Medicine and Health Sciences Commons^™

Oxygen Consumption In Highly Skilled Baseball Pitchers, Jesse Clingman

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to describe the physiological demands of highly skilled baseball pitchers during pitching, along with pitch metrics. Three junior college and three professional (n = 6) baseball pitchers participated in this study. Participants completed a graded exercise test (GXT) to volitional exhaustion to determine maximal oxygen consumption (VO2 max) and estimated body fat percentage, height, and body mass were measured on day one of testing. Next, participants faced live batters on a baseball field while wearing a portable metabolic analyzer (Cosmed K5) to measure respiratory gases including oxygen consumption (VO2) and carbon dioxide produced (VCO2) …

Acute Effects Of Post-Activation Potentiation On Increasing Bat Velocity In Competitive Baseball Players: A Case Series, Phillipp Yu, John Macdonald, Katrina Myers

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose/Hypothesis: Hitting a baseball is widely considered as one of the most difficult motor tasks in sports. It requires quick decision-making and coordinated activation of key muscles to produce a precise and rapid swing. Higher bat velocity has been shown to be associated with offensive performance of baseball players, as greater bat velocities permit more time to be spent analyzing a pitch and can lead to greater outcomes when a ball is hit in play. Baseball players and coaches have traditionally sought on-deck routines to temporarily enhance bat velocity before an at-bat, primarily swinging a weight bat. However, this method …

A Comparison Of Peak Ground Reaction Forces Of Pitches From The Stretch And Windup, Richard D. Edwards

MSU Graduate Theses

Ground reaction forces can help coaches and players understand the lower extremity biomechanics of pitching in baseball. Research has told us that there are repeatable characteristics of ground reaction forces that pitchers produce during a pitch. This study examines the differences in peak ground reaction forces produced from pitching from the stretch versus pitching from the wind-up. Five variables were recorded for each pitch from the push-off leg and the landing leg. Landing forces were then compared to landing forces of the other pitching style and the same comparison was made for the push-off leg. This was achieved by altering …

Side-To-Differences Of Medial Elbow Anatomy Adaptations In Youth Throwing Athletes, Rudolph Matthew Morrow

Theses, Dissertations and Capstones

Background: Injuries to the medial elbow are common in overhead sports, with the most common occurring at the medial/ulnar collateral ligament (UCL). Injury to the UCL is associated with elbow joint laxity which tends to develop over time in athletes who place their elbows under chronic valgus forces like those present during throwing. ^{27, 37} This instability is well documented in professional, collegiate, and high school athletes.

Purpose: The purpose of this study was to investigate the medial elbow joint width and common flexor tendon thickness in the arms of youth baseball players. The hypotheses were (1) the …

Development Of A Field Expedient Screening Tool For The Coach To Identify Musculoskeletal Risk Factors In Baseball Players, Kyle Andrew Matsel

Theses and Dissertations--Rehabilitation Sciences

Identification of musculoskeletal (MSK) injury risk factors in baseball players can be challenging particularly for youth and high school coaches. Many baseball coaches lack a sports medicine and/or strength and conditioning staff to assist with injury prevention initiatives. Given the extensive responsibilities in managing the team and preparing the players for athletic competition, little time remains to focus on injury prevention and arm care programs. Furthermore, assessment, diagnosis, and management of MSK impairments is outside the scope of practice and expertise of baseball coaches. However, educating and empowering the coach to efficiently screen their players for potentially injury producing MSK …

Will Pitch Velocity Remain Consistent Throughout A Competitive Baseball Season Following Blood Flow Restriction: An Observational Study, Mackenzie Marie Evans

Graduate Theses, Dissertations, and Problem Reports

Context: Blood flow restriction (BFR) has previously been used in a rehabilitation setting to decrease the external load applied to post-surgical patients and those with chronic debilitating conditions. BFR in a performance context has been explored minimally, particularly as it applies to baseball pitching over time. Objective: The purpose of this study was to retrospectively investigate the trend in throwing velocity of fastballs with BFR implementation over one competitive season. Design: This study was a retrospective longitudinal design on pitching velocity of fastballs throughout a competitive season. Setting: The data collection and analysis was completed at …

Ulnar Collateral Ligament Reconstruction With Traditional Docking Compared To Novel Surgical Techniques, Kayley D. Guy, Brendon P. Mcdermott, Kaitlin Gallagher, Tyrone Washington

Health, Human Performance and Recreation Undergraduate Honors Theses

Background: Ulnar Collateral Ligament Reconstruction (UCLR) is a surgical procedure on one of the main ligaments that provides normal stability for the elbow joint against excessive valgus stress. Damage to this ligament is common in athletes performing overhead throwing activities, primarily baseball players, due to excessive valgus stress during the throwing motion. The most common form of treatment for this type of injury is reconstructive surgery of the ligament, especially if athletes wish to return to sport participation. This type of surgery is extremely invasive and requires extensive post-operative rehabilitation in order to facilitate return to play. To date, many …

Longitudinal Descriptive Profile Of Collegiate Pitchers Participating In A Summer Baseball League, Isabelle Leslie Gillis

Theses and Dissertations--Kinesiology and Health Promotion

The purpose of this study was to provide a longitudinal profile of pitching performance in a cohort of pitchers over two collegiate seasons and a summer league. Thus, this study utilized a longitudinal design to evaluate the impact of summer league participation on subsequent collegiate regular season pitching performance. Specifically, the performance of a cohort of Division 1 collegiate baseball pitchers during the 2018 Spring collegiate season, 2018 Summer League season, and the 2019 Spring collegiate season was evaluated and stratified by pitcher designation, arm dominance, and academic status. Analyses of variance were used to identify main and interaction effects …

The Effect Of Choice On Throwing Speed In Baseball Players, Brooke Andrea Boyd

UNLV Theses, Dissertations, Professional Papers, and Capstones

Incidental choices have been identified as one way to support the need for autonomy. The purpose of this study was to determine if choice in type and color of wrist tape would influence throwing speed in baseball players. Participants were experienced male baseball players from a local high school. All participants performed 10 throws under choice and no-choice conditions. Throwing speed did not differ as a function of choice versus no choice. Possible explanations and limitations of the present study are discussed.

The Effects Of Surface Pace In Baseball, Jason Farlow

Senior Theses

A baseball travels across different surfaces at different paces. The goal of this experiment is to find a percentage difference in speeds the ball will reflect off a given surface. The energy lost on the turf surface was far more significant than on dirt surface as the turf lost an average of 26% of its energy as compared to just 16% of the energy on dirt. In the Northwest conference, teams play on four turf-based infields and five dirt-based infields. The results of this study suggest that kinetic friction forces are more significant in reducing ball rebound speed than in …

Examining Upper Extremity Injuries In Male Baseball Players Between The Ages Of 14 To 22 Years Old, James T. Yancy

Graduate Student Theses, Dissertations, & Professional Papers

Yancy, James T. (J.T.), MAT., May 2018 AthleticTraining

Examining Upper Extremity Injuries In Male Baseball Players Between The Ages Of 14 To 22 Years Old

Chairperson: Melanie McGrath

The number of upper extremity injuries is increasing in advanced baseball (14 to 22 years old) at an alarming rate. The length of seasons, multiple leagues and the velocity of throwing in overhead sports are the most common causes of elbow and shoulder injuries. In addition, biomechanical variables also influence the risk of injury. Any alteration in range of motion (ROM) directly impacts the biomechanics of overhead activities, such as pitching or …

The Westerville Naturals Baseball Team & Otterbein Health And Sport Sciences, Student Project, Kenleigh J. Immel, Jason Combs, Adam Collier, Taylor Lindsey, Christian Brett

Senior Year Experience Student Projects

We had the privilege to give back to our community in the form of manual labor. The Westerville Naturals baseball team needed a hand moving gravel in order to store a shed behind their field. The team provided a gator to transport the gravel from the parking lot to the field. The objective was to scoop shovels full of gravel into the back of the gator. We took multiple trips to load the five tons of gravel and transport it to the new location. Once moved, the sheds needed a facelift so it was decided to paint the sheds. We …

Examining The Relationship Between Throwing Injuries Sustained In Adolescent Baseball Players And Use Of An Injury Prevention Smartphone Application "Throw Like A Pro", David S. Grove

Graduate Student Theses, Dissertations, & Professional Papers

Objective: To describe the use rate of the injury prevention smartphone app “Throw Like a Pro” (TLP), and determine the relationship between use of the app and throwing injuries in adolescent baseball players.

Design and Setting: The smartphone application TLP was distributed to adolescent baseball players. Instruction was given on correct use of the application. Stretches, exercises, and application features were demonstrated to subjects. Data on use and injuries was compiled through self-reported surveys.

Subjects: A convenience sample of adolescent baseball players (n=20) aged 13-18 from the Babe Ruth Little League organization in Missoula, Montana were selected.

Measurements: A modified …

Humeral Retrotorsion In Developing Children And Its Relationship To Throwing Sports, Elliot M. Greenberg

Department of Physical Therapy Student Theses, Dissertations and Capstones

Background: Baseball players exhibit a more posteriorly oriented humeral head or humeral retrotorsion (HRT) in the dominant arm, likely representing an adaptive response to the stress of throwing. This adaptation is thought to occur while skeletally immature, however there is limited research detailing how throwing while young influences the development HRT. In addition, it is currently unclear how this changing osseous orientation influences shoulder motion within young athletes. Purpose: To determine the influence of throwing and age on the development of asymmetry in HRT and shoulder range of motion (ROM); and analyze the relationship between HRT and ROM. Study Design: …

Little League Baseball World Series, Courtney C. Moriarty

Master of Arts in Sport Management

This research reflected an examination of the history and current trends of the Little League Baseball World Series and its parent organization Little League. The tournament, held in South Williamsport, Pennsylvania each August draws hundreds of thousands of fans from across the globe, and creates a multi-million dollar revenue stream. Little League is one of a handful of international non-profit entities, which introduces a unique set of business management techniques. Several of these facets were explored, including financial data, marketing initiatives, employee, and risk management as well as ethical practices in regards to the League as a whole, and more …

Association Between Pelvic Motion And Hand Velocity In College-Aged Baseball Pitchers, William Temlin Horlbeck

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Previous research suggests that pelvic motion is closely related to pitching performance over the course of a season. Few studies have examined pelvic motion and its relationship to an acute pitching variable. Therefore, the purpose of this study was to investigate the relationship between pelvic motion and hand velocity in college-aged pitchers. Nine healthy club baseball team pitchers performed two tests: A pelvic motion test, and a hand velocity test during a pitch. The pelvic motion test required participants to lift their kicking leg 10 cm off the ground, then hold that position for two seconds before returning to a …

The Creation And Validation Of A Youth Fundamental Hitting Scale: The Assessment Of Youth Baseball And Softball Hitting Fundamentals And The Perceived Psychological Barriers To Hitting A Pitched Ball, Andrew Walsh

Theses: Doctorates and Masters

The primary purpose of the thesis was to create a hitting scale for youth players that assess the fundamentals of a baseball swing. Secondly, the purpose of this thesis was to determine the interactions between the changes in anxiety, perceived competence and fear variables have with actual hitting competence over a four week sport specific training program.

Correlation Of Shoulder And Elbow Kinetics With Ball Velocity In College Baseball Pitchers, Eric Post

Theses and Dissertations

Specific injuries at the elbow and glenohumeral joints have been linked to several kinetic variables that occur throughout the throwing motion. Ulnar collateral ligament (UCL) sprains have been linked to excessive elbow valgus and shoulder external rotation torques occurring during the late-cocking phase of throwing. Shoulder external rotation torque during the late arm-cocking phase and shoulder distraction forces during the deceleration phase contribute to tears of the labrum. Additionally, it is believed that the peak distraction force generated during the arm deceleration phase also contributes to SLAP tears and rotator cuff pathologies. Very little research has been done to directly …

“Learning The Hard Way”: An Examination Of Acculturative Support For Latin-American Baseball Players In The South Atlantic League, Lauren Melanie Osmer

Masters Theses

Latin-Americans have become major contributors in Major League Baseball, but face many challenges acculturating to living and playing in the United States. This research examined the acculturative support provided to Latin-American players by teams in the South Atlantic League of Minor League Baseball and whether or not people involved think that support was effective. Semi-structured interviews were conducted with front-office members and Latin-American former players, and transcriptions were analyzed for emerging themes using QDA Miner content analysis software. Three main themes emerged from the interviews: the language barrier, interaction between Latin-American and Anglo-American teammates, and the youth of Latin-American prospects. …

Glenohumeral Internal Rotation Deficit And Ulnar Collateral Ligament Injury In Baseball Pitchers, Cristina C. Nistler

Culminating Projects in Kinesiology

No abstract provided.

Biomechanical Analysis Of The Upper Extremity During Multiple Softball Pitches, Amy Bookkless, Katelyn Bottelberghe, Tara Petersen

Physical Therapy Scholarly Projects

Purpose: There are a large number of fast pitch softball participants including high school, college, Olympic, professional and recreational leagues. While a large number of studies describe the baseball pitch, there is a shortage of studies describing the windmill softball pitch. Therefore, the purpose of this study is to utilize electromyography (EMG) and motion analysis to determine the biomechanical factors of muscle recruitment, shoulder and elbow range of motion and joint velocities during the windmill softball pitch.

Subjects: Five Division II women's fast pitch softball pitchers, mean age 19 years, were included in the study. The player's pitching experience averaged …

A Comparison Of The Effects On Throwing Velocity Of Straight Plane Versus Diagonal Plane Shoulder Exercises On 18-30 Year Old Non-Athletes, Jason Allred, Kevin O'Brien, Peter Tran

Physical Therapy Scholarly Projects

The purpose of this study was to examine changes in throwing velocity exhibited by subjects placed in a straight-line resistance-training group, a proprioceptive neuromuscular facilitation (PNF) resistance-training group, and a control group in order to compare benefits between training programs. Subjects were comprised of 42 college students between the ages of 18 and 30. The subjects were placed in one of the three experimental groups (straight-line resistance-training, PNF resistance training, and control) using Theraband™ elastic tubing. Each subject's overhand throwing velocity was measured on two separate occasions separated by 8-weeks of training. Rate of perceived exertion (RPE) was used to …

Etiology And Treatment Of Rotator Cuff Injuries In Baseball Pitchers, Jeff Breyen

Physical Therapy Scholarly Projects

Rotator cuff injury is one of the most common shoulder problems seen in the baseball pitchers today. The rotator cuff is the primary dynamic stabilizer of the glenohumeral joint and is placed under significant stress during each pitch the player delivers to the plate. Rotator cuff injury and dysfunction in the baseball pitcher may be classified based on etiology as primary impingement, primary tensile overload, instability, and macrotrauma.

The shoulder is a complex joint and proper treatment relies on the physical therapist's knowledge of the anatomy and function of all of the involved structures about the shoulder. The therapist must …

Literature Review And Critique Of Shoulder Training Programs For Increasing Throwing Velocity Of The Baseball Pitcher, Ronald K. Mimaki

Physical Therapy Scholarly Projects

The purpose of this independent study is a literature review of the principles of training and a critique of the shoulder strength training programs for increasing the throwing velocity of the baseball pitcher. In addition, a sport specific movement analysis, based on biomechanics, physiology and kinesiology of the baseball overhand pitch will be examined. The critique will be based on the principles of training reviewed earlier and a sport specific movement analysis. Finally, a proposal of a potential training program and possible topics for research will be discussed.