Indirect calorimetry
COLD
The study visits started at 8.30 am and all participants were fasted for at least 8 h prior to the study visit. EE was measured during 30 min of the warm phase and during the final 30 min of the cold phase using a ventilated-hood indirect calorimeter (Quark RMR, Cosmed, Rome Italy). The calorimeter was calibrated against a reference gas mixture (16% O