We evaluated whether self-reported physical activity (PA) level modulates whole-body total heat loss (WB-THL) as assessed using direct calorimetry in 10 young adults (aged 22 ± 3 years) matched for rate of peak oxygen consumption (an index for aerobic fitness), but of low and high self-reported PA, during 3 incremental cycling bouts (∼39%, 52%, and 64% peak oxygen consumption) in the heat (40 °C). We showed that level of self-reported PA does not appear to influence WB-THL independently of peak oxygen consumption.
Keywords: calorimetry; calorimétrie; consommation d’oxygène de pointe; exercice physique; exercise; heat loss; niveau d’activité physique autorapporté; peak oxygen consumption; perte de chaleur; self-reported physical activity level.