Revista Brasileira de Medicina do Esporte
Print version ISSN 1517-8692
ALTIMARI, Juliana Melo; ALTIMARI, Leandro Ricardo; GULAK, Andréia and CHACON-MIKAHIL, Mara Patricia Traina. Correlations between anaerobic threshold determination protocols and aerobic performance in adolescent swimmers. Rev Bras Med Esporte [online]. 2007, vol.13, n.4, pp. 245-250. ISSN 1517-8692. http://dx.doi.org/10.1590/S1517-86922007000400007.
The purpose of this study was to correlate the anaerobic threshold speeds (ATS) obtained from fixed lactate blood concentration (ATS 4 e ATS 3.5 mM), lactate minimum speed (LacminS) and the critical speed (CS) determined from different distances and number of coordinates: CS1 (50/100/200 m), CS2 (100/200/400 m), CS3 (50/100/200/400 m) and CS4 (200/400 m) with the performance in 400 meters (s) in adolescent swimmers. The sample was constituted by 15 swimmers (10 boys and five girls = 14.7 ± 0.7 years; 61.9 ± 8.5 kg; 171.1 ± 8.8 cm) of national level, with five to seven years of experience in competitive swimming. The correlation between the indexes and the performance in 400 m (s) was made using Pearson correlation coefficients. Significance was set at p < 0.01. The correlations between ATS 4 mM, ATS 3.5 mM, LacminS and the performance in 400 m (s) were: r = -0.63, r = -0.90 e r = 0.91, respectively (p < 0.01). The correlations between CS1 (50/100/200 m), CS2 (100/200/400 m), CS3 (50/100/200/400 m), CS4 (200/400 m) and the performance in 400 m (s) were: r = -0.62, r = -0.97, r = -0.98 e r = -0.94, respectively (p < 0.01). We suggest that ATS obtained from fixed lactate blood concentration of 3.5 mM, as well as LacminS and the CS obtained through larger distances seem to be the most fitted indexes of prediction of the aerobic performance in the studied adolescent swimmers. Additionally, the number of coordinates seems no influencing the relation between CS and aerobic performance.
Keywords : Anaerobic threshold; Lactate minimum; Critical speed; Aerobic performance; Adolescent swimmers.