PMC4857358_01
Resting electrocardiogram of a 47-year-old male sportsman:6-time Ultraman winner.
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PMC4857358_01_10.1177_2050313X14522439-fig1.jpg
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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.