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Optimization of triple jump performa...

Al-Kilani, Maher Adnan.

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Optimization of triple jump performance: A simple model.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Optimization of triple jump performance: A simple model./
Author:	Al-Kilani, Maher Adnan.
Description:	90 p.
Notes:	Source: Dissertation Abstracts International, Volume: 51-09, Section: B, page: 4436.
Contained By:	Dissertation Abstracts International51-09B.
Subject:	Applied Mechanics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9104589

Optimization of triple jump performance: A simple model.
Al-Kilani, Maher Adnan.

Optimization of triple jump performance: A simple model. - 90 p.

Source: Dissertation Abstracts International, Volume: 51-09, Section: B, page: 4436.

Thesis (Ph.D.)--Purdue University, 1990.

A simple mathematical model was presented to simulate the motion of the center of gravity of a human body throughout the three flight phases of the triple jump. Equations of the three phases were used in one chain equation in which the independent input variable was the initial touchdown velocity to the hop phase. The final equation of motion was manipulated as a function of the three support times. The path of the center of gravity during the support and flight of an elite triple jumper was superimposed against the path generated from the model. Finally, the optimization routine was formulated. The results of the optimization of a particular subject indicated that increasing the hop phase distance ratio by 1.8% and decreasing the step phase distance ratio by 4.4% would allow the jumper to increase the jump phase distance ratio by 2.6%. This could be done by using the same amount of energy as in the original jump. By using this distribution of the three phases, the subject would gain about 0.56m compared to the original total distance. The results of optimization were found to be similar to actual changes made by athletes in performing over time in different competitions. Estimates of possible error indicate a high sensitivity to the force generated by the subject at takeoff from each phase and the vertical position of the center of gravity at takeoff of each phase. Further study and validation of the results are recommended.Subjects--Topical Terms:

1018410
Applied Mechanics.

Optimization of triple jump performance: A simple model.
LDR:02289nmm 2200265 4500 001 1843011
005 20051010101549.5
008 130614s1990 eng d
035 $a (UnM)AAI9104589
035 $a AAI9104589
040 $a UnM $c UnM
100 1 $a Al-Kilani, Maher Adnan. $3 1931254
245 1 0 $a Optimization of triple jump performance: A simple model.
300 $a 90 p.
500 $a Source: Dissertation Abstracts International, Volume: 51-09, Section: B, page: 4436.
500 $a Major Professor: Carol J. Widule.
502 $a Thesis (Ph.D.)--Purdue University, 1990.
520 $a A simple mathematical model was presented to simulate the motion of the center of gravity of a human body throughout the three flight phases of the triple jump. Equations of the three phases were used in one chain equation in which the independent input variable was the initial touchdown velocity to the hop phase. The final equation of motion was manipulated as a function of the three support times. The path of the center of gravity during the support and flight of an elite triple jumper was superimposed against the path generated from the model. Finally, the optimization routine was formulated. The results of the optimization of a particular subject indicated that increasing the hop phase distance ratio by 1.8% and decreasing the step phase distance ratio by 4.4% would allow the jumper to increase the jump phase distance ratio by 2.6%. This could be done by using the same amount of energy as in the original jump. By using this distribution of the three phases, the subject would gain about 0.56m compared to the original total distance. The results of optimization were found to be similar to actual changes made by athletes in performing over time in different competitions. Estimates of possible error indicate a high sensitivity to the force generated by the subject at takeoff from each phase and the vertical position of the center of gravity at takeoff of each phase. Further study and validation of the results are recommended.
590 $a School code: 0183.
650 4 $a Applied Mechanics. $3 1018410
650 4 $a Education, Physical. $3 1018000
690 $a 0346
690 $a 0523
710 2 0 $a Purdue University. $3 1017663
773 0 $t Dissertation Abstracts International $g 51-09B.
790 1 0 $a Widule, Carol J., $e advisor
790 $a 0183
791 $a Ph.D.
792 $a 1990
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9104589