ambitious members of school sport clubs and the
study was explained to them as part of between-club competition,
thus a reduced motivation seemed rather unlikely.
Still, the relatively short training period (8 weeks)
might have been one of the factors responsible for the
low improvement.
Training-induced effects are known to be expressed
more strongly when the same kind of exercise (e.g. running)
was applied throughout the training and to determining
‡O2max, compared with mixed exercises, both
in adults and in children [1]. In this study, two swimming
styles were applied for 8-week training due to the
difference in energy expenditures – 0.79 and 1.29 kJ/m
for the free and classical styles, respectively [2]. This,
combined with the fact that the performance depends
(physiologically and biomechanically) on the functional
capacity and movement technique [5], led to the presumption
that boys training classical style swimming
would improve their performance. Such improvement was
actually noted in boys training classical style swimming
but only in the 400-m test performed in free style. The
8-week training in given swimming style did not negatively
affect the performance in other style than the trained
one; thus, the results seem to point to a general improvement
in physical fitness and not in swimming technique.
This may be of importance in competitive training
ambitious members of school sport clubs and thestudy was explained to them as part of between-club competition,thus a reduced motivation seemed rather unlikely.Still, the relatively short training period (8 weeks)might have been one of the factors responsible for thelow improvement.Training-induced effects are known to be expressedmore strongly when the same kind of exercise (e.g. running)was applied throughout the training and to determining‡O2max, compared with mixed exercises, bothin adults and in children [1]. In this study, two swimmingstyles were applied for 8-week training due to thedifference in energy expenditures – 0.79 and 1.29 kJ/mfor the free and classical styles, respectively [2]. This,combined with the fact that the performance depends(physiologically and biomechanically) on the functionalcapacity and movement technique [5], led to the presumptionthat boys training classical style swimmingwould improve their performance. Such improvement wasactually noted in boys training classical style swimmingbut only in the 400-m test performed in free style. The8-week training in given swimming style did not negativelyaffect the performance in other style than the trainedone; thus, the results seem to point to a general improvementin physical fitness and not in swimming technique.This may be of importance in competitive training
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