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OBESITY INDICATORS AND ATHLETIC PERFORMANCE IN 11-15 YEAR-OLD CHILDREN
Nikolina Delaš
; Studij fizioterapije, Medicinski fakultet Rijeka
Anton Tudor
; Klinika za ortopediju Medicinskog fakulteta u Rijeci, Lovran
Lana Ružić
; Kineziološki fakultet Sveučilišta u Zagrebu
Branko Šestan
; Klinika za ortopediju Medicinskog fakulteta u Rijeci, Lovran
Sažetak
An increased body mass in children is usually
associated with a decrease in athletic performance.
Because of the poorer performance, children tend to avoid
the participation in sport activities. This leads to the
vicious circle resulting in further increase in body weight.
The aim of this study was to identify the motor abilities
which are most affected by the body mass increase and to
investigate the possible differences in the influence of
body mass index on motor abilities with regard to sex. The
sample comprised 224 children attending 5th, 6th , 7th and 8th
grade of the elementary school (mean age 13,07±1,24).
Prior to testing, the detailed explanations of the testing
procedure as well as the parental consent form were
distributed to the parents. The children underwent testing
procedure encompassing measurements of morphological
characteristics (height, weight, body fat percentage) and
motor abilities (various tests for speed, power, reaction
time and balance performed on Kistler Quattro jump force
platform, balance boards or Newtest Powertimer PC
system). For each child the body fat percentage and body
mass index were calculated. Each subject was checked on
percentile growth chart for children and classified into one
of four categories: underweight, normal weight,
overweight or obese. The ANOVA/MANOVA analysis
showed, in boys, a significant decrease in all tested motor
abilities with the increase of body weight except for the
balance board performance. On the contrary, the athletic
performance in girls was not significantly influenced by
the increase of body mass index. The only test in which the
decrease in performance in girls was noted was the test
measuring the frequency of lower legs repetitive
movements. In conclusion, as the overweight boys of that
age do not perform in sport activities as good as their
leaner counterparts do, we think that a special attention
should be paid to the selection of the sport activities
offered for boys in school sport clubs. We have seen here
that the balance is still well preserved, regardless of the
body mass, so it might be a good choice to offer
skateboard classes or similar activities.
Ključne riječi
body mass index; children; obesity; motor abilities
Hrčak ID:
26516
URI
Datum izdavanja:
1.7.2008.
Posjeta: 4.783 *