Table 2.
Comparison on the basis of work rate between MMSS and RCP (corrected by MRTSS) and between CP and RCP (corrected by MRTLIN)
| Ramp Slope, W/min |
|||||
|---|---|---|---|---|---|
| 5 | 10 | 15 | 25 | 30 | |
| MMSS vs. RCP (corrected by MRTSS) | |||||
| Bias, W | −3 (−14 to 9) |
6*# (−12 to 25) |
16*# (−4 to 36) |
28*# (9–47) |
32*# (10–55) |
| r | 0.99 | 0.99 | 0.98 | 0.98 | 0.98 |
| RMSE, W | 6 | 11 | 19 | 29 | 34 |
| CCC | 0.99 (0.97–1.00) |
0.98 (0.92–0.99) |
0.94 (0.83–0.98) |
0.87 (0.69–0.95) |
0.83 (0.62–0.93) |
| CP versus RCP (corrected by MRTLIN) | |||||
| Bias, W | −6 (−36 to 23) |
−4 (−46 to 39) |
10* (−23 to 43) |
29*# (−7 to 65) |
35*# (0–71) |
| r | 0.97 | 0.93 | 0.96 | 0.95 | 0.95 |
| RMSE, W | 16 | 21 | 19 | 34 | 39 |
| CCC | 0.96 (0.86–0.99) |
0.92 (0.75–0.98) |
0.94 (0.81–0.98) |
0.83 (0.59–0.94) |
0.80 (0.54–0.92) |
Bias is calculated from the Bland&Altman plot (lower and upper limits of agreement). MMSS, maximal metabolic steady state; RCP, respiratory compensation point; MRT, mean response time of V̇o2 corresponding to the intersection of the two regression lines (LIN) and at steady state (SS); r, Pearson’s coefficient of correlation; RMSE, typical root mean square error between two indexes; CCC, Lin’s concordance correlation coefficient (95% confidence interval); CP, critical power.
*
Bias is different from 0.
#
Significant difference between MMSS or CP from RCP (P < 0.05).