Conconiテストにおける心拍作業閾値 (HRT), Deflection Velocity (Vd), HRmaxとランニング持続時間の意義

抄録

The purpose of this study is to examine the mutual relationship among heart rate threshold (HRT), deflection velocity (Vd), maximal heart rate (HRmax), maximal aerobic speed (Saermax), maximal speed (Smax) and running time to exhaustion on the treadmill in Conconi's test in 5 female and 6 male trained distance runners. Each subject have performed 10 Conconi's test to determine the biological valiability of these physiological parameters from the running speed-heart rate relationship.

All Conconi's test except three times had a clear deflection of heart rate performance curve. The coefficients of correlation for each HRT, Vd and HRmax in test 1 and test 2, test 1 and test 10 in 11 subjects existed within an average of 0.745 from 0.938 (P<0.02). The ranges of CV (coefficient of variation) of HRT, HRmax, Vd, Saromax, Smax and running time to exhaustion in each subject were 2.2-9.9%, 0.7-4.2%, 0.8-2.5%, 1.8-5.4%, 1.4-4.5%, 1.6-10.2%, respectively. The proportions demonstrated a statistically significant relationship between a running time to exhaustion and HRT, Vd, HRmax, Saermax and Smax were 9.1%, 27.3%, 72.7%, 9.1%, 27.3%, respectively.

The present results suggets that the HRmax than the HRT, Vd, Saermax and Smax estimated by means of the running speed-heart rate relationship can be used more particularly for the determination of the individual physical condition and/or an index of trainability.