Comparison of ventilation threshold and heart rate deflection point in fast and standard treadmill test protocols.

摘要: The purpose of this study was to compare two methods for determination anaerobic threshold from different treadmill protocols. Forty-eight Croatian runners national rank (ten sprinters, fifteen 400-m runners, ten middle distance and thirteen long runners), mean age 21.7 +/- 5.1 years, participated in the study. They performed graded maximal exercise tests on a treadmill, standard ramp test (T(SR), speed increments 1 km x h(-1) every 60 seconds) fast (T(FR), 30 determine parameters at peak values heart rate deflection point (HR(DP)) ventilation (VT). There were no significant differences between protocols (p > 0.05) oxygen uptake (VO(2max), 4.48 0.43 4.44 0.45 L min(-1)), weight related VO(2max) (62.5 6.2 62.0 6.0 mL kg(-1) pulmonary (VE(max), 163.1 18.7 161.3 19.9 min(-1)) (HR(max), 192.3 8.5 194.4 8.7 bpm) (T(FR) T(SR), respectively). Moreover, T(FR) T(SR) where found VT HR(DP) when expressed as VO2 HR. However, there effect slope running (AnT), independent method used (VT: 16.0 2.2 vs 14.9 h(-1);HR(DP): 16.5 1.9 2.0 Linear regression analysis revealed high between-test between-method correlations VO2, HR (r = 0.78-0.89, p < 0.01). present has indicated that (VO2, ventilation, VT/HR(DP)) are protocol, while is speed. demonstrates linearity may be an accurate predictor trained independently protocol used.