Resumo

SILVA-CAVALCANTE, Marcos David et al. Estimation of contributions of the anaerobic lactic and alactic systems during constant-load exercises at intensities below the VO_2max. Rev. Bras. Educ. Fís. Esporte [online]. 2013, vol.27, n.02, pp.209-216. ISSN 1981-4690.

The purpose this study was that estimated contributions of the anaerobic lactic (MAL) and alactic (MAA) metabolism during constant load exercises at intensities below the maximal oxygen capacity uptake ( VO_2max). Ten males (23 ± 4 years, 176.4 ± 6.8 cm, 72.4 ± 8.2 kg, 12.0 ± 4.5 % of fat body) performed in the first visit a progressive test until exhaustion to identification of VO_2max, power output corresponding to the VO2max (WVO_2max) and second ventilatory threshold (LV2). On the second and third visit, the participants performed six constant workload tests (3 per session) with intensities below VO_2max. There was a predominance of MAL about MAA during the exercises sub-maximal from intensity corresponding to the LV2, being significantly higher at 90% O2max (p < 0.05). Thus, these results may help coaches to implement training loads appropriate to their athletes, according to the metabolic demand of the competition.

Palavras-chave : Sub-VO_2max Work Load; Ventilatory Threshold; Anaerobic Alactic Metabolism; Anaerobic Lactic Metabolism.

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