Table 2 The linear regression relationship between local thresholds and systemic aerobic capacity indices. Explained variable Explanatory variable (x) = BpVL Explanatory variable (x) = BpGL (y) b c R2a* RMSE* b c R2a RMSE LT VO2 (L·min-1) 1.038 .199 .800 .334 .871 .314 .691 .415 VO2 (mL·min-1·kg-1) .942 5.622 .703 4.546 .779 7.351 .597 5.295 WR (W) .980 17.573 .774 16.535 .893 15.266 .665 20.161 GET VO2 (L·min-1) 1.093 .221 .856 .280 .909 .363 .741 .376 VO2 (mL·min-1·kg-1) 1.061 4.046 .795 3.833 .846 7.129 .660 4.937 WR (W) 1.010 21.271 .864 12.513 .890 23.152 .689 18.964 Peak VO2 (L·min-1) 1.583 .362 .803 .490 1.327 .542 .706 .598 VO2 (mL·min-1·kg-1) 1.093 .221 .856 .280 .909 .363 .741 .376 WR (W) 1.083 64.886 .773 18.348 1.030 55.415 .721 20.337 LT, lactate threshold; GET, gas exchange threshold; Peak, peak values during the incremental exercise; Linear regression (‘y=b*x+c’) with the least squares method was used to analyse the relationship between local thresholds (BpVL and BpGL) and systemic aerobic capacity indices (LT, GET and VO) when they were expressed as corresponding VO and WR; R, degree-of-freedom adjusted coefficient of determination; RMSE, root mean square error (standard error). * paired-samples tests showed significant differences in R (p < 0.001) and RMSE (p = 0.03) between the explanatory variables (x) (BpVL and BpGL).