Figure 2. Relative left ventricular diameter (i.e., absolute left ventricular diameter divided by the square root of body surface area) of athletes and sedentary males. LDR: long-distance runners, MDR: middle-distance runners. Mean and standard deviation are presented. * Significantly lower than in long-distance runners (p < 0.05). # Significantly lower than in middle-distance runners (p < 0.05).