5 research outputs found
Isokinetic Peak Torque in Young Wrestlers
This is the publisher's version, also found at http://ehis.ebscohost.com/ehost/detail?vid=3&sid=34ab1967-2aea-457b-b261-e90e7b05e38c%40sessionmgr11&hid=2&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=s3h&AN=20752369The purpose of the present study was to examine age-related changes in
isokinetic leg flexion and extension peak torque (PT), PT/body weight (PT/
BW), and F*T/fat-free weight (PT/FFW) in young wrestlers. Male wrestlers (A^
= 108; age M ± SD = 11.3 + 1.5 years) volunteered to be measured for peak
torque at 30, 180, and 300° • s'. In addition, underwater weighing was performed
to determine body composition characteristics. The sample was divided
into six age groups (8.1-8.9, n = 10; 9.0-9.9, n= 11; 10.0-10.9, n = 25;
11.0-11.9, n = 22; 12.0-12.9, n = 28; 13.0-13.9, n= 12), and repeated measures
ANOVAs with Tukey post hoc comparisons showed increases across
age for PT, PT/BW, and PT/FFW. The results of this study indicated that there
were age-related increases in peak torque that could not be accounted for by
changes in BW or FFW. It is possible that either an increase in muscle mass
per unit of FFW, neural maturation, or both, contributes to the increase in
strength across age in young male athletes
Age-Related Increases in the Shoulder Strength of High School Wrestlers
This is the publisher's version, also found at http://ehis.ebscohost.com/ehost/detail?vid=4&sid=34ab1967-2aea-457b-b261-e90e7b05e38c%40sessionmgr11&hid=2&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=s3h&AN=20752108The purpose of this investigation was to examine age-related differences in
absolute and relative isokinetic shoulder strength of high school wrestlers. A
total of 122 high school wrestlers (Mage = 16.31 ± 1.18 yrs) volunteered to
be measured for arm flexion and extension strength at the shoulder joint using
a Cybex II dynamometer at 30, 180, and 300°-s"'. The sample was divided
into four age groups: 13.75-15.00 (n=22), 15.08-16.00 (n=27). 16.08-17.00
(n=34), and 17.08-18.83 years (n=39). The results ofthis study indicated
significant increases in absolute and relative arm flexion and extension strength
across age when covaried for BW and FFW. In addition, comparisons with
previously published data indicated differences between muscle groups in the
pattern of strength gains that were dependent upon the speed of muscular
contraction and may have been influenced by fiber type distribution characteristics