Physiological Responses in Male and Female 400m Sprinters / Fiziološke reakcije muških i ženskih sprintera na 400m

The primary objective of this study was to determine the differences between male and female athletes competing in the 400m running event, in the parameters for the assessment of not only aerobic and anaerobic energy capacity but also other physiological parameters. Trained 400m (14 male and 14 female) track athletes volunteered to take part in this study. All subjects performed an incremental treadmill test (1 km/h speed increase per minute, 1.5% gradient). The parameters FVC and FEV1S in the male athletes were of higher values than in the female athletes, while there were no significant differences in FEV1S%. A statistically significant difference was found in the parameters for the assessment of aerobic energy capacity in favour of male athletes. Significantly higher values of anaerobic capacity were found in male sprinters (5.7  km/h) compared to female sprinters (4.5 km/h). In other physiological parameters such as HRmax values and HR at VT there were no statistically significant differences. It can be concluded that it is necessary to determine whether there are differences in these parameters between male and female sprinters which will result in a more organized plan for the collective training process. Studies like this can help coaches develop athletes’ performance according to their abilities. Key words: athletes; metabolic differences; ventilation ---- Primarni cilj ovog istraživanja bio je utvrditi razlike između muskih i ženskih atleticara koji se natjecu u trcanju na 400 m, u parametrima koji procjenjuju  ne samo aerobni i anaerobni energetski kapacitet vec i druge fizioloske parametre. Trenirani  atleticari na 400 m (14 muskih i 14 ženskih) dragovoljno su sudjelovali u ovom istraživanju. Svi ispitanici izvodili su inkrementalni treadmill test (1 km/h povecanje brzine u minuti, 1,5% nagib). Parametri FVC i FEV1S su kod muskih atleticara vecih vrijednosti nego u ženskih atleticarki, dok nije bilo znacajne razlike u FEV1S%. Statisticki znacajna razlika pronađena je u parametrima za procjenu aerobnog kapaciteta energije u korist muskih atleticara. Znacajno vise vrijednosti anaerobnog kapaciteta pronađene su kod muskih (5,7 km/h) sprintera u odnosu na ženske (4,5 km/h). U drugim fizioloskim parametrima, kao sto su HRmax vrijednosti i HR na VT nema statisticki znacajne razlike. Može se zakljuciti da je potrebno utvrditi postoje li razlike u tim parametrima između muskih i ženskih sprintera, koje ce rezultirati organiziranijim planiranjem kolektivnog procesa obuke. Studije kao sto je ova mogu pomoci trenerima razvijati atleticareve performanse u skladu s njihovim sposobnostima. Kljucne rijeci: atleticari, metabolicke razlike, ventilacija