Figure 4From: Endurance-training in healthy men is associated with lesser exertional breathlessness that correlates with circulatory-muscular conditioning markers in a cross-sectional design Breathlessness at 60 L.min -1 ventilation plotted against A] total physical activity score (IPAQ score, see Methods) and B] heart rate (ΔHR)/ Δ V • O 2 , in inactive (n = 31, empty circles) and endurance-trained men (n = 31, filled circles). Back to article page