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Table 1 3-parameter vs. 4-parameter model to describe the BLC-response to MSE10

From: Modelling the lactate response to short-term all out exercise

No Model R2 SS ((mmol l-1)2) A & A1 (mmol l-1) k1 & y1(min-1) A2 (mmol l-1) k2 & y2(min-1) F-test
1 3-Par. 0.9612 1.4722 7.6001 0.4648   0.0665 #
  4-Par. 0.9814 0.4127 6.3018 0.3685 -18.4300 0.0206  
2 3-Par. 0.9882 0.5224 7.4582 0.4197   0.0491 #
  4-Par. 0.9902 0.2586 6.3885 0.5273 -665.7111 0.0003  
3 3-Par. 0.9932 0.7271 11.1438 0.5304   0.0317 #
  4-Par. 0.9975 0.1277 9.0771 0.4665 -403.1144 0.0007  
4 3-Par. 0.9900 0.1645 4.3546 0.6661   0.0318 #
  4-Par. 0.9885 0.0833 3.5289 0.6283 -272.6364 0.0004  
5 3-Par. 0.9934 0.6322 11.2838 0.7024   0.0498 #
  4-Par. 0.9967 0.1685 8.5908 0.6356 -21.6096 0.0209  
6 3-Par. 0.9903 0.7606 9.4807 0.7199   0.0363 #
  4-Par. 0.9924 0.2987 7.3507 0.7579 -1067.4220 0.0002  
7 3-Par. 0.9914 0.8179 10.4780 0.6771   0.0317 #
  4-Par. 0.9935 0.2906 8.0916 0.6162 -961.1428 0.0003  
8 3-Par. 0.9805 1.0944 8.1816 0.7267   0.0348 #
  4-Par. 0.9871 0.3348 6.1414 0.6068 -917.7335 0.0002  
9 3-Par. 0.9871 0.7901 8.4675 0.7458   0.0425 #
  4-Par. 0.9905 0.3065 6.4371 0.8290 -669.8416 0.0003  
10 3-Par. 0.9778 2.0009 10.7703 0.5843   0.0423 #
  4-Par. 0.9928 0.3211 8.3454 0.4849 -838.0681 0.0004  
11 3-Par. 0.9877 1.0402 10.6474 0.4781   0.0464 #
  4-Par. 0.9945 0.2487 8.5783 0.4454 -366.2962 0.0009  
  1. R2: coefficient of determination; SS: sum of squared residuals; A: extra-vascular increase of lactate (3-parameter model); A1: amplitude of the invasion of lactate into the blood compartment (4-parameter model); k1 or y1: rate constant of lactate invasion into the blood compartment; A2: amplitude of the evasion of lactate out of the blood compartment (4-parameter model); k2 or y2: rate constant of lactate evasion out of the blood compartment; #: significantly improved goodness of the fit using the 4-parameter model