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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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DEVELOPMENT OF BODY COMPOSITION, HORMONE PROFILE, PHYSICAL FITNESS, GENERAL PERCEPTUAL MOTOR SKILLS, SOCCER SKILLS AND ON-THE-BALL PERFORMANCE IN SOCCER-SPECIFIC LABORATORY TEST AMONG ADOLESCENT SOCCER PLAYERS |
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Tomi Vänttinen1  ,
Minna Blomqvist1 and Keijo Häkkinen2 |
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1Research Institute for Olympic Sports, 2Department of Biology of Physical Activity, University of Jyvaskyla, Finland. |
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© Journal of Sports Science and Medicine (2010) 9, 547 - 556 |
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| ABSTRACT | |||
| The aim of the present study was to examine the development of
on-the-ball skills in soccer-specific laboratory test and to examine how
traditional measures of body composition, hormone profile, physical fitness,
general perceptual motor skills and soccer skills were related to performance
measured in open skill environment among 10, 12, and 14-year-old regional
male soccer players (n = 12/group). The measured variables were height,
weight, fat, muscle mass, testosterone, 10m sprint, agility, counter movement
jump, peripheral awareness, Eye- Hand-Foot coordination, passing skill,
dribbling skill and on-the-ball skills (performance time and passing accuracy)
in soccer-specific laboratory test. A significant main effect by age was
found in all measured variables except in fat, in peripheral awareness and
in passing accuracy. In discriminant analysis 63.9% (λ = 0.603, F =
4.600, p < 0.01) of the players were classified correctly based on physical
fitness and general perceptual motor skills into three ability groups originally
classified with performance time in soccer-specific laboratory test. Correlation
co- efficient analysis with-in age groups revealed that variables associated
with performance time in soccer-specific laboratory test were peripheral
awareness (r = 0.72, p < 0.01) in 10-year-olds; testosterone (r = -0.70,
p < 0.05), dribbling skill (r = 0.73, p < 0.01) and passing skill
(r = 0.73, p < 0.01) in 12-year-olds; agility (r = 0.79, p < 0.01),
counter movement jump (r = - 0.62, p < 0.01), dribbling skill (r = 0.80,
p < 0.01) and passing skill (r = 0.58, p < 0. 05) in 14-year olds.
Corresponding relationships with passing accuracy were weight (r = 0.59,
p < 0.05), fat (r = 0.66, p < 0.05), 10m sprint (r = 0.71, p <
0.01) and countermovement jump (r = -0.64, p < 0.05) in 10-year-olds;
Eye-Hand-Foot coordination (r = 0.63, p < 0.05) in 14-year- olds. The
relationship between soccer-specific anticipation time and performance time
in soccer- specific laboratory test was significant only in the 14-year-old
age group (r = 0.76, p < 0.01). To conclude, on-the-ball skill performance
in soccer-specific laboratory test improved with age and it seemed that
soccer-specific perceptual skills became more and general perceptual motor
skills less important with age in soccer-specific laboratory test.
Key words: Football, youth, perception, growth, puberty. |
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