Vol. 3, No 1, 2005 pp. 45 - 57
UDC 796.015.57:612.1
Scientific Paper
A COMPARISON OF THE CHANGES IN
CARDIOVASCULAR
FITNESS
FROM TWO MODELS OF WOMEN'S AEROBIC TRAINING
Radmila Kostić1, Meta Zagorc2
1University of Niš, Faculty of
Physical
Culture, Serbia and Montenegro
E-mail: rkost@medianis.net
2University of Ljubljana, Faculty of
Sport, Slovenia
Abstract. The research compares the effects of two HI-LO models
of aerobic training (aerobic dance) on the cardiovascular fitness of 29
women ages 25 to 30. The experimental program was carried out with the
assistance of two experimental groups (E1: n = 15 and E2: n = 14). The
"A" HI-LO aerobic dance model was realized over a period of 8 weeks,
with
fifty-minute training sessions three times a week. The "B" HI-LO
aerobic
dance model was realized over a period of 8 weeks, with 35-minute
training
sessions five times a week. The exercise intensity of the A and B
models
was the same (60-75% of the maximum). Cardiovascular fitness was
evaluated
by means of the following parameters: resting heart rate, heart rate
under
strain, systolic arterial blood pressure, and diastolic arterial blood
pressure, absolute value of maximal oxygen uptake and relative value of
maximal oxygen uptake. The data from the initial and final measurings
was
processed by means of a canonical discriminant analysis. Between the
groups
(E1 and E2) at the initial and final measurings there was no
statistically
significant difference regarding the studied variables. The effects of
both of the HI-LO aerobic dance models are, on the basis of the
results,
statistically significant in their entirety. The variables which
contributed
in particular to the discrimination of the initial and final measuring
results for the E1 and E2 groups are: resting heart rate and the
relative
value of maximal oxygen uptake. It was concluded that the effects of
the
two HI-LO aerobic dance models on cardiovascular fitness are equally
beneficial,
if aerobic dance is practiced over a longer period of time with
training
sessions three times a week, or if it is practiced five times a week
for
a shorter period of time, on condition that the intensity of the
exercise
remains the same.
Key words: cardiovascular fitness, aerobic dance,
training,
women.
KOMPARACIJA PROMENA KARIOVASKULARNOG
FITNESA
DVA MODELA AEROBNOG VEŽBANJA ŽENA
U istraživanju se upoređuju efekti dva HI-LO modela aerobnog vežbanja
(plesnog
aerobika) na kardiovaskularni fitnes 29 žena starih od 25 do 30 godina.
Eksperimentalni program su realizovale dve eksperimentalne grupe
(E1:n=15
i E2:n=14). "A" HI-LO model plesnog aerobika realizovan je osam
nedelja,
tri puta nedeljno sa pojedinačnim trajanjem treninga 50 minuta. "B"
HI-LO
model plesnog aerobika realizovan je osam nedelja, pet puta nedeljno sa
pojedinačnim trajanjem treninga 35 minuta. Intenzitet vežbanja A i B
modela
je bio isti (60-75% maksimalnog srcanog rada). Kardiovaskularni fitnes
je procenjen sa sledećim parametrima: puls u miru, puls u opterećenju,
sistolni arterijski krvni pritisak, dijastolni arterijski krvni
pritisak,
apsolutna vrednost maksimalne potrošnje kiseonika i relativna vrednost
maksimalne potrošnje kiseonika. Podaci sa inicijalnog i finalnog
merenja
su obrađeni kanoničkom diskriminativnom analizom. Između grupa (E1 i
E2)
na inicijalnom i na finalnom merenju nije postojala statistički
značajna
razlika u primenjenim varijablama. Efekti oba modela HI-LO plesnog
aerobika
na kardiovaskularni fitnes su, na osnovu rezultata, statistički
značajni
u celini. Varijable koje su posebno doprinele diskriminaciji rezultata
inicijalnog i finalnog merenja E1 grupe i E2 grupe su: puls u miru i
relativna
vrednost maksimalne potrošnje kiseonika. Zaključeno je da su efekti dva
HI-LO modela plesnog aerobika na kardiovaskularni fitnes podjednako
dobri,
ako se plesni aerobik u kontinuitetu vežba duže vreme, a tri puta u
nedelji,
ili ako se vežba pet puta u nedelji, a kraće vreme, uz uslov da je
intenzitet
vežbanja isti.
Ključne reči: kardiovaskularni fitnes, VO2-max, plesni aerobik,
trening, žene.
