ĐIỆN TÂM ĐỒ Ở TRẠNG THÁI NGHỈ CỦA VẬN ĐỘNG VIÊN ĐỘI TUYỂN THỂ THAO QUỐC GIA SO VỚI CỦA NGƯỜI BÌNH THƯỜNG

Abstract

The electrocardiogram survey of 728 athletes of the national team at rest showed many
different characteristics compared with the ECG in normal people (p>0.05). Specifically, the indicators
in male and female are as follows respectively: 1) Heart rate is 61bpm and 62bpm, a normal person is
75bpm; 2) The cardiac axis (angle α) tends to deviate to the left by α = 590 and α = 610, compared with
= 650; 3) P wave: mean duration is (96 ms and 94 ms, versus 80 ms); average amplitudes are (14.4mm
and 13.9mm, compared to 12mm); 4) The average PR segment time is 177ms and 167ms, compared to
150ms; 5) QRS complex: mean time 78ms and female 74ms, compared to 70ms; The Sokolow index
31.1 ± 4.2 mm and 30.7 ± 4.4 mm, compared to <35mm; 6) T wave amplitude: young male athletes,
male athletes, female athletes and young female athletes are 6.3±1.9 mm, 8.7±2.6 mm, 8.5±2.9 mm
and 6,4±1,6 mm compared to 6, respectively, up to 12mm; 7) The QT interval in young male athletes,
male athletes, female athletes and young female athletes were 359± 0 ms, 366± 6ms, 63±15 ms and
379±13ms, compared with 0.36s in men and 0.37s in women; The QTc interval in young male athletes,
male athletes, young female athletes and female athletes was 417 ± 8 ms, 437 ± 9 ms, 424 ± 9 ms and
455 ± 8.5 ms, compared with normal people: QTc is >440ms in men or >460ms in women. Gender and
exercise time affect EKG characteristics: 1) The mean QTc interval in men is 437 ± 9 ms and 455 ±
8.5ms in women, compared with normal men <440ms and female <460ms; 2) The QTc interval in male
athletes is shorter than in female athletes: male athletes are 437 ± 9 ms; young male athletes is 417 ± 8
ms; female athletes is 442 ± 8 ms and young female athletes is 424 ± 9 ms; T wave amplitude in male
athletes is 8.7 ± 2.6 mm; female athletes is 8.0 ± 2.9 mm.