Table 3.
Comparison of Lean Men and Men With Obesity at Individualized Coldest Tolerable Ta
| Lean | Obese | P | |
|---|---|---|---|
| Coldest tolerable Ta, °C | 21.2 ± 1.5 | 20.3 ± 1.6 | 0.2 |
| REE, kcal/h | 84.5 ± 13.4 | 91.9 ± 11.3 | 0.2 |
| CIT (REE at coldest tolerable Ta − BMR), kcal/h | 12.5 ± 9.1 | 5.2 ± 6.1 | 0.04 |
| REE, % BMR | 117.1 ± 11.2 | 106.0 ± 7.3 | 0.01 |
| REE/BSA, kcal/h/m2 | 42.3 ± 5.6 | 39.2 ± 3.8 | 0.2 |
| Respiratory quotient | 0.89 ± 0.04 | 0.83 ± 0.04 | 0.001 |
| Core temperature, °C | 36.4 ± 0.4 | 36.4 ± 0.5 | 0.8 |
| Mean Tskin, °C | 29.9 ± 0.8 | 29.4 ± 0.9 | 0.2 |
| Average EMG activity, μV | 3.9 ± 2.0 | 2.1 ± 0.4 | 0.01 |
| Self-reported shivering, % | 41.4 ± 36.3 | 49.7 ± 28.2 | 0.6 |
| Heart rate, beats/min | 59.6 ± 6.3 | 64.6 ± 9.5 | 0.1 |
| BAT volume, mL | 334 ± 188 | 143 ± 138 | 0.01 |
| BAT activity, mL ⋅ g/mL | 1890 ± 1277 | 651 ± 681 | 0.01 |
| BAT SUVmean, g/mL | 4.9 ± 1.6 | 4.0 ± 1.0 | 0.1 |
| BAT SUVmax, g/mL | 54.7 ± 27.6 | 26.7 ± 18.5 | 0.01 |
Results are means ± SD. Boldface indicates significant P values.
Abbreviation: REE, resting EE.