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Full-Text Articles in Sports Sciences

ผลของการกระตุ้นสมองด้วยไฟฟ้ากระแสตรงผ่านกะโหลกศีรษะร่วมกับการฝึกการทรงตัวในผู้สูงอายุที่มีประวัติล้ม, ณิชาภา คุ้มพะเนียด Jan 2017

ผลของการกระตุ้นสมองด้วยไฟฟ้ากระแสตรงผ่านกะโหลกศีรษะร่วมกับการฝึกการทรงตัวในผู้สูงอายุที่มีประวัติล้ม, ณิชาภา คุ้มพะเนียด

Chulalongkorn University Theses and Dissertations (Chula ETD)

งานวิจัยนี้ มีวัตถุประสงค์เพื่อศึกษาปัจจัยทางด้านประสบการณ์ส่วนบุคคลที่ส่งผลต่อการเข้าสู่อาชีพ พริตตี้ และกระบวนการรับและปรับใช้วัฒนธรรมของพริตตี้เพื่อให้ตนดำรงอยู่ในกลุ่มอาชีพและสังคมได้ โดยใช้แนวคิดเรื่องฮาบิทัส และทุน ของปิแอร์ บูร์ดิเยอร์ การศึกษานี้ ผู้วิจัยใช้วิธีวิจัยเชิงคุณภาพ โดยการสัมภาษณ์กลุ่มบุคคลที่ศึกษาแบบเจาะลึก (In-depth interview) และมีการเลือกกลุ่มตัวอย่างแบบเจาะจง (Purposive sampling) โดยมีพริตตี้ในเขตกรุงเทพมหานคร เป็นกรณีศึกษา จำนวน 11 คน ผลการศึกษาพบว่า ประสบการณ์ส่วนบุคคลที่ส่งผลต่อแนวจริตของพริตตี้ เกิดจากการเลี้ยงดูและสภาพแวดล้อมที่มีลักษณะการให้อิสระ และฝึกฝนการเอาตัวรอดให้อยู่ด้วยตนเองได้ รวมถึงการเติบโตท่ามกลางการแสดงออกในเวทีสาธารณะตั้งแต่อายุยังน้อย พริตตี้จึงมีลักษณะเด่นคือ มีความคุ้นชินกับพื้นที่สาธารณะ มีความสามารถในการแก้ปัญหาเฉพาะหน้า มีความช่างสังเกต และมีการวางท่วงท่าในการตอบสนองต่อความต้องการของกลุ่มเป้าหมายได้อย่างเหมาะสม เหล่านี้คือฮาบิทัส ที่ได้พัฒนากลายไปเป็นทักษะหรือทุนวัฒนธรรมประเภทที่มีอยู่ในตัวบุคคล (Embodied form) ซึ่งสามารถนำไปแลกเปลี่ยนเป็นทุนเศรษฐกิจ ทุนสังคม และทุนสัญลักษณ์ ต่อไป เมื่อเข้าสู่อาชีพพริตตี้แล้ว แนวจริตดังกล่าว จะเข้าไปมีผลตั้งแต่การเลือกรับงาน การเลือกลูกค้า โดยในระหว่างการทำงาน พริตตี้จะให้ความสำคัญกับการวางตัวให้เหมาะสมกับลูกค้ามากที่สุด เพื่อเป็นการป้องกันไม่ให้ลูกค้าสามารถเพิ่มระดับความเข้มข้นของรูปแบบงานที่ตนไม่ได้เลือกรับได้ โดยมีความสวยงามของรูปร่างหน้าตาและการพูด เป็นทักษะรองลงมา ความมั่นใจและความกล้าแสดงออก เป็นอันดับสุดท้าย นอกจากนี้ ฮาบิทัสยังส่งผลต่อการเลือกคู่รักของพริตตี้ ที่จะต้องให้อิสระและมีทักษะในการพึ่งตนเองได้เช่นเดียวกับตน รวมถึงการประกอบอาชีพในอนาคตหลังจากเลิกอาชีพพริตตี้แล้ว พริตตี้จะยังคงไว้ซึ่งกลุ่มอาชีพอิสระ เช่น เปิดร้านค้า หรือทำธุรกิจส่วนตัว ต่อไป


Knowledge And Behavioral Patterns Of Youth Ice Hockey Parents Regarding Sport Concussion: A Pilot Study, Jeff G. Konin, Delaney Horsley Jan 2017

Knowledge And Behavioral Patterns Of Youth Ice Hockey Parents Regarding Sport Concussion: A Pilot Study, Jeff G. Konin, Delaney Horsley

Internet Journal of Allied Health Sciences and Practice

Purpose: There is an abundance of available concussion education programs for parents of youth ice hockey players. Parents play a vital role in recognizing signs and symptoms of a concussion sustained by a child, and therefore their knowledge and retention of such information is deemed to be very important. The purpose of the pilot survey is identify the general knowledge parents of youth ice hockey players possess regarding concussion. Methods: A survey of a sample of convenience was utilized. Forty-five parents (40 to 49 years of age) of youth ice hockey players were asked to complete a one-page survey to …


Retrospective Analysis Of Contact Sport Participation On Cognitive Function In Healthy Athletes, Lisa C. Martinez Jan 2017

Retrospective Analysis Of Contact Sport Participation On Cognitive Function In Healthy Athletes, Lisa C. Martinez

Cal Poly Humboldt theses and projects

This study explored the effects of contact and limited contact sport participation on neurocognitive function in non-concussed collegiate and adolescent athletes over time. Athletes participating in contact and limited contact sports have an increased risk of sustaining neurocognitive injuries, known as subconcussive blows, compared to non-contact sport athletes. We hypothesized that athletes participating in contact and limited contact sports, would exhibit a deficit in neurocognitive function following multiple seasons of play when compared to athletes participating in non-contact sports. Using a mixed repeated measures MANOVA statistical design, we analyzed computerized neurocognitive baseline ImPACT composite scores (verbal memory, visual memory, visual …


The Reliability Of The Navicular Drop Test And Its Transferability To Dynamic Movement, Joshua Krispin Jan 2017

The Reliability Of The Navicular Drop Test And Its Transferability To Dynamic Movement, Joshua Krispin

College of Graduate Studies: Theses & Dissertations

Background: Navicular drop can be defined as the distance the navicular tuberosity moves from a standing weight bearing to a standing neutral position, as the subtalar joint moves from a relaxed position to a neutral position. Navicular drop is an important measurement for clinicians used to describe foot function, pronation, and excessive movement seen in several pathologies. Objective: The purpose of this study is to see if navicular drop is influenced by mode or speed of locomotion, if it is will there be other influences such as the forefoot and heel soft tissue, and will those factors influence those measures. …


Concussion Knowledge Of Missoula Youth Hockey Participants And Their Parents, Samantha Riordan Jan 2017

Concussion Knowledge Of Missoula Youth Hockey Participants And Their Parents, Samantha Riordan

Graduate Student Theses, Dissertations, & Professional Papers

Abstract:

Background: The Dylan Steigers Protection of Youth Athletes Act (DSPYAA) was passed by Montana legislature in 2013 which calls for mandatory concussion education of coaches, parents, and athletes. This law only applies to school sponsored sports, excluding those involved in youth sports organizations (YSO), such as youth hockey.

Hypothesis: Participating youth athletes and parents will not be able to identify signs and symptoms of a concussion and will not be able to identify future consequences of a poorly managed concussion.

Study Design: Cross sectional survey. Level of Evidence: Level 4

Methods: A descriptive questionnaire, Concussion Knowledge in Youth Sports …


Analysis Of Sideline Concussion Screening Tools In An Athletic Setting, Steven Young Jan 2017

Analysis Of Sideline Concussion Screening Tools In An Athletic Setting, Steven Young

Graduate Student Theses, Dissertations, & Professional Papers

This paper serves as a primer to healthcare professionals of the now and future of sideline screening for concussion. In the past decade, significant research into sports-related concussions has expanded understanding of what is as a very complex injury. As the definition of concussion has evolved, the impact they have is put into perspective. As more research into the short- and long-term effects of concussions brings to light the effects of continuing to participate after suffering a concussion, the importance of keeping concussed athletes off the field is now understood as a potential life or death situation. With the dangers …


The Relevance Of Sex Differences In Performance Fatigability, Sandra K. Hunter Nov 2016

The Relevance Of Sex Differences In Performance Fatigability, Sandra K. Hunter

Exercise Science Faculty Research and Publications

Performance fatigability differs between men and women for a range of fatiguing tasks. Women are usually less fatigable than men, and this is most widely described for isometric fatiguing contractions and some dynamic tasks. The sex difference in fatigability is specific to the task demands so that one mechanism is not universal, including any sex differences in skeletal muscle physiology, muscle perfusion, and voluntary activation. However, there are substantial knowledge gaps about the task dependency of the sex differences in fatigability, the involved mechanisms, and the relevance to clinical populations and with advanced age. The knowledge gaps are in part …


Management And Rehabilitation Strategies Following Ied Related Mild Traumatic Brain Injury In Civilian Settings - What To Expect And How To Optimize Recovery From Mtbi, Stefanie Podlog (Nee Schulte), Leslie W. Podlog, Wesley C. Kory Tsgt, William J. Brown Ltc Jul 2016

Management And Rehabilitation Strategies Following Ied Related Mild Traumatic Brain Injury In Civilian Settings - What To Expect And How To Optimize Recovery From Mtbi, Stefanie Podlog (Nee Schulte), Leslie W. Podlog, Wesley C. Kory Tsgt, William J. Brown Ltc

Athletic Training Collection

The wide array of psychological and physical responses following an IED bombing may reduce the likelihood that appropriate assessment and recovery from mTBI occur. Such a situation is problematic as mTBI itself may negatively influence the recovery from the traumatic event or associated injuries if not diagnosed and managed properly. Consequently, the overall aim of this article is to better inform healthcare practitioners, patients, and patients’ social support networkabout the nature of IED-related mild traumatic brain injuries. In so doing, we hope to facilitate enhanced assessment, management, and rehabilitation of this injury. In particular, the specific goals of the review …


Inter-Rater Agreement Of The Visually Rated Single-Leg Squat Assessment, Christopher Ballance, Daniel Clifton, Eric Schussler, Angie Beisner, Jimmy Onate May 2016

Inter-Rater Agreement Of The Visually Rated Single-Leg Squat Assessment, Christopher Ballance, Daniel Clifton, Eric Schussler, Angie Beisner, Jimmy Onate

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

No abstract provided.


The Effect Of Acute Aerobic Exercise On Hemostasis In Obstructive Sleep Apnea Patients, Ryan A. Martin May 2016

The Effect Of Acute Aerobic Exercise On Hemostasis In Obstructive Sleep Apnea Patients, Ryan A. Martin

Masters Theses, 2010-2019

Purpose: To determine the hemostatic response after acute aerobic exercise in Obstructive Sleep Apnea (OSA). Methods: Eighteen males were recruited from the university and local community. Individuals who presented evidence of cardiovascular, pulmonary, or metabolic disease were excluded. Apnea-Hypopnea Index (AHI) > 5 was criteria for OSA. Subjects performed a treadmill exercise test at 35% and 70% predicted VO2reserve during the morning hours. Pre exercise blood samples were obtained after 15 minutes supine rest and within two minutes following exercise. Repeated Measures ANOVA were performed for Factor VIII antigen, tPA antigen, tPA activity, and PAI-1 activity across two time …


An Epidemiological Look At Injuries Among High School Athletes Participating In A Variety Of Sports For Both Sexes, Emily H. Wills May 2016

An Epidemiological Look At Injuries Among High School Athletes Participating In A Variety Of Sports For Both Sexes, Emily H. Wills

Undergraduate Honors Theses

Physical activity is part of a healthy lifestyle, but participating in athletic activities like team sports can lead to injury. This study was designed to find the differences in types of high school sports injuries and how frequently these injuries occur among different sports and between males and females. A survey was given to members of the football, boys’ basketball, girls’ basketball, baseball, softball, and volleyball teams of a central Appalachian high school. The highest rate of injury was found in girls’ basketball at 86.7%, followed by football at 85.2%, boys’ basketball at 70.6%, softball and volleyball each at 69.2%, …


Utilization Of The Clinical Laboratory For The Implementation Of Concussion Biomarkers In Collegiate Football And The Necessity Of Personalized And Predictive Athlete Specific Reference Intervals, Stefanie Podlog (Nee Schulte), Natalie N. Rasmussen, Joseph W. Mcbeth, Patrick Q. Richards, Eric Yochem, David J. Petron, Frederick G. Strathmann Jan 2016

Utilization Of The Clinical Laboratory For The Implementation Of Concussion Biomarkers In Collegiate Football And The Necessity Of Personalized And Predictive Athlete Specific Reference Intervals, Stefanie Podlog (Nee Schulte), Natalie N. Rasmussen, Joseph W. Mcbeth, Patrick Q. Richards, Eric Yochem, David J. Petron, Frederick G. Strathmann

Athletic Training Collection

Background: A continued interest in concussion biomarkers makes the eventual implementation of identified biomarkers into routine concussion assessment an eventual reality. We sought to develop and test an interdisciplinary approach that could be used to integrate blood-based biomarkers into the established concussion management program for a collegiate football team.

Methods: We used a CLIA-certified laboratory for all testing and chose biomarkers where clinically validated testing was available as would be required for results used in clinical decision making. We summarized the existing methods and results for concussion assessment across an entire season to identify and demonstrate the challenges with the …


Longitudinal Examination Of Perceived Stress And Depression Symptomology In Division I Student-Athletes, Bobby Daigle Jan 2016

Longitudinal Examination Of Perceived Stress And Depression Symptomology In Division I Student-Athletes, Bobby Daigle

Electronic Theses and Dissertations

CONTEXT: Concussions are all too prevalent in amongst athletes. Concussions make up almost 5 percent of all collegiate athletic injuries. Concussions have been linked with many long lasting effects including depression and increased stress or anxiety.

OBJECTIVE: To longitudinally examine post-concussion depression and stress levels in National Collegiate Athletic Association Division 1 athletes.

DESIGN: Descriptive longitudinal study.

SETTING: National Collegiate Athletic Association Division I collegiate athletics.

PARTICIPANTS: Concussed and uninjured Division I collegiate athletes, ages 18-22, competing in football, women’s soccer, baseball, softball, and women’s track.

INTERVENTION(S): Participants completed the CES-D at baseline, 1 week, 1 month, and 3 months …


The Effect Of Six Days Of Dietary Nitrate Supplementation On Performance In Trained Crossfit Athletes, Samuel J. Kramer, Daniel A. Baur, Maria T. Spicer, Matthew D. Vukovich Jan 2016

The Effect Of Six Days Of Dietary Nitrate Supplementation On Performance In Trained Crossfit Athletes, Samuel J. Kramer, Daniel A. Baur, Maria T. Spicer, Matthew D. Vukovich

Health and Nutritional Sciences Faculty Publications

Background: While it is well established that dietary nitrate reduces the metabolic cost of exercise, recent evidence suggests this effect is maintained 24 h following the final nitrate dose when plasma nitrite levels have returned to baseline. In addition, acute dietary nitrate was recently reported to enhance peak power production. Our purpose was to examine whether chronic dietary nitrate supplementation enhanced peak power 24 h following the final dose and if this impacted performance in a heavily power-dependent sport.
Methods: In a double-blind, randomized, crossover design, maximal aerobic capacity, body composition, strength, maximal power (30 s Wingate), endurance (2 km …


Analysis Of Changes In Muscle Architecture And Explosive Ability In Ncaa Division I Volleyball Players, Caleb D. Bazyler, Jacob R. Goodin, Conrad Rapp, Mark Disanto, Frank Smith, Michael H. Stone Dec 2015

Analysis Of Changes In Muscle Architecture And Explosive Ability In Ncaa Division I Volleyball Players, Caleb D. Bazyler, Jacob R. Goodin, Conrad Rapp, Mark Disanto, Frank Smith, Michael H. Stone

ETSU Faculty Works

Abstract available in the 10th Annual Coaches and Sport Science College .


Herbs, Supplements And Athletes, Neilson Mathews Md Nov 2015

Herbs, Supplements And Athletes, Neilson Mathews Md

Department of Family Medicine

No abstract provided.


A Comparison Of Static Stretching Versus Combined Static And Ballistic Stretching In Active Knee Range Of Motion, Nathan R. Blackhurst, James C. Peterson, Valerie W. Herzog, Ericka P. Zimmerman Oct 2015

A Comparison Of Static Stretching Versus Combined Static And Ballistic Stretching In Active Knee Range Of Motion, Nathan R. Blackhurst, James C. Peterson, Valerie W. Herzog, Ericka P. Zimmerman

Internet Journal of Allied Health Sciences and Practice

Background: There is continued controversy related to flexibility gains from different stretching protocols and within single protocols. Stretching methods include static, ballistic, dynamic, and proprioceptive neuromuscular facilitation (PNF). A combination of stretching methods may be an improved way to increase active knee range of motion (ROM). This study evaluated a single program formulated with static and ballistic components. Objective: To compare active knee ROM following stretching programs which either included combined static and ballistic stretching (CSBS) or static stretching (SS) alone. It was hypothesized that CSBS would show a greater increase in active knee ROM than SS. Setting …


Programmed Physical Exertion In Recovery From Sports-Related Concussion: A Randomized Pilot Study, Arthur C. Maerlender, Wanda Rieman, Jonathan Lichtenstein, C. Condiracci Jan 2015

Programmed Physical Exertion In Recovery From Sports-Related Concussion: A Randomized Pilot Study, Arthur C. Maerlender, Wanda Rieman, Jonathan Lichtenstein, C. Condiracci

Department of Psychology: Faculty Publications

Although no data exist, general practice recommends only rest following concussion. This randomized clinical trial found that programmed physical exertion during recovery produced no significant differences in recovery time between groups of participants. However, high levels of exertion were deleterious. This study provides initial evidence that moderate physical activity is a safe replacement behavior during recovery.


2-Dimension Analysis Of Frontal Plane Projection Angle In Female Soccer Athletes, Kylee M. Tuchfarber Jan 2015

2-Dimension Analysis Of Frontal Plane Projection Angle In Female Soccer Athletes, Kylee M. Tuchfarber

Undergraduate Distinction Papers

Research has found a variety of mechanisms for ACL injuries. One mechanism that has been found is a decreased valgus control at the knee. One study found that that “the decreased active and passive controls of knee alignments may destabilize the knee and are purported to be measures related to increased risk of ACL injury in female athletes, as they mature” (Myer, Ford, Khoury, Succop, & Hewett, 2011, 248). The age of the subjects (12-16) is important because maturation may be a contributing cause of knee abduction moments (KAM). Three-dimensionalanalysis has been said to be the “gold standard” when analyzing …


Utilizing Weightlifting For Cycling Performance, Nicholas J. Fiolo, Christopher B. Taber, Caleb D. Bazyler, Cody T. Haun, Robert Duncan, Aaron M. Thomas, Michael W. Ramsey, Michael H. Stone Dec 2014

Utilizing Weightlifting For Cycling Performance, Nicholas J. Fiolo, Christopher B. Taber, Caleb D. Bazyler, Cody T. Haun, Robert Duncan, Aaron M. Thomas, Michael W. Ramsey, Michael H. Stone

ETSU Faculty Works

Abstract available in the 9th Annual Coaches and Sport Science College.


Insulin Resistance And Muscle Insulin Receptor Substrate-1 Serine Hyperphosphorylation, Charles A. Stuart, Mary E. A. Howell, Brian M. Cartwright, Melanie P. Mccurry, Michelle L. Lee, Michael W. Ramsey, Michael H. Stone Dec 2014

Insulin Resistance And Muscle Insulin Receptor Substrate-1 Serine Hyperphosphorylation, Charles A. Stuart, Mary E. A. Howell, Brian M. Cartwright, Melanie P. Mccurry, Michelle L. Lee, Michael W. Ramsey, Michael H. Stone

ETSU Faculty Works

Insulin resistance in metabolic syndrome subjects is profound in spite of muscle insulin receptor and insulin-responsive glucose transporter (GLUT4) expression being nearly normal. Insulin receptor tyrosine kinase phosphorylation of insulin receptor substrate-1 (IRS-1) at Tyr896 is a necessary step in insulin stimulation of translocation of GLUT4 to the cell surface. Serine phosphorylation of IRS-1 by some kinases diminishes insulin action in mice. We evaluated the phosphorylation status of muscle IRS-1 in 33 subjects with the metabolic syndrome and seventeen lean controls. Each underwent euglycemic insulin clamps and a thigh muscle biopsy before and after 8 weeks of either strength or …


Blood-Based Biomarkers For Traumatic Brain Injury: Evaluation Of Research Approaches, Available Methods And Potential Utility From The Clinician And Clinical Laboratory Perspectives, Frederick G. Strathmann, Stefanie Podlog (Nee Schulte), Kyle Goerl, David J. Petron Jul 2014

Blood-Based Biomarkers For Traumatic Brain Injury: Evaluation Of Research Approaches, Available Methods And Potential Utility From The Clinician And Clinical Laboratory Perspectives, Frederick G. Strathmann, Stefanie Podlog (Nee Schulte), Kyle Goerl, David J. Petron

Athletic Training Collection

Blood-based biomarkers for traumatic brain injury (TBI) have been investigated and proposed for decades, yet the current clinical assessment of TBI is largely based on clinical symptoms that can vary widely amongst patients, and have significant overlap with unrelated disease states. A careful review of current treatment guidelines for TBI further highlights the potential utility of a blood-based TBI biomarker panel in augmenting clinical decision making. Numerous expert reviews on blood-based TBI biomarkers have been published but a close look at the methods used and the astonishing paucity of validation and quality control data has not been undertaken from the …


Refeeding Syndrome In A Young Girl With Anorexia Nervosa., Om Parkash, Adil Ayub, Shahab Abid May 2014

Refeeding Syndrome In A Young Girl With Anorexia Nervosa., Om Parkash, Adil Ayub, Shahab Abid

Department of Medicine

We report the case of a 20-year-old anorexic girl (BMI=12.9), who was misdiagnosed the first time and developed severe electrolyte imbalances due to lack of awareness about refeeding syndrome. Few cases of RS have been reported in literature and protocols have been suggested for prevention and management of this syndrome, including the awareness of circumstances in which it is most likely to develop, refeeding slowly and building-up micronutrient content over several days. Improved awareness and understanding of refeeding syndrome along with a well-coordinated plan are vital in delivering safe and effective nutritional rehabilitation. We suggest a slow and gradual increase …


The Influence Of Partial And Full Thickness Tears On Infraspinatus Tendon Strain Patterns, Kayt E. Frisch, David Marcu, Geoffrey S. Baer, Darryl G. Thelen, Ray Vanderby Jan 2014

The Influence Of Partial And Full Thickness Tears On Infraspinatus Tendon Strain Patterns, Kayt E. Frisch, David Marcu, Geoffrey S. Baer, Darryl G. Thelen, Ray Vanderby

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Tears on the bursal and articular sides of the rotator cuff tendons are known to behave differently and strain is thought to play a role in this difference. This study investigates the effect of tear location on the changes in three strain measurements (grip-to-grip, insertion, and mid-substance tissue) in a sheep infraspinatus tendon model during axial loading. We introduced a 14mm wide defect near the insertion from either the articular or bursal side of the tendon to three depths (3 mm, 7mm & full) progressively. For each condition, tendons were sinusoidally stretched (4% at 0.5 Hz) while insertion and midsubstance …


Influence Of Tendon Tears On Ultrasound Echo Intensity In Response To Loading, Kayt E. Frisch, David Marcu, Geoffrey S. Baer, Darryl G. Thelen, Ray Vanderby Jan 2014

Influence Of Tendon Tears On Ultrasound Echo Intensity In Response To Loading, Kayt E. Frisch, David Marcu, Geoffrey S. Baer, Darryl G. Thelen, Ray Vanderby

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Acoustoelastic (AE) ultrasound image analysis is a promising non-invasive approach that uses load-dependent echo intensity changes to characterize stiffness of tendinous tissue. The purpose of this study was to investigate whether AE can detect localized changes in tendon stiffness due to partial and full-thickness tendon tears. Ovine infraspinatus tendons with different levels of damage (Intact, 33%, 66% and full thickness cuts initiated on the articular and bursal sides) were cyclically loaded in a mechanical testing system while cine ultrasound images were recorded. The load-induced changes in echo intensity on the bursal and articular side of the tendon were determined. Consistent …


Differences In Semg Between Normal Squats And Accentuated Eccentric Loaded Squats In Competitive Collegiate Weightlifters, Christopher Macdonalds, Kimitake Sato, Christian Carter, Hugh Lamont, William Sands, Michael H. Stone, Michael Israetel, Jeremy A. Gentles, Jason Cholewa, John Garner, Michael Ramsey, Guy Hornsby Jan 2014

Differences In Semg Between Normal Squats And Accentuated Eccentric Loaded Squats In Competitive Collegiate Weightlifters, Christopher Macdonalds, Kimitake Sato, Christian Carter, Hugh Lamont, William Sands, Michael H. Stone, Michael Israetel, Jeremy A. Gentles, Jason Cholewa, John Garner, Michael Ramsey, Guy Hornsby

ETSU Faculty Works

The purpose of the present work was to compare the effect of accentuated eccentric loaded (AEL) squats to normally loaded (NOR) squats on surface measured muscle activation (sEMG) in competitive weightlifters. Eight experienced, competitive weightlifters (six males, two females) completed both an AEL and NOR squat session (seven days apart), comprised of nine sets of squats, and was identical to their normal scheduled training. sEMG data from the vastus medialis (VM), vastus lateralis (VL), and biceps femoris (BF) was collected (at 1000Hz) during the entirety of the concentric (CON) phases of the AEL and NOR sessions. RMANOVAs (set x session-type) …


The Effects Of Strength Training On Isometric Force Production Symmetry In Recreationally Trained Males, Caleb D. Bazyler, Christopher A. Bailey, Chieh-Ying Chiang, Kimitake Sato, Michael H. Stone Jan 2014

The Effects Of Strength Training On Isometric Force Production Symmetry In Recreationally Trained Males, Caleb D. Bazyler, Christopher A. Bailey, Chieh-Ying Chiang, Kimitake Sato, Michael H. Stone

ETSU Faculty Works

Objectives: The purpose of this investigation was to determine what effect a bilateral strength training regimen has on isometric force production symmetry and if changes in force production symmetry can be accounted for by differences in pre-intervention strength levels. Design: Sixteen recreationally trained males (1-RM squat: 146.8 ± 23.0 kg.) were assigned to two groups for the 7-week training intervention: strong (S) and weak (W) based on pre-training squat isometric peak force allometrically scaled (IPFa) at 120° knee angle. Methods: Subjects completed a 7-week training intervention following a block-periodized model and were tested on measures of dynamic (1RM squat) and …


The Relationship Of Force Production Asymmetry And Performance In Athletes Of Different Strength Levels, Christopher A. Bailey, Caleb D. Bazyler, Chieh-Ying Chiang, Kimitake Sato, Michael H. Stone Jan 2014

The Relationship Of Force Production Asymmetry And Performance In Athletes Of Different Strength Levels, Christopher A. Bailey, Caleb D. Bazyler, Chieh-Ying Chiang, Kimitake Sato, Michael H. Stone

ETSU Faculty Works

The purpose of this study was to evaluate the relationship between force production asymmetry and performance of athletes with differing strength levels in males and females. Collegiate athletes (n=129) from various sports were ranked according to isometric mid-thigh pull peak force and the top (‘strong’) and bottom (‘weak’) 25% were used for analysis. Symmetry index (SI) scores were calculated and correlated with their respective force-time characteristics using bivariate correlations. For the weaker males, several negative moderate correlations were observed; however, no statistically significant correlations were observed for the females in either group. These findings indicate that force production asymmetry is …


The Effects Of Acute Post Exercise Consumption Of Two Cocoa-Based Beverages With Varying Flavanol Content On Indices Of Muscle Recovery Following Downhill Treadmill Running, Katelyn Peschek, Robert Pritchett, Ethan Bergman, Kelly Pritchett Dec 2013

The Effects Of Acute Post Exercise Consumption Of Two Cocoa-Based Beverages With Varying Flavanol Content On Indices Of Muscle Recovery Following Downhill Treadmill Running, Katelyn Peschek, Robert Pritchett, Ethan Bergman, Kelly Pritchett

All Faculty Scholarship for the College of the Sciences

Dietary flavanols have been associated with reduced oxidative stress, however their efficacy in promoting recovery after exercise induced muscle damage is unclear. This study examined the effectiveness of acute consumption of cocoa-flavanols on indices of muscle recovery including: subsequent exercise performance, creatine kinase, muscle tenderness, force, and self-perceived muscle soreness. Eight endurance-trained athletes (VO2max 64.4 ± 7.6 mL/kg/min) completed a downhill running protocol to induce muscle soreness, and 48-h later completed a 5-K (kilometer) time trial. Muscle recovery measurements were taken at PRE, 24 h-POST, 48 h-POST, and POST-5K. Participants consumed 1.0 g of carbohydrate per kilogram of body weight …


The Efficacy Of Partial Squats On Measures Of Strength And Explosiveness: An Exploratory Study, Caleb D. Bazyler, Kimitake Sato, Craig A. Wassinger, Hugh S. Lamont, Michael H. Stone Dec 2013

The Efficacy Of Partial Squats On Measures Of Strength And Explosiveness: An Exploratory Study, Caleb D. Bazyler, Kimitake Sato, Craig A. Wassinger, Hugh S. Lamont, Michael H. Stone

ETSU Faculty Works

Abstract available in the 8th Annual Coaches and Sport Science College.