2.5% of children have a diagnosis of ASD. The etiology of ASD is complex, however the disorder does have a strong genetic basis. Specific genetic mutations can lead to neuroanatomical and neurophysiological changes during development resulting in a behavioral phenotype that falls along the ASD spectrum and may result in a diagnosis of ASD. The severity of ASD-specific behaviors falls on a continuum …

Tunnel-Tube And Fourier Methods For Measuring Three-Dimensional Medium Reaction Force In Burrowing Animals, Alexis Moore Crisp, Clinton J. Barnes, David V. Lee

Life Sciences Faculty Research

Subterranean digging behaviors provide opportunities for protection, access to prey, and predator avoidance for a diverse array of vertebrates, yet studies of the biomechanics of burrowing have been limited by the technical challenges of measuring kinetics and kinematics of animals moving within a medium. We describe a new system for measuring 3D reaction forces during burrowing, called a ‘tunnel-tube’, which is composed of two, separately instrumented plastic tubes: an ‘entry tube’ with no medium, in series with a ‘digging tube’ filled with medium. Mean reaction forces are measured for a digging bout and Fourier analysis is used to quantify the …