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Characterization of Pitching Kinematics and Risk Management Factors for Baseball Players with Shoulder Injuries.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Characterization of Pitching Kinematics and Risk Management Factors for Baseball Players with Shoulder Injuries./
作者:	Walsh, McKenzie R.
面頁冊數:	1 online resource (64 pages)
附註:	Source: Masters Abstracts International, Volume: 84-06.
Contained By:	Masters Abstracts International84-06.
標題:	Biomechanics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29994509click for full text (PQDT)
ISBN:	9798363505423

Characterization of Pitching Kinematics and Risk Management Factors for Baseball Players with Shoulder Injuries.
Walsh, McKenzie R.

Characterization of Pitching Kinematics and Risk Management Factors for Baseball Players with Shoulder Injuries. - 1 online resource (64 pages)

Source: Masters Abstracts International, Volume: 84-06.

Thesis (M.S.)--Arizona State University, 2022.

Includes bibliographical references

Shoulder injuries are common in major league baseball (MLB) players due to the explosive and unnatural throwing motion. The goal of the thesis was to provide quantitative information about factors that influence pitching outcomes, to better understand risk management of rotator cuff tears/injuries. Typically, shoulder injuries are due to the stress placed on the glenohumeral joint. While the kinetic chain and joint muscular forces produce the explosive overhead throw. There's a vast range when it comes to shoulder injuries for pitchers. Rotator cuff injuries are common, and multiple factors contribute to either impingement/strains, tendinitis, or tears.The purpose of this study was to assess shoulder injuries sustained by MLB pitchers between 2015-2021, to identify changes between performance metrics, collected from a publicly available database for differences between pre and post injury. Selected factors of interest are: playing years in the league, injury history, average pitch types thrown for both preinjury and postinjury, release speed, release position in the x, y, and z directions, horizontal and vertical movement, horizontal and vertical positions of the ball when it crosses home plate (plate_x and plate_z), resultant velocities and accelerations, release spin rate, release extension, spin axis and return-to-sport determined by length of time spent on the injured list (IL) for more than 100 days or less than 100 days. Resultant velocities and accelerations were calculated using the provided metrics for velocity and acceleration in the x, y, z global dimensions. Resultant velocities were significant only for off-speed pitches (P= 0.053). Multiple linear regression analysis was preformed to relate ball flight kinematics (displacement, ball velocity, and acceleration), angular kinematics (spin rate and spin axis) per each pitch bin (e.g., fastballs, breaking balls, and off-speed pitches) to relate performance metrics found prior to injury and those after the sustained injury. Ball speed in miles per hour presented significance in the off-speed pitches, though spin rate was only significant for breaking ball pitches. Two distinct spin axis orientations were significant: breaking balls and off-speed pitches. The horizontal release position was significant for both fastballs and breaking balls than in the vertical release position which was significant for all pitch bins. From the analysis of variance, inferences were made to additional factors of interest that are out of the scope such as, kinematic sequence velocities and ground reaction forces.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798363505423Subjects--Topical Terms:

548685
Biomechanics.
Subjects--Index Terms:

BaseballIndex Terms--Genre/Form:

542853
Electronic books.

Characterization of Pitching Kinematics and Risk Management Factors for Baseball Players with Shoulder Injuries.
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520 $a Shoulder injuries are common in major league baseball (MLB) players due to the explosive and unnatural throwing motion. The goal of the thesis was to provide quantitative information about factors that influence pitching outcomes, to better understand risk management of rotator cuff tears/injuries. Typically, shoulder injuries are due to the stress placed on the glenohumeral joint. While the kinetic chain and joint muscular forces produce the explosive overhead throw. There's a vast range when it comes to shoulder injuries for pitchers. Rotator cuff injuries are common, and multiple factors contribute to either impingement/strains, tendinitis, or tears.The purpose of this study was to assess shoulder injuries sustained by MLB pitchers between 2015-2021, to identify changes between performance metrics, collected from a publicly available database for differences between pre and post injury. Selected factors of interest are: playing years in the league, injury history, average pitch types thrown for both preinjury and postinjury, release speed, release position in the x, y, and z directions, horizontal and vertical movement, horizontal and vertical positions of the ball when it crosses home plate (plate_x and plate_z), resultant velocities and accelerations, release spin rate, release extension, spin axis and return-to-sport determined by length of time spent on the injured list (IL) for more than 100 days or less than 100 days. Resultant velocities and accelerations were calculated using the provided metrics for velocity and acceleration in the x, y, z global dimensions. Resultant velocities were significant only for off-speed pitches (P= 0.053). Multiple linear regression analysis was preformed to relate ball flight kinematics (displacement, ball velocity, and acceleration), angular kinematics (spin rate and spin axis) per each pitch bin (e.g., fastballs, breaking balls, and off-speed pitches) to relate performance metrics found prior to injury and those after the sustained injury. Ball speed in miles per hour presented significance in the off-speed pitches, though spin rate was only significant for breaking ball pitches. Two distinct spin axis orientations were significant: breaking balls and off-speed pitches. The horizontal release position was significant for both fastballs and breaking balls than in the vertical release position which was significant for all pitch bins. From the analysis of variance, inferences were made to additional factors of interest that are out of the scope such as, kinematic sequence velocities and ground reaction forces.
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650 4 $a Kinesiology. $3 517627
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653 $a Baseball
653 $a Pitching kinematics
653 $a Risk management
653 $a Shoulder injuries
653 $a Upper extremity injuries
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710 2 $a Arizona State University. $b Exercise and Wellness. $3 2103403
773 0 $t Masters Abstracts International $g 84-06.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29994509 $z click for full text (PQDT)