Lactate analysis in two sessions of prescribed long-distance running thought heart rate deflection point/Analise do lactato em duas sessoes de corrida prescritas atraves do ponto de deflexao da frequencia cardiaca

Introduction: The long-distance running is receiving great dedication from the sport's researchers regarding increasing performance therefore several physiological variables are important for it. Objective: The aim of this study was to analyze the heart rate deflection point, by the visual method which can be an efficient instrument for continuous aerobic training prescription. Materials and Methods: Ten (n = 10) runners (29.5 [+ or -] 6.4 years) took the test incremental test intermittent running from which was identified the HRDP for the prescription of two 30-minute workouts: a workout 10% below the HRDP, called subthreshold, and another 10% above, called suprathresh-old. We used the statistical package SPSS 18.0 for data processing. Results: The lactate concentration during the subthreshold, as much in half time workout (3.85 mmol/L) as at the end (3.68 mmol/L) were significantly lower than the suprathresh-old (p=0,001), which was 6.31 mmol/L in the minute fifteen, and 7 mmol/L at the end. Discussion: The Shapir-Wilk test shown that both concentration of the suprathresh-old workout were significantly superior p