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The effect of ground contact time and drop height on work and power outputs for drops jump in Youth Turkish National Volleyball Players
Date
2017-12-01
Author
Deliceoğlu, Gökhan
Ünlü, Gürcan
Coşkun, Betül
Tortu, Erkan
Kocahan, Tuğba
Koçak, Mehmet Settar
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The aim of the study is to investigate the work and power capacities of drop jump performances according to drop jump height and contact time durations in Youth Turkish National volleyball players.13 national volleyball players(Xage=15.9±0.5 years) performed a series of drop jumps from heights of 20, 40, and 60cm. Two instructions, (a)''jump as high as you can'' and (b)''jump high faster than your previous one'', were given to the participants for each box heights. Two variables determined as moderate ground contact time(MC) and the shorter ground contact time(SC). Paired-Sample T-test was conducted to analyze the differences in power and work outputs in terms of contact time durations and Repeated- Measured ANOVA was also used to determine the differences according to box heights. While there were statistically significant differences between SC and MC in jumps performed for each drop heights, there was no significant difference in contact times according to box heights. The results of the study showed that drop height did not affect the contact times but made differences in maximum relative work and power. SC produced greater relative power than MC at all drop heights and greater relative works at 40 and 60cm box heights throughout the contact time duration
URI
http://dergi.nigde.edu.tr/index.php/besyodergi/index
https://hdl.handle.net/11511/74008
Journal
Niğde Üniversitesi Beden Eğitimi ve Spor Bilimleri Dergisi
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Department of Physical Education and Sports, Article
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G. Deliceoğlu, G. Ünlü, B. Coşkun, E. Tortu, T. Kocahan, and M. S. Koçak, “The effect of ground contact time and drop height on work and power outputs for drops jump in Youth Turkish National Volleyball Players ,”
Niğde Üniversitesi Beden Eğitimi ve Spor Bilimleri Dergisi
, pp. 253–258, 2017, Accessed: 00, 2021. [Online]. Available: http://dergi.nigde.edu.tr/index.php/besyodergi/index.