Validity of the modified Conconi test for determining of the maximal lactate steady state in young male athletes

  The aim of this study was to survey the validity of the modified Conconi running test for determining of the maximal lactate steady state in young male athletes. 11 young wrestler men were selected (Mean ± SD Age 19.01 ± 1.3 yrs., Height 176.64 ± 3.54 cm, BMI: 23.7 ± 4.0 kg/m2, VO2max: 51.08 ± 3.67 ml/kg/min) and incremental exercise tests in two sessions with an interval of 48 hours {1- accordance to conconi modified protocol (slope:1.5%, began speed: 3 km/h, increasing the speed of one Km per 60 sec) 2. criterion test: Increasing up MLSS }performed on a treadmill. The HRDP was determined by the S.Dmax model. Bland-Altman graphical model and Interclass Correlation Coefficient (ICC) statistical tests were used to evaluate the absolute agreement of the methods. The results indicated high agreement between HRDP and HR of the criterion method (HRMLSS) (±1.96; 95% CI= -2.4 to +7.7 b/min; ICC= 0.81). Moreover, high agreement was observed between speed at HRDP (SpeedHRDP) and speed of the criterion method (SpeedMLSS) (±1.96; 95% CI= -0.57 to +0.95 km/h; ICC= 0.83). The HR and velocity at the deflection point determined by the modified Conconi running test could predict the HRMLSS and speedMLSS. It seems that this test could be a good alternative to more invasive method to determine the anaerobic threshold test as a simple, noninvasive short for the prescribed exercise intensity in athletes used.