Cardiac output and skin blood flow in lean and obese individuals during exercise in the heat

10 men, comprising 5 obese (% body fat ≥27%) and 5 relatively lean (% body fat <20%) individuals.

Upright exercise on a cycle ergometer at 30, 50, and 70% of maximal aerobic power in a hot ambient environment (dry bulb temperature 38°C, wet bulb temperature 20°C).

Same exercise protocol in a thermoneutral environment (dry bulb temperature 22°C, wet bulb temperature 14°C), and comparison between lean and obese groups.

Cardiac output (Q) and forearm blood flow (FBF) during exercise.surrogate