東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Linked to FindBook

Google Book

Amazon

博客來

Investigation of Sport Specialization History and Workload Management on Pitching Biomechanics in Collegiate Baseball Pitchers.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Investigation of Sport Specialization History and Workload Management on Pitching Biomechanics in Collegiate Baseball Pitchers./
Author:	Hamer, Tyler J.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
Description:	124 p.
Notes:	Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
Contained By:	Dissertations Abstracts International83-12B.
Subject:	Biomechanics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29166922
ISBN:	9798834000198

Investigation of Sport Specialization History and Workload Management on Pitching Biomechanics in Collegiate Baseball Pitchers.
Hamer, Tyler J.

Investigation of Sport Specialization History and Workload Management on Pitching Biomechanics in Collegiate Baseball Pitchers. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 124 p.

Source: Dissertations Abstracts International, Volume: 83-12, Section: B.

Thesis (Ph.D.)--University of Nebraska at Omaha, 2022.

This item must not be sold to any third party vendors.

Injuries to the throwing shoulder and elbow have become increasingly prominent in baseball athletes. Extrinsic risk factors such as workload volume and intensity, sport-specific biomechanics, and training environment have been theorized to impact injury rates in baseball pitchers (Post et al., 2020; Jayanthi et al., 2015). However, previous research is limited regarding these risk factors in collegiate pitchers. The goals of this dissertation were to enhance our understanding of how sport specialization, workload, and change over time affect pitching biomechanics in collegiate and high school pitchers.For the first two aims, a data collection instrument determined the magnitude of sport specialization in collegiate and high school baseball pitchers. Comparisons between specialization levels were made to determine if differences existed for collegiate and high school pitchers. Next, pitching biomechanics evaluations were conducted before (January) and after (August) the NCAA spring season to investigate the relationship of pitching biomechanics to competitive workload variables. Lastly, we tracked how pitching biomechanics change through four pitching evaluations spanning one year.We found that high-, moderate-, and low-level specialized collegiate pitchers threw with similar pitching biomechanics across groups. High school pitchers also demonstrated similar pitching biomechanics across groups, yet high-level specialized pitchers threw significantly faster (High: 36.4 ± 2.26 m/s; Low: 32.05 ± 1.92 m/s) and had significantly higher BMI (High: 24.18 ± 2.74; Low: 21.29 ± 1.87) than low-level specialized pitchers. Results also found shoulder abduction at stride foot contact (SFC), shoulder rotation at SFC, shoulder abduction at maximum shoulder external rotation, and maximum elbow valgus torque had strong negative correlations to workload variables. Shoulder Abduction at SFC significantly increased from pre- to post-season while Shoulder Rotation at MER significantly decreased. Finally, collegiate pitchers were able to improve, or keep within a target range, their pitching biomechanics from an initial evaluation to a fourth evaluation roughly one year later. By identifying how sport specialization, workload, and time interact with pitching biomechanics, clinicians may be able to develop specific rehabilitation strategies to best address a specific pitcher's needs.

ISBN: 9798834000198Subjects--Topical Terms:

548685
Biomechanics.
Subjects--Index Terms:

College baseball

Investigation of Sport Specialization History and Workload Management on Pitching Biomechanics in Collegiate Baseball Pitchers.
LDR:03720nmm a2200421 4500 001 2351483
005 20221107085656.5
008 241004s2022 ||||||||||||||||| ||eng d
020 $a 9798834000198
035 $a (MiAaPQ)AAI29166922
035 $a AAI29166922
040 $a MiAaPQ $c MiAaPQ
100 1 $a Hamer, Tyler J. $3 3691057
245 1 0 $a Investigation of Sport Specialization History and Workload Management on Pitching Biomechanics in Collegiate Baseball Pitchers.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2022
300 $a 124 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
500 $a Advisor: Knarr, Brian A.
502 $a Thesis (Ph.D.)--University of Nebraska at Omaha, 2022.
506 $a This item must not be sold to any third party vendors.
520 $a Injuries to the throwing shoulder and elbow have become increasingly prominent in baseball athletes. Extrinsic risk factors such as workload volume and intensity, sport-specific biomechanics, and training environment have been theorized to impact injury rates in baseball pitchers (Post et al., 2020; Jayanthi et al., 2015). However, previous research is limited regarding these risk factors in collegiate pitchers. The goals of this dissertation were to enhance our understanding of how sport specialization, workload, and change over time affect pitching biomechanics in collegiate and high school pitchers.For the first two aims, a data collection instrument determined the magnitude of sport specialization in collegiate and high school baseball pitchers. Comparisons between specialization levels were made to determine if differences existed for collegiate and high school pitchers. Next, pitching biomechanics evaluations were conducted before (January) and after (August) the NCAA spring season to investigate the relationship of pitching biomechanics to competitive workload variables. Lastly, we tracked how pitching biomechanics change through four pitching evaluations spanning one year.We found that high-, moderate-, and low-level specialized collegiate pitchers threw with similar pitching biomechanics across groups. High school pitchers also demonstrated similar pitching biomechanics across groups, yet high-level specialized pitchers threw significantly faster (High: 36.4 ± 2.26 m/s; Low: 32.05 ± 1.92 m/s) and had significantly higher BMI (High: 24.18 ± 2.74; Low: 21.29 ± 1.87) than low-level specialized pitchers. Results also found shoulder abduction at stride foot contact (SFC), shoulder rotation at SFC, shoulder abduction at maximum shoulder external rotation, and maximum elbow valgus torque had strong negative correlations to workload variables. Shoulder Abduction at SFC significantly increased from pre- to post-season while Shoulder Rotation at MER significantly decreased. Finally, collegiate pitchers were able to improve, or keep within a target range, their pitching biomechanics from an initial evaluation to a fourth evaluation roughly one year later. By identifying how sport specialization, workload, and time interact with pitching biomechanics, clinicians may be able to develop specific rehabilitation strategies to best address a specific pitcher's needs.
590 $a School code: 1060.
650 4 $a Biomechanics. $3 548685
650 4 $a Physiology. $3 518431
650 4 $a Higher education. $3 641065
650 4 $a Sports management. $3 3423935
650 4 $a Kinesiology. $3 517627
653 $a College baseball
653 $a Kinematics
653 $a Kinetics
653 $a Pitching
653 $a Workload management
653 $a Sport specialization
653 $a Exercise Science
690 $a 0648
690 $a 0575
690 $a 0745
690 $a 0430
690 $a 0719
710 2 $a University of Nebraska at Omaha. $b Health, Physical Education and Recreation. $3 1037390
773 0 $t Dissertations Abstracts International $g 83-12B.
790 $a 1060
791 $a Ph.D.
792 $a 2022
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29166922