case_images: PMC4857358_01
case_images: Resting electrocardiogram of a 47-year-old male sportsman:6-time Ultraman winner.
case_images: 10.1177_2050313X14522439-fig1.jpg
case_images: PMC4857358_01_10.1177_2050313X14522439-fig1.jpg
case_images: fig1-2050313X14522439
case_images: His resting ECG showed a very mild sinus bradycardia of 58 beats/min (bpm), voltage criteria for left ventricular hypertrophy, and high positive T-waves (see Figure 1). His cardiac vagal index as assessed by the 4-s exercise test was 1.68 corresponding to the 75th-90th percentile range for his age group.