Table 2.
Metabolic and physiological responses at rest for the three groups: normal weight (NW), overweight (OW), and obese (OB) adolescents.
| NW (N = 15) | OW (N = 15) | OB (N = 15) | Group effect (df = 2) | ||
|---|---|---|---|---|---|
| F | p | ||||
| O2rest (L⋅min-1) | 0.19 (0.01) | 0.35 (0.02)a | 0.45 (0.02)a,b | 11.8 | <0.0001 |
| Lactate (mmol⋅L-1) | 1.3 (0.3) | 1.3 (0.5) | 1.3 (0.7) | 1.3 | 1.53 |
| HR (beats⋅min-1) | 78.3 (2.2) | 76.2 (9.1) | 77.4 (3.1) | 2.9 | 0.44 |
| RER | 0.78 (0.09) | 0.79 (0.09) | 0.78 (0.09) | 2.2 | 0.22 |
| Erest (W) | 69 (11) | 79 (17)a | 99 (15)a,b | 6.6 | <0.01 |
| Epinephrines (nmol⋅L-1) | 0.85 (0.01) | 0.81 (0.02) | 0.82 (0.01) | 1.9 | 0.24 |
| Norepinephrines (nmol⋅L-1) | 2.50 (0.01) | 2.40 (0.04) | 2.60 (0.03) | 3.9 | 0.74 |
Values are presented as mean (standard deviation). O2rest: oxygen consumption at rest, HR: heart rate, RER: respiratory exchange ratio, E: energy consumption in Watts. aSignificant difference with NW (p < 0.01). bSignificant difference with OW (p < 0.01).