•  
  •  
 

Abstract

The blood glucose threshold (GT) and critical velocity (CV) has been used for the assessment of the aerobic capacity for trained individuals in replace the blood lactate and ventilatory parameters for anaerobic threshold determination. But, there are few studies with physically active subjects. The purpose of this study was to measure, compare and correlate the running velocities associated with the GT and CV of a group of untrained men. Fifteen adult men (23±3.74 years old; 72±10.97 kg; 1.76±0.07 m; 21±5.36 % fat mass) performed the following tests: 1) 500m and 3km time trial (Vm500 and Vm3km); 2) Incremental test on treadmill for of GT identification. The CV was obtained from linear regression (distance x time on 500m and 3km test). Normality was verified through Shapiro-Wilk, GT and CV was compared through dependent t-test and correlation by product moment Pearson. A high correlation was verified for Vm3km and CV (r=0.99 and R2=0.99), Vm3000 and GT (r=0.91 and R2=0.82), and between CV and GT (r=0.89 and R2=0.79). Differences were observed between GT and CV (138.8±19.9 and 170.6±27.8 m.min–1, respectively) (P<0.001). In conclusion, the study shows that CV can not be used for anaerobic threshold estimation, because this parameter overestimated the GT, despite the high correlation with GT and Vm3000.

Share

COinS
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.