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Longitudinal changes of aerobic capacity in boys

Branka Matković ; Fakultet za fizičku kulturu Sveučilišta u Zagrebu
Radovan Medved ; Fakultet za fizičku kulturu Sveučilišta u Zagrebu
Bojan Matković ; Fakultet za fizičku kulturu Sveučilišta u Zagrebu
Saša Janković ; Fakultet za fizičku kulturu Sveučilišta u Zagrebu

Puni tekst: hrvatski pdf 822 Kb

str. 81-88

preuzimanja: 158



The investigation involved a sample of 28 boys from their eight to their 12 year of age. Its aim was to establish longitudinal changes of maximum oxygen inatake and the corresponding spyroergometric parameters. The sample was selected from a populatio of healthy grade two boys attending one of primary schools in Zagreb. The measuring of maximum oxygen intake was carried out by direct respiration method during a continuous load of the "vita maxima" type on the moving carpet.
The maximum oxygen intake shows a significant values increase over the years, with the differences between measurings getting smaller, i. e. the increase in not linear. The relative maximum oxygen intake also shows a growing tendency but only up to the age 11, whereas its value between age 11 and 12 significantly drops.
The average absolute values and the relative oxygen intake, compared with results of other investigations, indicate that the physical fitness of our children is not of a satisfactory level.
Considering the changes of the maximum oxygen pulse, it may be concluded that adaptation to physical load in boys improves with age and that the heart works more economically in older boys.
The values indicating the level of exhaustion during maximum load (max. heart frequency, respiration quotient, ventilation quotient) do not change significantly between the age eight and twelve.

Ključne riječi

aerobic capacity; longitudinal research; boys; functional abilities

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Podaci na drugim jezicima: hrvatski ruski

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