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Prediction of Vertical Stiffness in College-Aged Males Using Modified Reactive Strength Index During Jumping.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Prediction of Vertical Stiffness in College-Aged Males Using Modified Reactive Strength Index During Jumping./
作者:	Morales, Julio Benjamin.
面頁冊數:	1 online resource (71 pages)
附註:	Source: Masters Abstracts International, Volume: 84-02.
Contained By:	Masters Abstracts International84-02.
標題:	Kinesiology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29261335click for full text (PQDT)
ISBN:	9798841741091

Prediction of Vertical Stiffness in College-Aged Males Using Modified Reactive Strength Index During Jumping.
Morales, Julio Benjamin.

Prediction of Vertical Stiffness in College-Aged Males Using Modified Reactive Strength Index During Jumping. - 1 online resource (71 pages)

Source: Masters Abstracts International, Volume: 84-02.

Thesis (M.A.)--Indiana State University, 2022.

Includes bibliographical references

Assessment of the lower extremity in human movement has been utilized in identifying individual force expression in various movements. Practitioners have implemented the use of force platforms more frequently as their cost has continued to decline. This has contributed to sport performance practitioners' implementation of force platforms in athlete assessment and monitoring, more specifically assessing the counter-movement vertical jump. Through this use, many metrics have been developed, such as the modified reactive strength index and vertical stiffness, to assess the interaction of lower extremity muscle-tendon units during counter-movement vertical jumping. The present study analyzed ground reaction forces that occur during a counter-movement vertical jump to examine how measures assessing stretch-shortening cycle interact. The participants consisted of thirteen recreationally active males that volunteered for this study. Vertical ground reaction forces were measured using a force platform (1000 Hertz) and exported into an RStudio vertical jump program for further analysis. Stepwise linear regression was performed to investigate the relationship between vertical stiffness, modified reactive strength index, body mass, and body fat free weight. Modified reactive strength index was a significant predictor of vertical stiffness (p = .010, Adj. R2= .421). These results suggest that further examination of the mathematical equation used for RSImod is needed to eliminate possible effects of confounding variables within the measure for adequate assessment of the lower extremity muscle-tendon units' status during counter-movement vertical jumping.

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

Mode of access: World Wide Web

ISBN: 9798841741091Subjects--Topical Terms:

517627
Kinesiology.
Subjects--Index Terms:

Counter-movement jumpIndex Terms--Genre/Form:

542853
Electronic books.

Prediction of Vertical Stiffness in College-Aged Males Using Modified Reactive Strength Index During Jumping.
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