Development of a youth database for five-hop and vertical jump tests

• Main Author: Coffman, Steven A.
• Other Authors: Humphries, Brendan
• Format: Others
• Published: 2011
• Subjects: Jumping > Physiological aspects.; Jumping > Case studies.
• Online Access: http://cardinalscholar.bsu.edu/handle/handle/187576; http://liblink.bsu.edu/uhtbin/catkey/1260493

The purpose of this study was to initiate the development of a database of values for the five-hop and vertical jump field tests for dominant and non-dominant legs in youth nine to seventeen years of age. Two hundred one youths, 102 males and 99 females, participated in all facets of the study. One trial of the five-hop test was performed on each leg and one trial was performed on each leg, then both legs, for the vertical jump test. Stature ranged from 1.41 ± 0.06 to 1.70 ± 0.07 meters for females and 1.44 ± 0.08 to 1.81 ± 0.06 meters for males. Mass ranged from 34.8 ± 4.8 to 64.3 ± 11.4 kilograms for females and 35.2 ± 10.5 to 73.1 ± 16.0 kilograms for males. Significant differences (p < 0.05) were found in dominant and non-dominant leg hops between males and females ages 12-17. Significant differences (p < 0.05) were found in dominant leg vertical jumps between males and females at ages 12-14 and 16-17 and in non-dominant leg vertical jumps at ages 12, 16 and 17. Twelve year olds had a significant difference (p < 0.05) between males and females when dominant leg hop distance was normalized to mass. When comparing non-dominant hop distance to dominant hop distance, significant differences (p < 0.05) were found between males and females 15 years of age. Values obtained for this ratio agree with the literature for adult hop ratios and suggest that limb asymmetry/deficiency determination be set at 0.85 for youth. === School of Physical Education