Sports Sciences Commons^™

Relationship Between Concentric Velocities At Varying Intensity In The Back Squat Using A Wireless Inertial Sensor, Kevin M. Carroll, Kimitake Sato, George K. Beckham, N. Travis Triplett, Cameron V. Griggs, Michael H. Stone

ETSU Faculty Works

Objectives: The purpose of this study was to examine the relationship of velocities in the back squat between one repetition maximum (1RM) and submaximally loaded repetition maximum (RM) conditions, specifically in regard to what has been described as the minimal velocity threshold (MVT). The MVT describes a minimum concentric velocity that an individual must reach or surpass in order to successfully complete a repetition. Design: To test the presence of a MVT, participants were tested for 1RM and RM back squat ability. The mean concentric veloci ties (MCV) of the last successful repetition of each condition were then compared. Methods: …

Comparison Of The Relationship Between Lying And Standing Ultrasonography Measures Of Muscle Morphology With Isometric And Dynamic Force Production Capabilities, John P. Wagle, Kevin M. Carroll, Aaron J. Cunanan, Christopher B. Taber, Alexander Wetmore, Garett E. Bingham, Brad H. Deweese, Kimitake Sato, Charles A. Stuart, Michael H. Stone

ETSU Faculty Works

The purpose of the current study was (1) to examine the differences between standing and lying measures of vastus lateralis (VL), muscle thickness (MT), pennation angle (PA), and cross-sectional area (CSA) using ultrasonography; and (2) to explore the relationships between lying and standing measures with isometric and dynamic assessments of force production—specifically peak force, rate of force development (RFD), impulse, and one-repetition maximum back squat. Fourteen resistance-trained subjects (age = 26.8 ± 4.0 years, height = 181.4 ± 6.0 cm, body mass = 89.8 ± 10.7 kg, back squat to body mass ratio = 1.84 ± 0.34) agreed to participate. …

The Impact Of Pre-Performance Anxiety On Vo2peak Values In Female Collegiate Soccer Players, Mallory J. Wirth

Departmental Honors Projects

Peak oxygen consumption (VO₂peak) testing is commonly performed to assess endurance training effectiveness in athletes, including soccer players. However, how variables such as playing position, training type (off-vs. in-season), and performance anxiety levels affect maximal exercise capacity have not been determined. PURPOSE: The aim of this study was to determine the effect of positioning, training type, and pre-performance directional anxiety on VO₂ max values in female soccer players. METHODS: Sixteen female collegiate soccer players completed two trials using a cycle ergometer. VO₂peak was determined by the participant’s inability to continue pedaling and/or an established plateau …

The Effects Of Off-Season And In-Season Training On Lactate Threshold In Ncaa Division Iii Female Soccer Players, Rachael M. Nelson

Departmental Honors Projects

Soccer requires a significant amount of aerobic and anaerobic training to improve one’s performance. Because lactate threshold (LT) is an important component of endurance sport performance, testing the LT of soccer players in response to their off-season and in-season training regimens could help to gauge the success of those programs in improving or maintaining fitness levels. This study evaluated the effects of off-season training and in-season training types on LT in 11 NCAA Division III female soccer players (age 19.5 +/- 1.3 years). Off-season training was comprised of aerobic and anaerobic workouts, while in-season training was more sport-specific, and involved …

The Effect Of Pack Size On Finish Time In The Fukuoka Marathon, Fernando E. Espinosa Jenkins

Departmental Honors Projects

Elite marathon runners have been pushing the limits of the human body, currently setting the world record near two hours. Notable factors while running include physiological, psychological, and strategic factors. Utilizing pack running may be a strategic factor to improve finish time and placement.

Purpose

To explore the effect of individuals running in various size packs on their place and finish time in the Fukuoka Marathon. This race has seen some of the most talented runners in history, as the world record has been broken twice at the Fukuoka Marathon, in 1967 and 1981.

Methods

The data set of results …

การประเมินอิทธิพลของสิ่งอำนวยความสะดวกทางการกีฬาของศูนย์กีฬาแห่งจุฬาลงกรณ์มหาวิทยาลัยที่มีผลต่อความพึงพอใจของผู้มาใช้บริการ, อุทัยวรรณ ทองสุข

Chulalongkorn University Theses and Dissertations (Chula ETD)

การวิจัยครั้งนี้มีวัตถุประสงค์เพื่อประเมินอิทธิพลของสิ่งอำนวยความสะดวกทางการกีฬาของศูนย์กีฬาแห่งจุฬาลงกรณ์มหาวิทยาลัยที่มีผลต่อความพึงพอใจของผู้มาใช้บริการ และเปรียบเทียบอิทธิพลของสิ่งอำนวยความสะดวกทางการกีฬาของศูนย์กีฬาแห่งจุฬาลงกรณ์มหาวิทยาลัยที่มีผลต่อความพึงพอใจของผู้มาใช้บริการ จำแนกตาม เพศ อายุ สถานภาพการสมรส และสถานภาพผู้มาใช้บริการ กลุ่มตัวอย่างคือ ผู้มาใช้บริการสิ่งอำนวยความสะดวกทางการกีฬาของศูนย์กีฬาแห่งจุฬาลงกรณ์มหาวิทยาลัย จำนวน 400 คน เครื่องมือที่ใช้ในการวิจัยครั้งนี้ คือ แบบสอบถาม และนำมาวิเคราะห์ข้อมูลใช้สถิติพื้นฐานได้แก่ ค่าความถี่ ค่าร้อยละ ค่าเฉลี่ย และส่วนเบี่ยงเบนมาตรฐาน ส่วนสถิติในการทดสอบสมมติฐานใช้ค่าสถิติ สมการถดถอยพหุคูณ (Multiple Regression) การเปรียบเทียบค่าเฉลี่ย 2 กลุ่มที่เป็นอิสระต่อกัน (Independent Sample t-test) วิเคราะห์ความแปรปรวนทางเดียว (One-Way ANOVA) ผลการวิจัยพบว่า ผู้ตอบแบบสอบถามส่วนใหญ่เป็นเพศชาย (ค่าร้อยละ=59.50) มีอายุในช่วง 18-29 ปี มากที่สุด (ค่าร้อยละ=69.00) ส่วนใหญ่มีสถานภาพโสด (ค่าร้อยละ=86.30) มีการศึกษาสูงสุดระดับปริญญาตรี มากที่สุด (ค่าร้อยละ60.00) สถานภาพของผู้มาใช้บริการเป็นนิสิตจำนวนมากที่สุด (ค่าร้อยละ=60.30) ผลการประเมินอิทธิพลของสิ่งอำนวยความสะดวกทางการกีฬาของศูนย์กีฬาแห่งจุฬาลงกรณ์มหาวิทยาลัยที่มีผลต่อความพึงพอใจของผู้มาใช้บริการ โดยใช้สถิติสมการถดถอยเชิงเส้นพหุคูณ (Multiple Regression) พบว่า สิ่งอำนวยความสะดวกทางการกีฬาของศูนย์กีฬาแห่งจุฬาลงกรณ์มหาวิทยาลัย ด้านกายภาพ ด้านผลิตภัณฑ์หลัก และด้านบุคคลที่ให้บริการ มีผลต่อความพึงพอใจของผู้มาใช้บริการ อย่างมีนัยสำคัญทางสถิติที่ระดับ 0.05 โดยด้านผลิตภัณฑ์หลักมีผลต่อความพึงพอใจมากที่สุด รองลงมาคือ ด้านกายภาพ และด้านบุคคลที่ให้บริการ ตามลำดับ เมื่อเปรียบเทียบความพึงพอใจในการใช้บริการสิ่งอำนวยความสะดวกทางการกีฬาของศูนย์กีฬาแห่งจุฬาลงกรณ์มหาวิทยาลัย จำแนกตามเพศ โดยใช้สถิติการเปรียบเทียบค่าเฉลี่ย 2 กลุ่มที่เป็นอิสระต่อกัน(Independent Sample t-test) พบว่า เพศของผู้ใช้บริการที่แตกต่างกัน ส่งผลต่อความพึงพอใจในการใช้บริการสิ่งอำนวยความสะดวกทางการกีฬาของศูนย์กีฬาแห่งจุฬาลงกรณ์มหาวิทยาลัยไม่แตกต่างกัน เมื่อจำแนกตาม อายุ สถานภาพสมรส และสถานภาพผู้ใช้บริการ โดยใช้สถิติ ใช้วิธีวิเคราะห์ความแปรปรวนทางเดียว (One - Way ANOVA) และเปรียบเทียบรายคู่โดยใช้วิธี SLD พบว่า อายุ สถานภาพสมรส และสถานภาพผู้ใช้บริการที่แตกต่างกัน ส่งผลต่อความพึงพอใจในการใช้บริการสิ่งอำนวยความสะดวกทางการกีฬาของศูนย์กีฬาแห่งจุฬาลงกรณ์มหาวิทยาลัยแตกต่างกัน สรุปผลการวิจัยพบว่า สิ่งอำนวยความสะดวกทางการกีฬาของศูนย์กีฬาแห่งจุฬาลงกรณ์มหาวิทยาลัย ด้านผลิตภัณฑ์หลัก ด้านกายภาพ และด้านบุคคลที่ให้บริการ มีผลต่อความพึงพอใจของผู้มาใช้บริการ ตามลำดับ

Injuries In Collegiate Women’S Volleyball: A Four-Year Retrospective Analysis, Christopher J. Sole, Ashley A. Kavanaugh, Michael H. Stone

ETSU Faculty Works

A four-year retrospective analysis of injury data was conducted on a collegiate (NCAA Division I) women’s volleyball team. Twenty athletes (Year 1: age = 19.4 ± 0.9 y, height = 175.2 ± 5.1 cm, body mass = 70.5 ± 10.2 kg; Year 2: age = 20.1 ± 1.0 y, height = 175.7 ± 4.7 cm, body mass = 69.5 ± 10.1 kg; Year 3: age = 20.1 ± 1.4 y, height = 173.8 ± 6.3 cm, body mass = 69.9 ± 10.8 kg; Year 4: age = 19.5 ± 1.4 y, height = 174.4 ± 8.6 cm, body mass = …

The Relationships Between Hip And Knee Extensor Cross-Sectional Area, Strength, Power, And Potentiation Characteristics, Timothy J. Suchomel, Michael H. Stone

ETSU Faculty Works

The purpose of this study was to examine the relationships between muscle cross-sectional area (CSA), maximal strength, power output, and maximum potentiation characteristics. The vastus lateralis and biceps femoris CSA, one repetition maximum (1RM) back squat, 1RM concentric-only half-squat (COHS) strength, static jump power output, and maximum potentiation characteristics of 17 resistance-trained men was assessed during several testing sessions. Pearson’s correlation coefficients were used to examine the relationships between CSA, strength, power output, and maximum potentiation measures. Moderate-to-strong relationships existed between CSA and strength measures (r = 0.462–0.643) as well as power output (r = 0.396–0.683). In addition, moderate-to-strong relationships …

Cell Free Dna As A Marker Of Training Status In Weightlifters, Jeremy A. Gentles, William G. Hornsby, Christine L. Coniglio, Andy R. Dotterweich, Jon A. Miller, Charles A. Stuart, Michael H. Stone

ETSU Faculty Works

The purpose of this investigation was to elucidate the changes in cf-DNA as it relates to fluctuations in resistance training workloads and intensities. The relationship between cell free DNA (cf-DNA), C-reactive protein (CRP), creatine kinase (CK), testosterone (T), cortisol (C), testosterone-cortisol ratio (T:C), body mass and body composition were also examined. Eight weightlifters (5 males and 3 females, age = 25 ± 3.5 yr, body mass = 88.3 ± 22.7 kg, height = 173.8 ±8.4 cm) volunteered to participate in this study. Venous blood samples, body mass and body composition were taken six times, each corresponding to the end of …

Overweight, Obesity, And Screen-Time Viewing Among Chinese School-Aged Children: National Prevalence Estimates From The 2016 Physical Activity And Fitness In China—The Youth Study, Yujun Cai, Xihe Zhu, Xueping Wu

Human Movement Studies & Special Education Faculty Publications

Purpose: This study presents the most recent estimates of prevalence of overweight, obesity, and screen-time viewing among Chinese school-aged children. Demographic differences in these estimates between sexes and resident locales were also examined.

Methods: Cross-sectional analyses of 116,615 Chinese school children 9 to 17 years of age who participated in the 2016 Physical Activity and Fitness in China—the Youth Study project. Outcomes were the prevalence of children's overweight (body mass index [BMI] ≥ 85th - < 95th percentile) and obesity (BMI ≥95th percentile) (defined by the Working Group on Obesity in China) and not meeting screen-time viewing recommendations (“not meeting” was defined as more than 2 h per day of viewing activities after school). Analyses were conducted on the whole sample and by school grade cohorts (primary, junior middle, junior high schools), sex, and residence locales (urban, rural).

Results: Overall, 14.4% (95% confidence interval (CI): 13.8%-15.0%) of children and adolescents were overweight, 11.9% (95% CI: 11.0%-13.0%) were obese, and 36.8% (95% …

Frequency Of Chronic Gastrointestinal Distress In Runners: Validity And Reliability Of A Retrospective Questionnaire, Patrick B. Wilson

Human Movement Studies & Special Education Faculty Publications

Gastrointestinal (GI) symptoms may affect up to 90% of competitors during endurance races. Studies have typically assessed GI symptoms retrospectively or only over an acute timeframe, and information on the validity and reliability of the questionnaires employed is lacking. This investigation aimed to estimate the frequency of GI distress experienced by runners over 30 days and to establish the validity and reliability of a retrospective GI symptom questionnaire. Runners (70 men, 75 women) recorded GI symptoms with a prospective journal for 30 days. Retrospective GI symptom data were then collected after the 30-day period on two occasions within one week. …

The Effects Of Golf Stance On The Peak Knee Adduction Moment During The Golf Swing, Quenten L. Hooker

Theses and Dissertations--Kinesiology and Health Promotion

INTRODUCTION: The knee joint is one of the most frequently injured structures in the game of golf. The loads experienced by the knee during the golf swing are typically greater than those experienced during walking. In particular, a heightened lead limb peak external knee adduction moment has been linked to the progression of medial compartment knee osteoarthritis (OA). Altering movement patterns is a common strategy that can be used to reduce loading on the knee joint but has received little attention during the golf swing. Also, while such manipulations may be beneficial from an injury prevention perspective, they may have …

Exercise Preserves Physical Function In Prostate Cancer Patients With Bone Metastases, Daniel A. Galvao, Dennis R. Taaffe, Nigel Spry, Prue Cormie, David Joseph, Suzanne K. Chambers, Raphael Chee, Carolyn J. Peddle-Mcintyre, Nicolas H. Hart, Freerk T. Baumann, James Denham, Michael Baker, Robert U. Newton

Research outputs 2014 to 2021

The presence of bone metastases has excluded participation of cancer patients in exercise interventions and is a relative contraindication to supervised exercise in the community setting due to concerns of fragility fracture. We examined the efficacy and safety of a modular multi-modal exercise program in prostate cancer patients with bone metastases.Between 2012 and 2015, 57 prostate cancer patients (70.0 ± 8.4 years; BMI 28.7 ± 4.0 kg/m) with bone metastases (pelvis 75.4%, femur 40.4%, rib/thoracic spine 66.7%, lumbar spine 43.9%, humerus 24.6%, other sites 70.2%) were randomised to multi-modal supervised aerobic, resistance and flexibility exercises undertaken thrice weekly (EX, n …

Considerations On The Assessment And Use Of Cycling Performance Metrics And Their Integration In The Athlete's Biological Passport, Paolo Mensaspa, Chris Abbiss

Research outputs 2014 to 2021

Over the past few decades the possibility to capture real-time data from road cyclists has drastically improved. Given the increasing pressure for improved transparency and openness, there has been an increase in publication of cyclists' physiological and performance data. Recently, it has been suggested that the use of such performance biometrics may be used to strengthen the sensitivity and applicability of the Athlete Biological Passport (ABP) and aid in the fight against doping. This is an interesting concept which has merit, although there are several important factors that need to be considered. These factors include accuracy of the data collected …

Comparison Of Perceived Exertion While Exercising At The Same Intensity On Land And Aquatic Treadmills, Amanda D. Montemayor, Iris A. Javersak

Williams Honors College, Honors Research Projects

The purpose of this study was to determine if at the same intensity, two separate modalities of exercise could be perceived to have different difficulties. The modalities chosen for this study were underwater treadmill versus land treadmill. It was hypothesized that at the same sub maximal protocol, the underwater treadmill would be perceived as easier than the land treadmill. Both an objective measure, heart rate, and a subjective measure, a 10-point Borg rate of perceived exertion (RPE) scale (Borg, 1982), were used. Ten healthy University of Akron students from the ages 19-23 were used for this study. The students did …

Comparison Of Physiological Adaptations In Highly Trained Aerobic Endurance Athletes And Highly Trained Resistance Athletes, Sarah Falbo

Williams Honors College, Honors Research Projects

ABSTRACT

Purpose: To compare the physiological differences between highly trained resistance and aerobic athletes (who perform five or more hours per week of resistance or aerobic exercise).

Methods: Participants had resting heart rate, blood pressure and lactate taken before entering the BOD POD to get body fat percentage. Then a five minute warm up on a cycle ergometer before doing the VO2 max treadmill test following the Bruce Protocol. At the completion of the VO2 max treadmill test, participants had heart rate recorded from the heart rate monitor, blood pressure and lactate were taken immediately after the max test. The …

Hypertension Prevalence In College Seniors, Eric Beaujon, Jared Mooney

Williams Honors College, Honors Research Projects

The purpose of this study was to explore factors that may predispose college seniors to pre-hypertensive or hypertensive blood pressures. This study was done by taking students' blood pressures and administering a self reported survey to all participants asking about predisposing factors. Results indicated that none of the students tested exhibited hypertensive blood pressures, but five of them had pre-hypertensive blood pressures. Factors that seemed to correlate with the pre-hypertensive students included commute time, having changed majors during their college career, alcohol consumption, hours worked per week and post graduation plans (or lack thereof).

A Comparison Of Changes In Women's Cardiovascular Fitness And Body Composition After Performance In Zumba, Tabata, And Cycling, Kristi N. Kester

Williams Honors College, Honors Research Projects

Aerobic group exercise is important to prevent against cardiovascular, pulmonary, and metabolic diseases. Regular exercise can help to reduce the risk of these diseases and premature death. Group exercise classes have shown to be effective in reducing weight, blood pressure, and body composition Further research is necessary to evaluate the effectiveness of these aerobic group exercise classes to one another. PURPOSE: To evaluate and compare the potential health benefits that may occur for women who participate in regular group exercise classes at the Kohl Family YMCA. METHODS: A surrey and body measurements were taken of females enrolled an eight-week aerobic …

Examination Of Hamstring Flexibility And Maximal Sprint Speed, Zach J. Guiser

Williams Honors College, Honors Research Projects

Abstract

Purpose

Maximal sprinting ability is a highly sought after trait in athletes. Many studies have been performed in an effort to determine the factors of sprinting ability, such as the vertical jump, squatting ability, and others. However, very limited research has been performed on the relationship between flexibility and maximal sprinting speed. The vast majority of research done involving hamstring flexibility and performance involves the acute effects of stretching on performance, or the relationship between flexibility and injury prevention. The purpose of this study is to determine the relationship between hamstring flexibility and maximal sprinting speed.

Methods

This study …

Head Above Water Weighing: A Valid Method To Measure Body Fat Storage?, Molly Lin Hussey

Dissertations and Theses @ UNI

Hydrostatic weighing using underwater weighing with full lung expiration has been established as a valid method to assess body composition; however, many people do not prefer to submerse their heads in water due to various reasons. Keeping the head above water as a method for hydrostatic weighing at full lung capacity has been tested but has not been accepted as an alternative method. Purpose: The main purpose of this study is to determine if hydrostatic weighing with the head above water at residual volume could provide valid estimates of total body fat. Methods: Fifty-eight subjects (F=29. M=29) participated …