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Table 2 3-parameter vs. 4-parameter model to describe the BLC-response to MSE30

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.

0.9813

3.3496

14.9744

0.3805

 

0.0304

 
 

4-Par.

0.9613

3.2491

11.5457

0.4533

-1644.1026

0.0002

 

2

3-Par.

0.9944

1.2735

16.2805

0.4054

 

0.0213

#

 

4-Par.

0.9946

0.5160

12.5178

0.3504

-733.8497

0.0004

 

3

3-Par.

0.9929

1.7610

15.8388

0.5378

 

0.0098

#

 

4-Par.

0.9934

0.5882

11.1687

0.4186

-15.7730

0.0142

 

4

3-Par.

0.9754

2.0272

10.0625

0.6528

 

0.0234

 
 

4-Par.

0.9369

1.7294

6.4807

0.5995

-1935.3727

0.0001

 

5

3-Par.

0.9939

1.5333

18.7569

0.3780

 

0.0408

 
 

4-Par.

0.9899

1.2244

14.0299

0.4763

-717.1412

0.0006

 

6

3-Par.

0.9711

4.6991

15.1327

0.5009

 

0.0432

 
 

4-Par.

0.9560

3.2632

10.3104

0.5295

-3260.3276

0.0001

 

7

3-Par.

0.9904

1.7884

15.0838

0.6263

 

0.0193

#

 

4-Par.

0.9831

0.9845

9.8006

0.5342

-1784.7679

0.0001

 

8

3-Par.

0.9967

0.6126

14.7640

0.4912

 

0.0219

 
 

4-Par.

0.9931

0.5131

10.4533

0.5033

-977.3814

0.0003

 

9

3-Par.

0.9937

1.2066

15.2064

0.6656

 

0.0204

 
 

4-Par.

0.9880

0.7076

9.4287

0.6027

-1188.8360

0.0002

 

10

3-Par.

0.9932

1.6160

15.4396

0.5053

 

0.0126

 
 

4-Par.

0.9842

1.4673

10.9240

0.4777

-1177.0599

0.0002

 

11

3-Par.

0.9936

1.5344

17.1709

0.4081

 

0.0270

 
 

4-Par.

0.9878

1.2859

13.0576

0.4348

-2103.6627

0.0002

 
  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