Medicine and Health Sciences Commons^™

Neuropsychological Change After A Single Season Of Head Impact Exposure In Youth Football, Arthur C. Maerlender, Eric Smith, P. Gunnar Brolinson, Joseph J. Crisco, Jillian Urban, Amaris Ajamil, Steven Rowson, Eamon T. Campolettano, Ryan A. Gellner, Srinidhi Bellamkonda, Emily Kieffer, Mireille E. Kelley, Derek Jones, Alex Powers, Jonathan Beckwith, Joel Stitzel, Richard M. Greenwald, Stefan Duma

Center for Brain, Biology, and Behavior: Faculty Publications

Objectives: Head impact exposure (HIE) in youth football is a public health concern. The objective of this study was to determine if one season of HIE in youth football was related to cognitive changes.

Method: Over 200 participants (ages 9–13) wore instrumented helmets for practices and games to measure the amount of HIE sustained over one season. Pre- and post-season neuropsychological tests were completed. Test score changes were calculated adjusting for practice effects and regression to the mean and used as the dependent variables. Regression models were calculated with HIE variables predicting neuropsychological test score changes.

Results: For the full …

The Effect Of In-Service Methodology On Learning Transfer For School Personnel Managing Students Following Concussion, Jennifer Parent-Nichols, Angela Desilva Mousseau, Joshua Cleland, Jonathan D. Lichtenstein, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

Background: It is essential to increase the knowledge base of teachers involved in facilitating return to learning in middle school students following a concussion. However, the best method to enhance the transfer of learning for teachers remains to be elucidated. Application of Adult Learning Theory (ALT) is a plausible solution to this problem. Purpose: The purpose of this randomized post-test study was to examine the effects of ALTon the transfer of learning in teachers who work with individuals with concussion. Methods: A convenience sample of 169 teachers at four middle schools were randomized to receive an in-service regarding concussion management …

Sleep And Stress In The Acute Phase Of Concussion In Youth, Arthur C. Maerlender, Caitlin Masterson, Jessica L. Calvi, Todd Caze, Ross Mathiasen, Dennis Molfese

Center for Brain, Biology, and Behavior: Faculty Publications

This study sought to address the complex interplay between both biological and psychological perceptions of stress and sleep in the acute stages following a mild traumatic brain injury. A secondary goal was to identify potential targets for intervention. Eleven acutely injured youth (mean age 12 years) were studied at home with overnight actigraphy, salivary cortisol and melatonin assays, and subjective ratings of stress and fatigue (injured group). Nine matched control youth also were assessed (control group). Results suggested longer sleep latencies (time to fall asleep) and higher levels of fatigue in the injured group exist (p ¼ 0.025 and p …

The Global Assessment Of School Functioning (Gasf): Criterion Validity And Interrater Reliability, Arthur C. Maerlender, Joseph Palamara, Jonathan Lichtenstein

Center for Brain, Biology, and Behavior: Faculty Publications

The Global Assessment of School Functioning (GASF) provides a robust estimate of a student's overall level of functioning within the school environment. It is intended to capture a global metric reflecting academic, social and general behavioral functioning within the school. It is a modification of the Global Assessment of Functioning and reflects functioning across academics, interpersonal relationships, school behavior, and school participation. It was developed to allow school personnel a means to communicate the general level of student functioning without re- verting to specific issues or immediate concerns. This paper reports on the scale's criterion validity and interrater reliability. Confirmations …

Psychometric Properties Of The Standardized Assessment Of Concussion In Youth Football: Validity, Reliability, And Demographic Factors, Arthur C. Maerlender, Eric Smith, P. Gunnar Brolinson, Jillian Urban, Steven Rowson, Amaris Ajamil, Eamon T. Campolettano, Ryan A. Gellner, Srinidhi Bellamkonda, Mireille E. Kelley, Derek Jones, Alex Powers, Jonathan Beckwith, Joseph J. Crisco, Joel Stitzel, Stefan Duma, Richard M. Greenwald

Center for Brain, Biology, and Behavior: Faculty Publications

The objective of this study was to determine the psychometrics (reliability, validity) of the original Standardized Assessment of Concussion (SAC) in a youth sample (ages 11 to 13). Demographic factors of race, level of vocabulary knowledge, mother’s level of education were also considered. Over 150 youth football athletes completed the SAC and a brief battery of NIH Toolbox cognitive tests as part of a larger study on biomechanical factors in youth sport concussion. This was a within-subjects design (pre-season, post-season assessments), and correlational analysis of convergent and discriminant validity. Between groups analysis based on demographic differences was also employed. The …

Modeling Interactions Between Brain Function, Diet Adherence Behaviors, And Weight Loss Success, Amanda N. Szabo-Reed, Laura E. Martin, Jinxiang Hu, Hung-Wen Yeh, Joshua Powell, Rebecca J. Lepping, Trisha M. Patrician, Florance J. Breslin, Joseph E. Donnelly, Cary R. Savage

Center for Brain, Biology, and Behavior: Faculty Publications

Summary

Introduction: Obesity is linked to altered activation in reward and control brain cir-cuitry; however, the associated brain activity related to successful or unsuccessful weight loss (WL) is unclear.

Methods: Adults with obesity (N = 75) completed a baseline functional magnetic res-onance imaging (fMRI) scan before entering a WL intervention (ie,3-month diet and physical activity [PA] program). We conducted an exploratory analysis to identify the contributions of baseline brain activation, adherence behavior patterns, and the asso-ciated connections to WL at the conclusion of a 3-month WL intervention. Food cue-reactivity brain regions were functionally identified using fMRI to index brain activation …

Males With Chronic Ankle Instability Demonstrate Deficits In Neurocognitive Function Compared To Control And Copers, Adam B. Rosen, Melanie L. Mcgrath, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty Publications

The purpose of this study was to determine if there were neurocognitive deficits among controls, copers and those with chronic ankle instability (CAI). Participants included those without history of ankle injury (n = 14), ankle sprain copers (n = 13) and patients with self-reported CAI (n = 14). They completed a battery of valid and reliable computer-based neurocognitive tests. The differences between neurocognitive domain scores were compared across the Control, Coper and CAI groups. Patients with CAI had lower composite memory, visual memory and simple attention compared to controls. In males with CAI, large differences in memory and attention were …

Neural Bases Of Phonological And Semantic Processing In Early Childhood, Avantika Mathur, Douglas H. Schultz, Yingying Wang Dr.

Center for Brain, Biology, and Behavior: Faculty Publications

During the early period of reading development, children gain phonological (letter-to-sound mapping) and semantic knowledge (storage and retrieval of word meaning). Their reading ability changes rapidly, accompanied by learning-induced brain plasticity as they learn to read. This study aims at identifying the neural bases of phonological and semantic processing in early childhood by using a combination of univariate and multivariate pattern analysis. Nineteen typically developing children between the age of five and seven performed visual word-level phonological (rhyming) and semantic (related meaning) judgment tasks during functional magnetic resonance imaging scans. Our multivariate analysis showed that young children with good reading …

Learning To Jump Like Corbin Bleu: The Physics Behind Jump Rope, Caroline Camfield

Mahurin Honors College Capstone Experience/Thesis Projects

This project seeks to determine how engineering can be applied to the sport of jump rope so that athletes may better understand the science behind the sport and apply it to improve their performance in “speed jumping.” This style of jump rope consists of a jumper alternating their feet, with the rope passing under them with each step. Several types of ropes, handles, rope lengths, and widths between a jumper’s handles were tested to determine correlations between each variable and different STEM concept. These findings were then transitioned into a lesson plan so that both the jumpers and coaches could …

Best Practice For Teaching Manual Therapy Techniques To Occupational Therapy Practitioners, Deana K. Jackson

Occupational Therapy Doctorate Capstone Projects

Abstract

Occupational therapy practitioners do not always know how to treat the painful shoulder and this may be due to a lack of education regarding manual therapy. This research project is designed to determine the best practice for teaching manual therapy techniques to occupational therapy providers by providing an in-service to teach new knowledge and skills regarding manual therapy to improve patient care by reducing client shoulder pain. Three types of learning styles were used which include: behaviorist theory, constructivism, and active learning strategies. The design was a two-tailed T test with a pretest/posttest to evaluate knowledge of the participants …

Professional Liability Insurance For Athletic Trainers: A Cross Sectional Study Of Athletic Trainers Who Do Per Diem Work, Kameelah J. Belgrave

Honors Undergraduate Theses

Context: Many secondary school athletic trainers (ATs) complete per diem work as a way to supplement their income. Working per diem means the AT provides services to events that are not part of their main employment. Since this type of work is not connected to their main employment, the AT may lack appropriate professional liability insurance (PLI). PLI is a type of insurance that protects healthcare professionals from bearing the entire cost of defending a malpractice claim made by a former or current patient. Anecdotally, many ATs believe that the PLI provided by their main employer covers all health care …

Application Of High Performance Training Strategies To Enhance Occupational Readiness In Law Enforcement Cadets, Gabriel Jose Martinez

Theses and Dissertations--Kinesiology and Health Promotion

Law enforcement requires cadets to achieve a requisite level of physical fitness to prepare for occupational demands. However, there is limited research on the effectiveness of academy exercise programs to optimize physical fitness and occupational physical ability through high performance training strategies more typically utilized in elite athletic populations. Furthermore, there is a paucity of research identifying physical fitness correlates of occupational performance. Collectively, this information will provide academies and practitioners with critical information to develop evidence-based training programs. Therefore, the purposes of this study were to: Aim 1) Examine the effectiveness of integrating autoregulatory progressive resistance exercise (APRE) and …

Acute Effects Of Complex Training Using Three Different Intracomplex Rest Intervals On Power Output In Recreationally Trained College Students, Brianna M. Donnelly

West Chester University Master’s Theses

Power is often referred to as explosiveness and is viewed as essential for many athletes within a wide range of sports. Power in sports is important in relation to its foundation in other specific abilities like first step-quickness, acceleration, and reaching top speeds (Cronin, Hansen, 2005). This research study examines the acute effects of complex training using three different intracomplex rest intervals (ICRI) on power output in recreationally trained college students. The goal of this study was to find the optimal ICRI for complex training (CT) by completing a countermovement jump on a force plate after a 3-RM back squat …

Concussion Experiences In New England Private Preparatory High School Students Who Played Sports Or Recreational Activities, Jill Daugherty, Dana Waltzman, Katherine P. Snedaker, Jason Bouton, Xinjian Zhang, David Wang

Athletic Training Faculty Publications

Background: Sports- and recreation-related (SRR) activities are a major cause of adolescent concussions. Most adolescent SRR concussion research has been conducted among public school students. As private schools are qualitatively different from public schools (eg, location, socioeconomic status, sports played), this study explores the concussion experiences of a large group of private high school students. Methods: We surveyed 2047 New England private preparatory high school students who played sports or engaged in a recreational activity in 2018 about the sports they played, and their self-reported concussion experiences (eg, age at first concussion, if concussions were sports- or recreation-related). Descriptive, bivariate, …

An Investigation Into The Technical And Running Performance Metrics Of Gaelic Football Training Andmatch-Play To Inform The Design Of A Novel Tactical Periodisation Training Model, Shane Mangan

Theses

Background: Carefully planned and implemented training programmes are essential for optimal sports performance. In depth knowledge of both the technical, tactical and physical demands of the sport are critical to informing these training programmes. Gaelic football, an amateur intermittent field sport, is one of the most popular sports in Ireland. Limited previous research has attempted to extensively analyse and interpret key findings from the literature to formulate practical recommendations for Gaelic football training and match preparation. The purpose of this research is to objectively analyse Gaelic football performance at the elite and sub-elite levels and to use this data to …

Impact Of Coaching By Extension Professionals On Rural Wellness Coalition Success, Taylor Willhite

Electronic Theses and Dissertations

Objective: To quantitatively assess coaches perceived confidence in coaching rural wellness coalitions and to qualitatively determine barriers and facilitators to success in coaching rural wellness coalitions.
Design: A mixed methods design was utilized with quantitative (scorecard) and qualitative (key informant interviews) methodologies.
Setting: Six rural South Dakota wellness coalitions.
Participants: Extension wellness coalition coaches (n=7), one previous and six current.
Intervention: A component of the broader SDSU Extension 1416 Centers for Disease Control (CDC) and Supplemental Nutrition Assistance Program Education (SNAP-Ed) intervention.
Analysis: STATA was utilized for the quantitative scorecard data by running paired ttests. NVivo was utilized in the …

Associations Between Sleep And In-Race Gastrointestinal Symptoms: An Observational Study Of Running And Triathlon Race Competitors, Patrick Benjamin Wilson

Human Movement Studies & Special Education Faculty Publications

OBJECTIVE: It remains unstudied whether poor sleep is involved in the etiology of gastrointestinal (GI) problems in athletes.

METHODS: Eighty-seven running and triathlon/duathlon race (>60 minutes) participants completed questionnaires to quantify the Sleep Problems Index-(SPI)-I and sleep parameters from the night before races. For GI symptoms, participants reported the severity (0-10 scale) of four upper and three lower symptoms during races. Spearman's correlations examined whether sleep measures were associated with in-race GI symptoms. Partial correlations were calculated to control for age, resting GI symptoms, and anxiety.

RESULTS: SPI-I scores correlated with in-race upper GI symptoms (rho=0.26, p=0.013). Controlling for …

Sports Performance Measures In Youth Wheelchair Basketball Athletes, Kathryn Rodebaugh

Summer Community of Scholars Posters (RCEU and HCR Combined Programs)

No abstract provided.

Identifying Metabolites As Markers Of Fatigue In Athletes, Christopher D. George

Honors Theses

Fatigue in athletes caused by inadequate rest and other stressors can be severely detrimental to their health, and yet there is no reliable way to measure and track fatigue. Many classical measures of fatigue like body mass and resting heart rate are not reliable ways to track the physical fatigue of an athlete because they can change with many factors. In addition, it is not known how academic stress on top of physical stress affects fatigue. Metabolomics is a relatively new area of study and tracking metabolites offers the possibility to produce biomarkers to assess fatigue. This study collected saliva …

ผลของการฝึกการรับรู้และตอบสนองที่ข้อต่อร่วมกับการออกกำลังกายแบบสั่นสะเทือนทั้งร่างกายต่อการทรงตัวและการทำงานของระบบประสาทกล้ามเนื้อในนักกีฬาที่มีภาวะข้อเท้าไม่มั่นคง, ณภัทร เครือทิวา

Chulalongkorn University Theses and Dissertations (Chula ETD)

เพื่อศึกษาและเปรียบเทียบผลของการฝึกการรับรู้และตอบสนองที่ข้อต่อร่วมกับการออกกำลังกายแบบสั่นสะเทือนทั้งร่างกายที่มีต่อความสามารถในการทรงตัวและการทำงานของระบบประสาทกล้ามเนื้อในนักกีฬาที่มีภาวะข้อเท้าไม่มั่นคง ผู้เข้าร่วมงานวิจัยเป็นนักกีฬาระดับมหาวิทยาลัย ทั้งเพศชายและหญิงที่มีภาวะข้อเท้าไม่มั่นคง จำนวน 52 คน มีอายุระหว่าง 18-27 ปี โดยผ่านการตรวจร่างกายและเกณฑ์การคัดเข้าก่อนเข้าร่วมงานวิจัย จากการตอบแบบสอบถามประเมินตนเอง CAIT ได้คะแนนน้อยกว่าหรือเท่ากับ 24 คะแนน โดยแบ่งผู้เข้าร่วมวิจัยออกเป็น 4 กลุ่มๆ ละ 13 คน ได้แก่ กลุ่มควบคุมที่ไม่ได้รับการฝึกการรับรู้และตอบสนองที่ข้อต่อร่วมกับการออกกำลังกายแบบสั่นสะเทือนทั้งร่างกาย (Control) กลุ่มทดลอง 1 ที่ได้รับการฝึกการรับรู้และตอบสนองที่ข้อต่อเพียงอย่างเดียว (PPT) กลุ่มทดลอง 2 ที่ได้รับการออกกำลังกายแบบสั่นสะเทือนทั้งร่างกายเพียงอย่างเดียว (WBV) และกลุ่มทดลอง 3 ที่ได้รับการฝึกการรับรู้และตอบสนองที่ข้อต่อร่วมกับการออกกำลังกายแบบสั่นสะเทือนทั้งร่างกายต่อเนื่องกัน (PPT+WBV) โดยกลุ่มทดลองทั้ง 3 กลุ่มได้รับโปรแกรมการฝึกที่กำหนด 3 ครั้งต่อสัปดาห์ เป็นระยะเวลา 6 สัปดาห์ ในช่วงการทดลองทุกกลุ่มจะได้รับการฝึกซ้อมทักษะตามปกติภายใต้การควบคุมดูแลของผู้ฝึกสอน ทำการเก็บรวบรวมข้อมูลก่อนและหลังการฝึก ได้แก่ ข้อมูลคุณลักษณะทั่วไป การทดสอบความสามารถในการทรงตัวขณะอยู่นิ่งโดยเครื่องไบโอเด็กซ์ (Biodex stability system) และการทรงตัวขณะเคลื่อนไหวโดยการทดสอบการทรงตัวตามแนวเส้นรูปดาว (Star excursion balance test) วัดการรับรู้ความรู้สึกที่ข้อต่อ (Joint position senses, JPS) วัดความแข็งแรงของกล้ามเนื้อข้อเท้า ทดสอบการทำงานของข้อเท้าโดยการกระโดดลงสู่พื้น (Time to stability, TTS) และฮอฟแมนรีเฟล็กซ์ (H-reflex) ที่กล้ามเนื้อน่องด้านใน (Soleus muscle) ผลการวิจัยพบว่า ในกลุ่มควบคุม ไม่พบความแตกต่างของทุกตัวแปรก่อนและหลังการทดสอบอย่างมีนัยสำคัญทางสถิติ (p>0.05) ขณะที่ทั้ง 3 กลุ่มทดลอง มีค่าเฉลี่ยความสามารถในการทรงตัวทั้งขณะอยู่นิ่ง เวลาที่ผู้ทดสอบอยู่นิ่งหลังจากที่กระโดดลงมาสู้พื้นด้วยขาข้างเดียว และค่าเฉลี่ยความสูงของ H-reflex ที่กล้ามเนื้อ Soleus ดีขึ้นอย่างมีนัยสำคัญทางสถิติ (p<0.05) ยกเว้นบางตัวแปรในกลุ่ม WBV ที่มีค่าความสามารถในการการรับรู้ตำแหน่งของข้อต่อที่ไม่เปลี่ยนแปลง (p>0.05) ส่วนกลุ่ม PPT ไม่พบความแตกต่างก่อนและหลังการฝึกอย่างมีนัยสำคัญทางสถิติ (p>0.05) ของค่าความแข็งแรงของกล้ามเนื้อข้อเท้าและความสามารถในการทรงตัวขณะเคลื่อนไหว และกลุ่ม PPT+WBV ไม่พบความแตกต่างของความแข็งแรงของกล้ามเนื้อข้อเท้าที่ก่อนและหลังการฝึกอย่างมีนัยสำคัญทางสถิติ (p …

Caffeine Ingestion Enhances Repetition Velocity In Resistance Exercise: A Randomized, Crossover, Double-Blind Study Involving Control And Placebo Conditions, Jozo Grgic, Sandro Venier, Brad J. Schoenfeld, Pavle Mikulic

Publications and Research

We aimed to examine the effects of placebo and caffeine compared to a control condition on mean velocity in the bench press exercise. Twenty-five resistance-trained men participated in this randomized, crossover, double-blind study. The participants performed the bench press with loads of 50%, 75%, and 90% of one-repetition maximum (1RM), after no supplementation (i.e., control), and after ingesting caffeine (6 mg/kg), and placebo (6 mg/kg of dextrose). At 50% 1RM, there was a significant effect of caffeine on mean velocity compared to control (effect size [ES] = 0.29; p = 0.003), but not when compared to placebo (ES = 0.09; …

Where Do We Go From Here? A Forward-Thinking Vision For Physiology Undergraduate Education, Nancy M. Aguilar-Roca, Lisa C. Anderson, Anne R. Crecelius, Michelle B. French, Katie Johnson, Jenny L. Mcfarland, Jennifer Rogers, Claudia I. Stanescu, Erica A. Wehrwein

Health and Sport Science Faculty Publications

This paper is a summary of the special collection of papers in Advances in Physiology Education dedicated to the Physiology Majors Interest Group (P-MIG). P-MIG is a new and vibrant community (1, 2) of educators and administrators who are united by the common goal of creating physiology courses, curricula and programs that will prepare our students for the future. It is an independent consortium that welcomes anyone interested in physiology education at the level of the undergraduate degree in physiology and physiology-related fields. As demonstrated by this special collection of papers of Advances in Physiology Education, P-MIG has already made …

Monitoring Wellness, Training Load, And Running Performance During A Major International Female Field Hockey Tournament, Aideen Mcguinness, Gerard Mcmahon, Shane Malone, Darren Kenna, David Passmore, Kieran Collins

Articles

The current observational study quantified players' activity profiles during a major international female field hockey tournament and determined whether an association exists between well-being measures and running performance within elite female hockey players. Elite female field hockey players (23 6 3 years; 162.6 6 13 cm; and 66 6 6 kg) participated in the study. Participants running performance was monitored using global positioning system technology (S5; Catapult Innovations , Scoresby, Victoria, Australia), with daily well-being questionnaires used to quantify player responses during the tournament. Thresholds for the magnitude of the observed change for each variable were determined using the Hopkins …

Identification Of Maximal Running Intensities During Elite Hurling Match-Play, Damien Young, Shane Malone, Marco Beato, Laurent Mourot, Giuseppe Coratella

Articles

The current study aimed to describe the duration-specific running intensities of elite hurling players during competition with respect to position using a rolling average method. Global positioning systems (10-Hz Viper; STATSport, Viper, Newry, Northern Ireland) were used to collect data from 36 elite hurling players across 2 seasons. Players were categorized according to playing positions (full-backs, half-backs, midfielders, half-forwards, and full-forwards). A total of 230 full match samples were obtained from 22 competitive games for analysis. The velocity-time curve was analyzed using a rolling average method, in which the maximum relative total distance (TD; m·min), high-speed running distance (HSR; m·min), …

ผลของเครื่องดื่มไฮลี่บรานซ์ไซคลิกเด็กซ์ตรินที่มีต่อสมรรถภาพทางกายแบบทนทานในนักกีฬาวิ่งมาราธอนชาย, จุฑามาศ ฉุยฉาย

Chulalongkorn University Theses and Dissertations (Chula ETD)

การศึกษานี้เป็นงานวิจัยเชิงทดลองแบบสุ่มชนิดปกปิดสองทางและสลับกลุ่ม มีวัตถุประสงค์เพื่อศึกษาผลของเครื่องดื่มไฮลี่บรานซ์ไซคลิกเด็กซ์ตริน (Highly branched cyclic dextrin; HBCD) ที่มีต่อสมรรถภาพทางกายแบบทนทานในนักกีฬาวิ่งมาราธอนชาย กลุ่มตัวอย่างเป็นนักกีฬาวิ่งมาราธอน เพศชาย อายุระหว่าง 30-39 ปี จำนวน 13 คน กลุ่มตัวอย่างเข้าร่วมการทดสอบสมรรถภาพการใช้ออกซิเจนสูงสุด (VO2max) โดยวิธีของแรมป์ (Ramp protocol) เพื่อหาจุดเริ่มล้าที่ 1 (VT1) และจุดเริ่มล้าที่ 2 (VT2) กลุ่มตัวอย่างทั้งหมดถูกสุ่มเพื่อดื่มเครื่องดื่ม 2 ชนิด คือ เครื่องดื่ม HBCD และเครื่องดื่มกลูโคส ปริมาณ 1.5 กรัม/น้ำหนักตัว 1 กิโลกรัม ละลายน้ำ 500 มิลลิลิตร วิ่งบนลู่วิ่งในความเร็วที่จุดเริ่มล้าที่ 1 (VT1) 30 นาที และวิ่งที่ความเร็วที่จุดเริ่มล้าที่ 2 (VT2) จนเหนื่อยหมดแรง ก่อนและหลังการทดสอบ เก็บข้อมูลปริมาณการสูญเสียน้ำ และก่อนการทดสอบ ระหว่างการทดสอบนาทีที่ 15 และ 30 และหลังการทดสอบทำการเก็บข้อมูลระดับน้ำตาลในเลือด ระดับแลคเตทในเลือด อัตราการเต้นของหัวใจ และการรับรู้ความรู้สึกเหนื่อย ทำการวิเคราะห์ข้อมูลโดยหาค่าเฉลี่ย ส่วนเบี่ยงเบนมาตรฐาน ทดสอบความแปรปรวนสองทาง (Two-Way Repeated measures ANOVA) และทดสอบความแตกต่างแบบไม่เป็นอิสระต่อกัน (Paired samples t-test) ที่ระดับนัยสำคัญทางสถิติที่ระดับ .05 ผลการศึกษา ไม่พบความแตกต่างของระดับน้ำตาลในเลือด ระดับแลคเตทในเลือด อัตราการเต้นของหัวใจ และการรับรู้ความรู้สึกเหนื่อยระหว่างกลุ่มตัวอย่างที่ดื่มเครื่องดื่มที่มีส่วนผสม HBCD และกลุ่มที่ดื่มเครื่องดื่มที่มีส่วนผสมของกลูโคสอย่างมีนัยสำคัญทางสถิติที่ระดับ .05 ระยะเวลาการออกกำลังกายจนเหนื่อยหมดแรงของกลุ่มที่ดื่มเครื่องดื่มที่มีส่วนผสม HBCD จะนานกว่ากลุ่มที่ดื่มเครื่องดื่มที่มีส่วนผสมของกลูโคสอย่างมีนัยสำคัญทางสถิติที่ระดับ .05 และมีปริมาณน้ำที่สูญเสียไปในระหว่างการออกกำลังกายน้อยกว่ากลุ่มที่ดื่มเครื่องดื่มที่มีส่วนผสมของกลูโคส อย่างมีนัยสำคัญทางสถิติที่ระดับ .05 สรุปผลการวิจัย การดื่มเครื่องดื่มที่มีส่วนผสมของ HBCD สามารถรักษาปริมาณน้ำที่สูญเสียไประหว่างการออกกำลังกายได้ดีกว่าการดื่มเครื่องดื่มที่มีส่วนผสมของกลูโคส และทำให้มีระยะเวลาการออกกำลังกายยาวนานขึ้น

Effects Of Load Carriage On Shoulder Neuromuscular Functions And Recovery, Muataz R. Almaddah

Theses and Dissertations--Rehabilitation Sciences

Load carriage is a primary source for injury occurrence among military personnel and recreational hikers affecting all body areas. The shoulder ranks as the second or third most common site of injuries among military personnel. Many studies report that elevations in self-reported fatigue, soreness, and discomfort in the shoulders accompany the load carriage. Almost 50% of military personnel experienced a load carriage injury during the first episode of training, and 75% of those injured suffered a second injury during their career. The goal of this research project is to investigate the components associated with load carriage shoulder symptoms to determine …

Influences Of Functional And Psychological Factors On Biomechanics Following An Anterior Cruciate Ligament (Acl) Reconstruction, Chelsey Roe

Theses and Dissertations--Rehabilitation Sciences

Objective: The aims of this research were to identify gaps in the literature related to return to sport (RTS) test batteries following primary anterior cruciate ligament reconstruction (ACLR) (Aim 1) and define recovery in athletes from 4-9 months after ACLR across three domains: 1) psychological recovery and biomechanics (Aim 2), 2) rehabilitation quantity and biomechanics (Aim 3), and 3) functional performance and biomechanics (Aim 4). Ultimately, the results of this research would quantify recovery following ACLR in athletes with a desire to RTS and identify objective criteria throughout rehabilitation prior to RTS.

Participants: Twenty-two post-ACLR athletes 17 females, 8 males, …

Methodological Considerations For The Determination Of The Critical Resistance For The Deadlift, Alexander C. Moss

Theses and Dissertations--Kinesiology and Health Promotion

This study determined if plate movement during conventional deadlifting affects critical resistance (CR) estimates derived from the linear work limit (W_lim) versus repetitions relationship. Eleven subjects completed 1-repetition maximum (1RM) deadlift testing followed by 8 visits, to determine the number of repetitions to failure at 50%, 60%, 70%, and 80% 1RM for both reset (RS) and touch-and-go (TG) methods, respectively. The CR was calculated as slope of the line of total work completed (repetitions × load [in kilograms]) versus total repetitions for each of four intensities (50-80% 1RM). The number of repetitions to failure were determined at CR …

Effects Of Relative Inertial Load On Performance Measures And Quadriceps Electromyography During Flywheel Resistance Training Squats, Jason Todd Brantley Jr.

Theses and Dissertations--Kinesiology and Health Promotion

Flywheel resistance training (FRT) has become an increasingly popular modality for exercising due to its unique application of providing external resistance. Little is known about how changes in relative inertial loads affects performance and electromyography (EMG) activity. The purpose of this study was to examine how performance metrics and quadriceps EMG activity are affected by relative inertial load during FRT-based squats. Fifteen resistance trained individuals completed five sets of five repetitions of squats with varying relative inertial loads in random order. Peak Eccentric Power (PEP), Peak Concentric Power (PCP), average force, total work, and repetition time were measured. Surface level …

Using Velocity To Predict The Maximum Dynamic Strength In The Power Clean, G. Gregory Haff, Amador Garcia-Ramos, Lachlan P. James

Research outputs 2014 to 2021

The primary aim of the present study was to examine the commonly performed training exercise for athlete preparation. Twenty-two recreationally trained males (age: 26.3 ± 4.1 y, height: 1.80 ± 0.07 m; body mass (BM): 87.01 ± 13.75 kg, 1-repetitoon maximum(1-RM)/BM: 0.90 ± 0.19 kg) participated in the present study. All subjects had their 1-RM power clean tested with standard procedures. On a separate testing day, subjects performed three repetitions at 30% and 45%, and two repetitions at 70% and 80% of their 1-RM power clean. During all trials during both sessions, peak velocity (PV) and mean velocity (MV) were …