Medicine and Health Sciences Commons^™

Effect Of Water Depth On Heart Rate And Core Temperature During Underwater Treadmill Walking, Carrie E. Bajenski, Brianna R. Brandon, Cailey A. Curry, Leslie Fajardo, Ryan T. Conners

International Journal of Aquatic Research and Education

Exercising using an underwater treadmill (UTM) has become a popular modality; however, few studies have focused on the physiological demands of UTM walking at varying water depths. Thus, the objective of this study was to investigate changes in heart rate (HR) and core temperature (CT) values in college-aged males and females while exercising at different water immersion depths using an UTM. Twenty participants (age = 21.50 ± 2.19 years; height = 169.04 ± 10.85cm; weight = 75.56 ± 22.28kg) walked at water depths of 10cm below the xiphoid process and at the level of the superior iliac crest (I.C.). Each …

A Pilot Study Examining The Effect Of Dynamic Warm-Up Utilization On Rodeo Performance Of College Breakaway Ropers, Tyler Frank

International Journal of Exercise Science: Conference Proceedings

ABSTRACT

Pre-competition dynamic warm up participation has exemplified significant improvements in sport performance and decreased risk of injury for high velocity, high impact sports. Rodeo is recognized as a high velocity/intensity sports with great risk of impact and non-impact related injuries. However, no research has investigated the effect of pre-competition warm up utilization of the performance of rodeo athletes. PURPOSE: Therefore, the purpose of the current research examination was to evaluate the efficacy of per-competition dynamic warm up participation for rodeo athletes. METHODS: Seven collegiate rodeo females, competing as Breakaway Ropers, were selected at participants for the current …

Cortical Activity Measured With Low-Intensity Fatiguing Contractions Of The Quadriceps Muscle Group, Emma D. Bozarth, Lyric D. Richardson, Amy E. Riera, Micheal J. Luera, Amber H. Bozer

International Journal of Exercise Science: Conference Proceedings

Modulation of force production required during exercise is regulated from various mechanisms in the central and peripheral nervous system. Fatigue is influenced by various mechanics that may hinder the ability to continuously sustain force production. The neural activation patterns of these systems can be recorded as electrical impulses using several non-invasive techniques. The ability to examine these during fatiguing exercise has provided further insight into activation patterns in the central nervous system (i.e., motor and pre-motor cortex) during sustained muscle contractions. Electroencephalography (EEG) has been recently utilized to examine changes associated with central fatigue, but limited advancements in technology for …

Effects Of Low-Intensity Fatigue On Motor Unit Firing Properties During Maximal Voluntary Isometric Contractions, Lyric Richardson, Amy Riera, Emma Bozarth, Micheal Luera

International Journal of Exercise Science: Conference Proceedings

Rehabilitation from injuries impairing the neuromuscular system is often difficult to quantify due to task specificity of the affected or immobilized limb or limbs. Often, exercise regimens with clinical practitioners are designed to progress motor performance to a capacity that reflects muscle force production to pre-injury capacity. Modulation of force production from these tasks are regulated from various mechanism in the central and peripheral nervous system. The neural activation of these systems can be recorded as electrical impulses using several non-invasive techniques. Recently, the ability to examine these during fatiguing exercise has provided further insight into activation patterns and firing …

Associations Of Changes In Body Composition And Athletic Performance In Collegiate American Football Players, Jake Boykin, Dale Kieth, Christine Harrison, Javier A. Zaragoza, Jessica Prather, Matthias Tinnin, Lemuel W. Taylor Iv, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

Football practitioners ubiquitously employ offseason resistance training to improve on-field performance. Early offseason training is frequently designed to emphasize accretion of lean and total body mass. While this is a main objective of sport-specific conditioning, there are few investigations comparing correlated changes in body composition, maximal strength, and football-specific performance tests after an early-offseason training program. PURPOSE: The purpose of this analysis was to quantify the relationship between changes in athletic performance and body composition in collegiate American football players. METHODS: Before and after a 7-week offseason training program, body composition and athletic performance were assessed in NCAA Division III …

Relationship Between Changes In Upper Body Fat-Free Mass And Bench Press Performance In American Football Players, Dale S. Keith, Jake R. Boykin, Christine M. Harrison, Javier A. Zaragoza, Jessica Prather, Matthias Tinnin, Lem W. Taylor, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

Horizontal pushing strength and strength endurance are relevant attributes for blocking and block shedding in American football. Since most positions in American football require the ability to either block or shed a block, and since bench press repetitions to failure (RTF) with 225 pounds is a component of the NFL draft combine, improving horizontal pushing strength and strength endurance have been key areas of emphasis for strength and conditioning coaches working with these athletes. PURPOSE: The purpose of this analysis was to quantify the relationship between changes in upper body fat-free mass (FFM) and metrics of bench press performance …

Cardiorespiratory Coordination Among Intermediate And Novice Female Collegiate Rowers, Zoey Jackson, Michelle Etchebaster, Paula Gutiérrez, Gemma Hernández, Sergi G. Retortillo, Zacharias Papadakis

International Journal of Exercise Science: Conference Proceedings

Elite rowers present high levels of cardiorespiratory performance. Rowers’ on-water performance can be predicted by a cardiopulmonary exercise test (CPET) and related measured parameters such as maximum oxygen uptake test (VO2max), ventilation (VE), heart rate (HR), expired fraction of oxygen (FeO2) and carbon dioxide (FeCO2). However, such testing provides little information about the non-linear dynamic interactions during rowing and the qualitative synergetic reconfigurations between cardiovascular and respiratory systems to adjust to the individual rowing performance. Cardiorespiratory coordination (CRC) has been proposed as a method to measure the co-variation among cardiorespiratory variables during a CPET. PURPOSE: To measure and compare …

Exploring Physical Fitness Profile Of College Students Through Principal Component Analysis: A Case Study, Alejandra Rincon Cortes, Melissa Dorvily, Zoey Jackson, Michelle Etchebaster, Zacharias Papadakis

International Journal of Exercise Science: Conference Proceedings

Universities offer lifetime physical fitness (PF) courses and organize health fairs to keep their students physically fit. Despite these efforts, only 49.9% of US students meeting the National Guidelines for physical activity, reporting low fitness levels, as evaluated by the respective scores of the five fitness components. Fitness evaluation though is a time-consuming process and students’ time constrains have been postulated as reasons for lack of participation, motivation, and involvement. PURPOSE: Since time availability may influence students’ participation in a battery of fitness testing for evaluating their PF levels, this study aimed through principal component analysis (PCA) to reduce the …

Assessment Of Youth Athlete Body Composition Using Bioimpedance Techniques As Compared To A Three-Compartment Model, Jacob J. Green, Abby Ambrosius, Christopher Dodge, Brandon Merfeld, Chinguun Khurelbaatar, Makenna Carpenter, Patrick Harty, Christian Rodriguez, Madelin Siedler, Matthew Stratton, Dale Keith, Jake Boykin, Andrew R. Jagim, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

Body composition is believed to contribute to success in many sports. For this reason, assessment of body composition with various devices is commonly performed. The agreement between devices warrants exploration, particularly in groups with limited data, such as youth athletes. PURPOSE: To determine the agreement between a 3-compartment model (3C) and bioelectrical impedance analysis (BIA) devices for assessing body composition in youth athletes. METHODS: The body composition of 90 youth athletes was evaluated (51 F, 39 M; age: 18.2±2.4 y; body mass: 69.0±12.5 kg; height: 172.0±9.9 cm; BMI: 23.2±3.2 kg/m², BF%: 19.7±6.9%). 3C values were produced …

Is Our Student Body Fit? A Comparison Of Current Fitness Levels To Normative Data, Melissa Dorvily, Michelle Etchebaster, Zoey Jackson, Zacharias Papadakis

International Journal of Exercise Science: Conference Proceedings

Physical Activity (PA) among university students yields 40-50% participation and this statistic continues to make a steady decline. This has caused a widespread call to action for universities to provide resources and education to encourage students to increase physical activity. Prior to and during COVID-19 pandemic our student body reported decreased levels of PA. Amid the return to an in-person student life, many students have reported increased challenges in returning to fitness related activities. In tandem with our Exercise is Medicine-On Campus (EIM-OC) initiative, an interactive health fair open to the entire body of 4,495 students was held to address …

Exergame Versus Traditional Cycling: A Comparison Of Psychological Factors, Mckay Bloxham, Casi Helbig

International Journal of Exercise Science: Conference Proceedings

Previous research has noted that increased enjoyment levels endorsed the involvement in long-term exercise persistence. PURPOSE: The purpose of the study was to compare enjoyment levels and perceived time of the Spinner NXT, a stationary bike commonly found in cycling classes, and the TACX trainer, a stationary bike which allows users to immerse themselves in any location in the world and participate in competitions if desired. METHODS: Sample size consisted of 30 Texas Lutheran University students. Each participant was assigned a number to protect their identity and was randomly assigned which bicycle they would start with. Participant was …

Comparison Of Laboratory-Grade And Consumer-Grade Hand-To-Foot Bioelectrical Impedance Analyzers For Body Composition Estimation, Gabrielle C. Dehaven, Madelin R. Siedler, Christian Rodriguez, Sarah White, Abegale D. Williams, Patrick S. Harty, Matthew T. Stratton, Dale Keith, Jacob Green, Jake Boykin, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

Bioelectrical impedance analysis (BIA) is a simple and effective technique to estimate body composition, including body fat percentage (BFP). While these analyzers are a popular method of describing a person’s body composition, laboratory-grade devices are expensive and inaccessible to most people. As a result, they may be an unrealistic method for consumers to use. However, consumer-grade devices are increasingly available. PURPOSE: The purpose of this study was to compare laboratory-grade and consumer-grade bioelectrical impedance analyzers. METHODS: Seventy-five adults (40 F, 35 M) were evaluated using a laboratory-grade, hand-to-foot, multifrequency bioelectrical impedance analyzer (BIA_LAB; Seca mBCA 515) …

Validity Of Hand-To-Foot And Foot-To-Foot Consumer Bioimpedance Analyzers: A Four-Compartment Model Comparison, Sarah J. White, Madelin R. Siedler, Christian Rodriguez, Abegale D. Williams, Gabrielle Dehaven, Patrick S. Harty, Matthew T. Stratton, Dale Keith, Jacob Green, Jake Boykin, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

Body fat percentage (BF%) is a useful variable for predicting disease risk and determining overall fitness. Consumer-grade bioimpedance analyzers seek to provide accurate body composition data while remaining affordable and accessible. PURPOSE: The purpose of this study was to compare body fat percentages obtained from hand-to-foot and foot-to-foot consumer bioimpedance analyzers to a gold standard 4-compartment (4C) model. METHODS: Seventy-five adults (40 F, 35 M; age: 27.2 ± 7.3 y; height: 168.1 ± 8.8 cm; BM: 72.1 ± 16.6 kg; 4C model BF%: 25.0 ± 9.2%) were evaluated by a 4C model, a consumer-grade hand-to-foot bioimpedance analyzer (BIA-HF; …

Machine Learning To Predict Sports-Related Concussion Recovery Using Clinical Data, Yan Chu, Gregory Knell, Riley P. Brayton, Scott O. Burkhart, Xiaoqian Jiang, Shayan Shams

Faculty Research, Scholarly, and Creative Activity

Objectives
Sport-related concussions (SRCs) are a concern for high school athletes. Understanding factors contributing to SRC recovery time may improve clinical management. However, the complexity of the many clinical measures of concussion data precludes many traditional methods. This study aimed to answer the question, what is the utility of modeling clinical concussion data using machine-learning algorithms for predicting SRC recovery time and protracted recovery?
Methods
This was a retrospective case series of participants aged 8 to 18 years with a diagnosis of SRC. A 6-part measure was administered to assess pre-injury risk factors, initial injury severity, and post-concussion symptoms, including …

More Elevated Fastballs Associated With Placement On The Injured List Due To Shoulder Injury, Austin V. Stone, Brooks N. Platt, Brandon S. Collofello, Aaron D. Sciascia, Timothy L. Uhl, William B. Kibler

Orthopaedic Surgery and Sports Medicine Faculty Publications

Purpose

To evaluate whether impending shoulder injury was associated with changes in pitch location or velocity immediately preceding injury.

Methods

Pitchers placed on the injured list (IL) due to a shoulder injury between 2015 and 2020 were identified in the Major League Baseball transactions database. Four-seam fastball velocity and frequency of pitch location for each pitch type was collected for each player in the season before placement on the IL and within 1 month of placement on the IL with a minimum of 55 pitches thrown of 1 type. Pitch locations were collected as identified by Baseball Savant’s Game-Day Zones. …

Improving The Technical And Tactical Training Of Sambo Wrestlers At The Stage Of In-Depth Specialization, Shukurjon Shukhrat Ugli Gaziev

Eurasian Journal of Sport Science

Purpose: improvement of technical and tactical readiness of sambo wrestlers among 12-14 age at performing technical and tactical actions during the wrestling.

Methods: The study uses methods of analysis of scientific and methodological literature, questionnaires; pedagogical observations; biomedical methods, control tests characterizing special preparedness, pedagogical experiment, mathematical and statistical data processing.

Results: According to the results of the scientific experiment, it can be seen that the use of the largest increase was shown only by the number of throws in the control group, and in the experimental group for all indicators of the analysis. In addition, tests used not only …

Tactical Masters Athletes: Bmi Index Classifications, Marc Keefer, Joe Walsh, Kent Adams, Mike Climstein, Chad Harris, Mark Debeliso

All Faculty Scholarship for the College of Education and Professional Studies

Understanding the nexus between aging, physical activity, and obesity has been a source of ongoing investigation. A considerable amount of research has focused on Masters athletes in this regard, suggesting a beneficial relationship between Masters sport participation and a healthy body mass index (BMI). Some consider Active Duty military personnel as tactical athletes. As such, it is of interest to determine if aging Active Duty military personnel (or Masters Tactical Athletes) might have a similar BMI as other Masters athletes (MA). As such, this investigation examined previously recorded data of Active Duty Enlisted United States Marines (n = 402, male, …

Correlation Analysis Of The Integral Preparedness Of 12-17 Years-Old Gymnasts, Bakhrom Bakhtiyorovich Musaev, Mars Narzievich Umarov

Eurasian Journal of Sport Science

Purpose: Consider a mathematical model of correlation and factor analysis of the readiness of promising young gymnasts and the level of its significance in determining the model characteristics of young athletes

Methods: In this work, methods of mathematical statistics were used, in particular, correlation and factor analysis of the results.

Results: The validity of individual tests changes with age, both with the result in the types of gymnastic all-around, and with the volume of mastered and included in the combination of elements of the highest difficulty group. It turned out to be quite difficult to choose which test is more …

The Effect Of Voice Demand On The Perception Of Voice In Collegiate Athletic Coaches, Olivia Faith Metzgar

Student Theses and Dissertations

This investigation was conducted to investigate the effect of voice demand on the perception of voice in collegiate athletic coaches. This investigation also examined the prevalence of self-perceived voice disorders within collegiate athletic coaches. This study was conducted by distributing a survey to the Division I athletic coaches in the state of Arkansas. The survey consisted of demographic questions and a questionnaire that explored the self-perceived vocal symptoms that were experienced during the current season of coaching. The data collected revealed that there were vocal symptoms that were identified as an effect of occupational voice demand during the current season …

The Effects Of A Carbohydrate Mouth Rinse On Soccer-Specific Skills Following A Morning High-Intensity Practice, Lynnsey Rose Bowling

Student Theses and Dissertations

Carbohydrate mouth rinse (CMR) enhances aerobic performance lasting ≥ 30 minutes and some anaerobic and skill-related performance. This study evaluated the effects of a CMR on four soccer-specific skills in fasted collegiate female athletes. Participants completed a control session and two counterbalanced, double-blind experimental sessions, during which participants rinsed with either a carbohydrate (CHO; 6% maltodextrin) or taste- and color-matched placebo (PLA) solution following a high-intensity soccer practice. Participants then performed passing, agility, juggling, and shooting tasks. Thirst sensation, rating of perceived exertion, and heart rate (HR) were assessed throughout sessions. No significant differences (p >.05) were observed between experimental …

Acute Neurogenic Stuttering As A Symptom Of Concussions In Collegiate Athletes, Kayleigh Hennemann

Student Theses and Dissertations

The purpose of this investigation was to determine if stuttering is a possible symptom of concussions in collegiate athletes. This study utilized a 10-question survey regarding the occurrence of concussions and possible stuttering symptoms that followed. The survey was distributed to the Arkansas State University rugby team. The results of the study revealed that greater than half of the players who experienced concussions also experienced co-occurring stuttering symptoms. Though this study utilized a small sample size, it revealed that further research is needed regarding stuttering as a symptom of concussions.

Effects Of External Loading During Daily Living On Acft Performance, Chase Wilson Sanders

Student Theses and Dissertations

External loading during activities of daily living (ELDL) has been shown to improve anaerobic performance in tactical populations. The purpose of this study was to determine the effects of ELDL on Army Combat Fitness Test (ACFT) performance in male ROTC cadets. Twenty-two cadets were stratified into ELDL and control groups using baseline ACFT scores. The ELDL group underwent 3 weeks of ELDL using progressive loads of 12, 15, and 18% of lean body mass. Weight vests were not worn during training. ACFT was reassessed after ELDL, and again after a 3-week washout period. A mixed-model ANOVA and Bonferroni pairwise comparisons …

Relationship Between Nordic Hamstring Strength And Maximal Voluntary Eccentric, Concentric And Isometric Knee Flexion Torque, Satoru Nishida, Masatoshi Nakamura, Ryosuke Kiyono, Shigeru Sato, Koki Yasaka, Riku Yoshida, Kazunori Nosaka

Research outputs 2022 to 2026

Nordic hamstring exercise is performed to prevent knee flexor muscle strain injuries and used to assess their injury risks. However, what exactly Nordic hamstring strength indicates is not clear. We investigated the relationship between Nordic hamstring strength and maximal voluntary contraction (MVC) torque of the knee flexors measured by an isokinetic dynamometer. Sixteen healthy young men who had not experienced hamstring strain injuries participated in the study. In Nordic hamstring, each participant was instructed to lean forward as far as possible in 3 s (approximately 30/s), and force at the ankle joint of the dominant leg was measured during the …

Muscle-Specific Contributions To Lower Extremity Net Joint Moments While Squatting With Different External Loads, Kristof Kipp, Hoon Kim, William I. Wolf

Exercise Science Faculty Research and Publications

The purpose of this study was to determine muscle-specific contributions to lower extremity net joint moments (NJMs) during squats with different external loads. Nine healthy subjects performed sets of the back squat exercise with 0, 25, 50, and 75% of body mass as an added external load. Motion capture and force plate data were used to calculate NJMs and to estimate individual muscle forces via static optimization. Individual muscle forces were multiplied by their respective moment arms to calculate the resulting muscle-specific joint moment. Statistical parametric mapping (α = 0.05) was used to determine load-dependent changes in the time series …

Increases In Integrin-Ilk-Rictor-Akt Proteins, Muscle Mass, And Strength After Eccentric Cycling Training, Georgios Mavropalias, Yu-Fu Wu, Marni D. Boppart, Anthony J. Blazevich, Kazunori Nosaka

Research outputs 2022 to 2026

Purpose: Recently, it has been suggested that a cellular pathway composed of integrin, integrin-linked kinase (ILK), rapamycin-insensitive companion of mTOR (RICTOR), and Akt may facilitate long-term structural and functional adaptations associated with exercise, independent of the mTORC1 pathway. Therefore, we examined changes in integrin-ILK-RICTOR-Akt protein in vastus lateralis (VL) before and after 8 wk of eccentric cycling training (ECC), which was expected to increase muscle function and VL cross-sectional area (CSA).

Methods: Eleven men (23 ± 4 yr) completed 24 sessions of ECC with progressive increases in intensity and duration, resulting in a twofold increase in work from the first …

Blood Flow Restriction Training After Patellar Instability (Brains Trial), Benjamin D. Brightwell, Austin V. Stone, Xiaojuan Li, Peter A. Hardy, Katherine L. Thompson, Brian W. Noehren, Cale A. Jacobs

Orthopaedic Surgery and Sports Medicine Faculty Publications

Background

Patellar instability is a common and understudied condition that disproportionally affects athletes and military personnel. The rate of post-traumatic osteoarthritis that develops following a patellar dislocation can be up to 50% of individuals 5–15 years after injury. Conservative treatment is the standard of care for patellar instability however, there are no evidence-informed rehabilitation guidelines in the scientific literature. The purpose of this study is to assess the effectiveness of blood-flow restriction training (BFRT) for patellar instability. Our hypotheses are that this strategy will improve patient-reported outcomes and accelerate restoration of symmetric strength and knee biomechanics necessary to safely return …

Epidemiology Of Ncaa Track And Field Injuries From 2010 To 2014, Chris Hopkins, Joel Williams, Mitchell J. Rauh, Lu Zhang

Open Access Fund Publications

Background:

Track and field (T&F) athletes compete in a variety of events that require different skills and training characteristics. Descriptive epidemiology studies often fail to describe event-specific injury patterns.

Purpose:

To describe the epidemiology of injuries in National Collegiate Athletic Association (NCAA) T&F by sex, setting (practice vs competition), and time of season (indoor vs outdoor) and to compare injury patterns by events within the sport.

Study Design:

Descriptive epidemiology study.

Methods:

Data were obtained from the NCAA Injury Surveillance Program for all indoor and outdoor T&F injuries during the academic years 2009-2010 to 2013-2014. Injury rates, injury rate ratios, …

Gut Microbiome And Metabolome Variations In Self-Identified Muscle Builders Who Report Using Protein Supplements, Lauri O. Byerley, Karyn M. Gallivan, Courtney J. Christopher, Christopher M. Taylor, Meng Luo, Scot E. Dowd, Gregory M. Davis, Hector F. Castro, Shawn R. Campagna, Kristin S. Ondrak

School of Graduate Studies Faculty Publications

Muscle builders frequently consume protein supplements, but little is known about their effect on the gut microbiota. This study compared the gut microbiome and metabolome of selfidentified muscle builders who did or did not report consuming a protein supplement. Twenty-two participants (14 males and 8 females) consumed a protein supplement (PS), and seventeen participants (12 males and 5 females) did not (No PS). Participants provided a fecal sample and completed a 24-h food recall (ASA24). The PS group consumed significantly more protein (118 ± 12 g No PS vs. 169 ± 18 g PS, p = 0.02). Fecal metabolome and …

Development Of Special Motor Training Of Young Gymnasts, Khojiakbar Akhtamkulovich Karimov

Eurasian Journal of Sport Science

Purpose: Improving the special motor training of young gymnasts based on the analysis of the results of special motor training of gymnasts at the stage of initial training.

Methods: The article widely uses the analysis of scientific and methodological literature, pedagogical observation, pedagogical experiment, testing, methods of mathematical statistics and video surveillance based on the improvement of special motor training of young gymnasts.

Results: During the analysis of data on the preparation of young gymnasts for special actions, the complex developed by gymnasts 5-7 years old when developing training for special actions was scientifically substantiated, and its effectiveness was determined …

Instrumental Method For Monitoring Speed-Strength Preparedness In Sports, Olga Viktorovna Goncharova

Eurasian Journal of Sport Science

Purpose: The purpose of the work is to develop a measuring complex for monitoring of athletes’ speed-strength preparedness.

Methods: The following research methods were used in this work: educational literature analysis, pedagogical testing, pedagogical observation, pedagogical experiment, methods of mathematical statistics.

Results: The necessity of taking into account the nature of the relationship between the level of physical, particular, speed-strength preparedness and dynamometric measuring device indicators. Summing up, we can state the followings: according to the testing and pedagogical observations’ results, a correlation analysis was carried out; a quantitative assessment of the relationship between the level of physical preparedness and …