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The Reliability and Validity of Measuring Devices for Measuring Mechanical Power.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	The Reliability and Validity of Measuring Devices for Measuring Mechanical Power./
Author:	Bradford, Luke.
Description:	1 online resource (38 pages)
Notes:	Source: Masters Abstracts International, Volume: 56-05.
Contained By:	Masters Abstracts International56-05(E).
Subject:	Kinesiology. -
Online resource:	click for full text (PQDT)
ISBN:	9780355272970

The Reliability and Validity of Measuring Devices for Measuring Mechanical Power.
Bradford, Luke.

The Reliability and Validity of Measuring Devices for Measuring Mechanical Power. - 1 online resource (38 pages)

Source: Masters Abstracts International, Volume: 56-05.

Thesis (M.S.Ed.)--University of Kansas, 2017.

Includes bibliographical references

The Reliability and Validity of Measuring Devices for Measuring Mechanical Power The primary purpose of this paper is to validate a 3-D motion capture system as a reliable and valid measurement tool to be used in the practical setting for measuring bar velocity and mechanical power output. One resistance-trained, male college student participated in this study, performing ten sets of one repetition at loads of 30, 40, 50, 60, 70, and 80% of his 1 repetition maximum (1 RM) for the barbell back squat exercise. Each repetition was simultaneously recorded with a 3-D camera (EliteForm PowerTracker; EliteForm, Lincoln, Nebraska), a tether based position transducer (gold standard), and a tether-based external dynamometer. Power values were derived using the bar velocity and the system mass (external load + 88% of body mass). Both Mean and Peak Velocity and Mean and Peak Power values were used to compare the measurement devices. In addition to linear regression, and correlation data, Bland-Altman plots (Tukey mean difference analyses) were created to measure agreement in the relative difference of values from each system. There were significant correlations (r > .80) between all 3 methods, but were highest in mean velocity and peak velocity. Mean velocity and mean power are shown to be within the limits of agreement when comparing the 3-D camera system and LPT, while peak velocity and peak power are outside of the limits of agreement. However, a comparison of 3-D camera system and external dynamometer, shows that all 4 variables were within 95% limits of agreement. Overall, the technology in question offers a reliable means of assessing velocity and power measurements in the practical setting.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355272970Subjects--Topical Terms:

721210
Kinesiology.
Index Terms--Genre/Form:

554714
Electronic books.

The Reliability and Validity of Measuring Devices for Measuring Mechanical Power.
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245 1 4 $a The Reliability and Validity of Measuring Devices for Measuring Mechanical Power.
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500 $a Source: Masters Abstracts International, Volume: 56-05.
500 $a Adviser: Andrew C. Fry.
502 $a Thesis (M.S.Ed.)--University of Kansas, 2017.
504 $a Includes bibliographical references
520 $a The Reliability and Validity of Measuring Devices for Measuring Mechanical Power The primary purpose of this paper is to validate a 3-D motion capture system as a reliable and valid measurement tool to be used in the practical setting for measuring bar velocity and mechanical power output. One resistance-trained, male college student participated in this study, performing ten sets of one repetition at loads of 30, 40, 50, 60, 70, and 80% of his 1 repetition maximum (1 RM) for the barbell back squat exercise. Each repetition was simultaneously recorded with a 3-D camera (EliteForm PowerTracker; EliteForm, Lincoln, Nebraska), a tether based position transducer (gold standard), and a tether-based external dynamometer. Power values were derived using the bar velocity and the system mass (external load + 88% of body mass). Both Mean and Peak Velocity and Mean and Peak Power values were used to compare the measurement devices. In addition to linear regression, and correlation data, Bland-Altman plots (Tukey mean difference analyses) were created to measure agreement in the relative difference of values from each system. There were significant correlations (r > .80) between all 3 methods, but were highest in mean velocity and peak velocity. Mean velocity and mean power are shown to be within the limits of agreement when comparing the 3-D camera system and LPT, while peak velocity and peak power are outside of the limits of agreement. However, a comparison of 3-D camera system and external dynamometer, shows that all 4 variables were within 95% limits of agreement. Overall, the technology in question offers a reliable means of assessing velocity and power measurements in the practical setting.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Kinesiology. $3 721210
650 4 $a Physical education. $3 1179721
655 7 $a Electronic books. $2 local $3 554714
690 $a 0575
690 $a 0523
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Kansas. $b Health, Sport and Exercise Sciences. $3 1185629
773 0 $t Masters Abstracts International $g 56-05(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10616907 $z click for full text (PQDT)