Abstract
The purpose of this study was to examine the covariate influence of fat- free weight (FFW) on age-related increases in isokinetic peak torque for leg flexion and extension in high school female gymnasts. Seventy-two gymnasts (X̄ age ± SD = 15.7 ± 1.2 yr) volunteered to be measured for isokinetic leg flexion and extension strength using a calibrated Cybex II dynamometer at 30, 180, and 300° · s-1 as well as for body composition from underwater weighing. The results indicated that there were significant (P <0.05) zero- order correlations for age versus leg flexion (r = 0.36-0.47) and extension (r = 0.51-0.57) peak torque, as well as FFW versus leg flexion (r = 0.50- 0.66) and extension (r = 0.62-0.73) peak torque. There were also significant (P <0.05) first-order partial correlations between age and peak torque (covaried for FFW) for leg extension at 30 (r = 0.25), 180 (r = 0.36-0.39, and 300° · s-1 (r = 0.25-0.28) but not for leg flexion. These findings indicated that for the high school female gymnasts in the present study, there were age-related increases in strength that could not be accounted for by changes in FFW. It is possible that factors such as an increase in muscle mass per unit of FFW and/or neural maturation contribute to strength increases during adolescence in female athletes.
| Original language | English |
|---|---|
| Pages (from-to) | 610-613 |
| Number of pages | 4 |
| Journal | Medicine and Science in Sports and Exercise |
| Volume | 28 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1996 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Public Health, Environmental and Occupational Health
- Physical Therapy, Sports Therapy and Rehabilitation
- Orthopedics and Sports Medicine
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Age, fat-free weight, and isokinetic peak torque in high school female gymnasts. / Housh, T. J.; Johnson, G. O.; Housh, D. J.; Weir, J. P.; Weir, L. L.; Eckerson, Joan; Stout, J. R.
In: Medicine and Science in Sports and Exercise, Vol. 28, No. 5, 1996, p. 610-613.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Age, fat-free weight, and isokinetic peak torque in high school female gymnasts
AU - Housh, T. J.
AU - Johnson, G. O.
AU - Housh, D. J.
AU - Weir, J. P.
AU - Weir, L. L.
AU - Eckerson, Joan
AU - Stout, J. R.
PY - 1996
Y1 - 1996
N2 - The purpose of this study was to examine the covariate influence of fat- free weight (FFW) on age-related increases in isokinetic peak torque for leg flexion and extension in high school female gymnasts. Seventy-two gymnasts (X̄ age ± SD = 15.7 ± 1.2 yr) volunteered to be measured for isokinetic leg flexion and extension strength using a calibrated Cybex II dynamometer at 30, 180, and 300° · s-1 as well as for body composition from underwater weighing. The results indicated that there were significant (P <0.05) zero- order correlations for age versus leg flexion (r = 0.36-0.47) and extension (r = 0.51-0.57) peak torque, as well as FFW versus leg flexion (r = 0.50- 0.66) and extension (r = 0.62-0.73) peak torque. There were also significant (P <0.05) first-order partial correlations between age and peak torque (covaried for FFW) for leg extension at 30 (r = 0.25), 180 (r = 0.36-0.39, and 300° · s-1 (r = 0.25-0.28) but not for leg flexion. These findings indicated that for the high school female gymnasts in the present study, there were age-related increases in strength that could not be accounted for by changes in FFW. It is possible that factors such as an increase in muscle mass per unit of FFW and/or neural maturation contribute to strength increases during adolescence in female athletes.
AB - The purpose of this study was to examine the covariate influence of fat- free weight (FFW) on age-related increases in isokinetic peak torque for leg flexion and extension in high school female gymnasts. Seventy-two gymnasts (X̄ age ± SD = 15.7 ± 1.2 yr) volunteered to be measured for isokinetic leg flexion and extension strength using a calibrated Cybex II dynamometer at 30, 180, and 300° · s-1 as well as for body composition from underwater weighing. The results indicated that there were significant (P <0.05) zero- order correlations for age versus leg flexion (r = 0.36-0.47) and extension (r = 0.51-0.57) peak torque, as well as FFW versus leg flexion (r = 0.50- 0.66) and extension (r = 0.62-0.73) peak torque. There were also significant (P <0.05) first-order partial correlations between age and peak torque (covaried for FFW) for leg extension at 30 (r = 0.25), 180 (r = 0.36-0.39, and 300° · s-1 (r = 0.25-0.28) but not for leg flexion. These findings indicated that for the high school female gymnasts in the present study, there were age-related increases in strength that could not be accounted for by changes in FFW. It is possible that factors such as an increase in muscle mass per unit of FFW and/or neural maturation contribute to strength increases during adolescence in female athletes.
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UR - http://www.scopus.com/inward/citedby.url?scp=0029942586&partnerID=8YFLogxK
U2 - 10.1097/00005768-199605000-00012
DO - 10.1097/00005768-199605000-00012
M3 - Article
VL - 28
SP - 610
EP - 613
JO - Medicine and Science in Sports and Exercise
JF - Medicine and Science in Sports and Exercise
SN - 0195-9131
IS - 5
ER -