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The Acute Effects of a Rotational Me...

Rogers Sullivan, Avery Pierce.

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The Acute Effects of a Rotational Medicine Ball Throw Exercise on Baseball Pitching Biomechanics.

Record Type:	Electronic resources : Monograph/item
Title/Author:	The Acute Effects of a Rotational Medicine Ball Throw Exercise on Baseball Pitching Biomechanics./
Author:	Rogers Sullivan, Avery Pierce.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	49 p.
Notes:	Source: Masters Abstracts International, Volume: 81-05.
Contained By:	Masters Abstracts International81-05.
Subject:	Recreation. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27630483
ISBN:	9781392463802

The Acute Effects of a Rotational Medicine Ball Throw Exercise on Baseball Pitching Biomechanics.
Rogers Sullivan, Avery Pierce.

The Acute Effects of a Rotational Medicine Ball Throw Exercise on Baseball Pitching Biomechanics. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 49 p.

Source: Masters Abstracts International, Volume: 81-05.

Thesis (M.S.E.S.)--The University of Texas at Arlington, 2019.

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

Throwing fast is a competitive advantage for baseball pitchers and doing so with proper mechanics can decrease injury risk. Pitching utilizes the kinetic chain, wherein momentum is generated by the proximal core segments of the body and transferred to the distal segments of the throwing shoulder and elbow to produce ball velocity. Medicine ball throws (MBT) have been used as a training method for rotational throwing and striking athletes to improve core strength and power. Rotational MBT are sport-specific for baseball pitching because of the similar explosive sequential muscle activation of the pelvis, torso, and arms. The purpose of this study was to investigate the effects of a side-rotational MBT exercise on pitching biomechanics and ball velocity when performed immediately prior to pitching as a method of post-activation potentiation (PAP). High school, college, and professional aged pitchers (n = 6, age 19.5 ± 3.6 years) were randomly assigned to MBT (n = 3, age 22.0 ± 3.5 years) and control (CON) groups (n = 3, age 17.0 ± 1.0 years). Both groups threw five pre-trial and five post-trial maximal effort fastballs, with the MBT group performing one set of six side-rotational MBT at maximum effort in between the pre and post-trials. All pitching trials were recorded by a three-dimensional motion capture system at 240 Hz, from which five temporal, four kinematic, and three kinetic variables were calculated. A 2 x 2 mixed ANOVA for each dependent variable was used for comparisons between and within groups. There were significant interactions between groups and time for peak trunk rotational velocity (p = .049), peak elbow extension velocity (p = .014), and maximum external rotation torque (p = .042). These results warrant further research into MBT as a method for warming up and eliciting a PAP response for pitching.

ISBN: 9781392463802Subjects--Topical Terms:

535376
Recreation.
Subjects--Index Terms:

Baseball

The Acute Effects of a Rotational Medicine Ball Throw Exercise on Baseball Pitching Biomechanics.
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520 $a Throwing fast is a competitive advantage for baseball pitchers and doing so with proper mechanics can decrease injury risk. Pitching utilizes the kinetic chain, wherein momentum is generated by the proximal core segments of the body and transferred to the distal segments of the throwing shoulder and elbow to produce ball velocity. Medicine ball throws (MBT) have been used as a training method for rotational throwing and striking athletes to improve core strength and power. Rotational MBT are sport-specific for baseball pitching because of the similar explosive sequential muscle activation of the pelvis, torso, and arms. The purpose of this study was to investigate the effects of a side-rotational MBT exercise on pitching biomechanics and ball velocity when performed immediately prior to pitching as a method of post-activation potentiation (PAP). High school, college, and professional aged pitchers (n = 6, age 19.5 ± 3.6 years) were randomly assigned to MBT (n = 3, age 22.0 ± 3.5 years) and control (CON) groups (n = 3, age 17.0 ± 1.0 years). Both groups threw five pre-trial and five post-trial maximal effort fastballs, with the MBT group performing one set of six side-rotational MBT at maximum effort in between the pre and post-trials. All pitching trials were recorded by a three-dimensional motion capture system at 240 Hz, from which five temporal, four kinematic, and three kinetic variables were calculated. A 2 x 2 mixed ANOVA for each dependent variable was used for comparisons between and within groups. There were significant interactions between groups and time for peak trunk rotational velocity (p = .049), peak elbow extension velocity (p = .014), and maximum external rotation torque (p = .042). These results warrant further research into MBT as a method for warming up and eliciting a PAP response for pitching.
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