Table 1.
Subject characteristics.
Table 2.
Average values, limits of agreement and CVs for Fatmax and physiological measures at Fatmax determined with three approaches: SIN, P3 and MV.
Figure 1.
Bland-Altman plots of Fatmax and MFO determined with SIN, P3 or MV. SIN, sine model.
P3, polynomial 3rd degree; MV, measured values; Fatmax, exercise intensity at which maximal fat oxidation rate occurs; , maximal oxygen uptake; MFO, maximal fat oxidation rate; Biases (solid lines) and 95% limits agreement (dashed lines).
Figure 2.
Course of average ,
, HR, RER, Fox and CHOox during two identical submaximal incremental tests (mean and SD).
, maximal aerobic power output;
, oxygen uptake;
, carbon dioxide production; RER, respiratory exchange ratio; HR, heart rate; Fox, fat oxidation rate; CHOox, carbohydrate oxidation rate. *significantly increases with exercise intensity, §rest significantly different than exercise (20–57.5%
), † significantly different than 57.5%
.
Table 3.
Coefficients of variation (%) for respiratory values and substrate oxidation rates in reponse to a submaximal graded exercise test.
Table 4.
Limits of agreement between Test 1 and Test 2 for respiratory values and substrate oxidation rates in response to a submaximal graded exercise test.
Table 5.
Three case scenario in which CV for and
are≤3%.