ISSN:
1439-6327
Schlagwort(e):
Middle-distance running velocity
;
Treadmill test
;
Body dimensions
;
Energy cost of running
;
Maximal aerobic velocity
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Medizin
Notizen:
Summary In order to assess the relative contribution of aerobic processes to running velocity (v), 27 male athletes were selected on the basis of their middle-distance performances over 800, 1500, 3000 or 5000 m, during the 1987 track season. To be selected for study, the average running velocity $$(\bar \upsilon )$$ corresponding to their performances had to be superior to 90% of the best French $$\bar \upsilon $$ of the season. Maximum O2 consumption $$(\dot V_{O_{2{\text{ max}}} } )$$ and energy cost of running (C) had been measured within the 2 months preceding the track season, which, together with oxygen consumption at rest $$(\dot V_{O_{2{\text{ rest}}} } )$$ allowed us to calculate the maximalv that could be sustained under aerobic conditions: $$\upsilon _{a max} {\text{ = }}(\dot V_{O_{2{\text{ max}}} } - \dot V_{O_{2{\text{ rest}}} } ) \times {\text{ C}}^{{\text{ - 1}}} $$ . The treadmill runningv corresponding to a blood lactate of 4 mmol·−1 (v la4), was also calculated. In the whole group, C was significantly related to height (r=−0.43;P〈0.03). Neither C nor $$\dot V_{o_{2{\text{ }}max} } $$ (with, in this case, the exception of the 3000 m athletes) were correlated to $$\bar \upsilon $$ . On the other hand,v a max was significantly correlated to $$\bar \upsilon $$ over distances longer than 800 m. These $$\bar \upsilon $$ were also correlated tov la4. Howeverv la4 occurred at 87.5% SD 3.3% ofv a max, this relationship was interpreted as being an expression of the correlation betweenv a max and $$\bar \upsilon $$ . Calculation ofv a max provided a useful means of analysing the performances. At the level of achievement studied, $$\bar \upsilon $$ sustained over 3000 m corresponded tov a max. The shape of the relationship ofv/v a max as a function of the duration of the event raised the question of a possible change in C as a function of v during middle-distance running competitions.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00572183
Permalink
