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Kinematic and Kinetic Differences between Medicine Ball Rotational Exercises and the Throwing Motion among Collegiate Baseball Players.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Kinematic and Kinetic Differences between Medicine Ball Rotational Exercises and the Throwing Motion among Collegiate Baseball Players./
作者:	Mylott, Joseph Anthony.
面頁冊數:	1 online resource (105 pages)
附註:	Source: Masters Abstracts International, Volume: 83-12.
Contained By:	Masters Abstracts International83-12.
標題:	Biomechanics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29169505click for full text (PQDT)
ISBN:	9798438785002

Kinematic and Kinetic Differences between Medicine Ball Rotational Exercises and the Throwing Motion among Collegiate Baseball Players.
Mylott, Joseph Anthony.

Kinematic and Kinetic Differences between Medicine Ball Rotational Exercises and the Throwing Motion among Collegiate Baseball Players. - 1 online resource (105 pages)

Source: Masters Abstracts International, Volume: 83-12.

Thesis (M.S.)--Wake Forest University, 2022.

Includes bibliographical references

The purpose of this study was to compare the kinematic and kinetic differences between different strength and conditioning exercises and baseball throws. Medicine ball exercises and countermovement jump (CMJ) assessments are common within training programs for rotational sports, including baseball. Three-dimensional (3D) biomechanical analyses were performed on collegiate baseball players (n=35) during rotational medicine ball exercises and maximum effort baseball throws. Potential differences between force plate variables from the jump assessments and kinetics during throwing were assessed using univariate regressions with 95% confidence intervals. Kinematic and kinetic variables between rotational medicine ball exercises and baseball throwing were investigated at discrete time points and for continuous time data. The discrete metrics were compared using one-way analysis of variance (ANOVA) and Tukey tests. The continuous time signals were assessed using statistical parametric mapping (SPM), specifically with ANOVA and two-way T-tests.No relationships were found between the CMJ assessment variables and kinetic values during throwing, suggesting a lack of specificity and transfer between the activities. The athletes generated less peak lead leg GRF during medicine ball exercises compared to throws (32% and 62% for push and chop trials, respectively) (p<0.001). Many other kinematic and kinetic variables of interest were significantly different between the different trial types of medicine ball exercises and throws. Chop trials had the most lead knee flexion angle at FP (p=0.021) and at MER (p<0.001). Throw trials had the greatest lead knee flexion angle at BR (p<0.001). Push trials had the fastest lead knee flexion angular velocity at MER (p<0.001) and at BR (p<0.001). Throw trials had the longest stride lengths (p<0.001). Position groups were significantly different for lead leg GRF max (p=0.020) and stride length (p=0.018). Left-handed throwers had significantly greater lead leg GRF max values (p=0.040) than their right-handed counterparts. The time continuous comparisons showed significant differences between the medicine ball exercises and throws as well. The drive leg GRF values peaked around the same values at different times between PKH and FP (p<0.001), Throw trials had the greatest lead leg GRF with chop trials generating the least (p<0.001). Chop trials began with the greatest lead knee flexion angle at FP and throw trials ended with the most at BR (p=0.023). These differences between discrete and continuous time variables suggest the medicine ball exercises used in this study can be used to train baseball players. Each medicine ball rotational exercise showed practical training applications for athletes. These applications are dependent upon the targeted set of kinetic or kinematic deficiencies in the throwing motion.

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

Mode of access: World Wide Web

ISBN: 9798438785002Subjects--Topical Terms:

548685
Biomechanics.
Subjects--Index Terms:

BaseballIndex Terms--Genre/Form:

542853
Electronic books.

Kinematic and Kinetic Differences between Medicine Ball Rotational Exercises and the Throwing Motion among Collegiate Baseball Players.
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520 $a The purpose of this study was to compare the kinematic and kinetic differences between different strength and conditioning exercises and baseball throws. Medicine ball exercises and countermovement jump (CMJ) assessments are common within training programs for rotational sports, including baseball. Three-dimensional (3D) biomechanical analyses were performed on collegiate baseball players (n=35) during rotational medicine ball exercises and maximum effort baseball throws. Potential differences between force plate variables from the jump assessments and kinetics during throwing were assessed using univariate regressions with 95% confidence intervals. Kinematic and kinetic variables between rotational medicine ball exercises and baseball throwing were investigated at discrete time points and for continuous time data. The discrete metrics were compared using one-way analysis of variance (ANOVA) and Tukey tests. The continuous time signals were assessed using statistical parametric mapping (SPM), specifically with ANOVA and two-way T-tests.No relationships were found between the CMJ assessment variables and kinetic values during throwing, suggesting a lack of specificity and transfer between the activities. The athletes generated less peak lead leg GRF during medicine ball exercises compared to throws (32% and 62% for push and chop trials, respectively) (p<0.001). Many other kinematic and kinetic variables of interest were significantly different between the different trial types of medicine ball exercises and throws. Chop trials had the most lead knee flexion angle at FP (p=0.021) and at MER (p<0.001). Throw trials had the greatest lead knee flexion angle at BR (p<0.001). Push trials had the fastest lead knee flexion angular velocity at MER (p<0.001) and at BR (p<0.001). Throw trials had the longest stride lengths (p<0.001). Position groups were significantly different for lead leg GRF max (p=0.020) and stride length (p=0.018). Left-handed throwers had significantly greater lead leg GRF max values (p=0.040) than their right-handed counterparts. The time continuous comparisons showed significant differences between the medicine ball exercises and throws as well. The drive leg GRF values peaked around the same values at different times between PKH and FP (p<0.001), Throw trials had the greatest lead leg GRF with chop trials generating the least (p<0.001). Chop trials began with the greatest lead knee flexion angle at FP and throw trials ended with the most at BR (p=0.023). These differences between discrete and continuous time variables suggest the medicine ball exercises used in this study can be used to train baseball players. Each medicine ball rotational exercise showed practical training applications for athletes. These applications are dependent upon the targeted set of kinetic or kinematic deficiencies in the throwing motion.
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653 $a Strength
653 $a Conditioning
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