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Supplemental Table 4. Electrocardiographic features of the military women attended the 3000-m run test and those attended the 2-min push-up test.

ECG characteristics Participants attended the 3000-m run test (N = 177) Participants attended the 2-min push-up test (N = 89)
Q1-performance (< 965 sec) (N = 47) Q4-performance (≥ 1100 sec) (N = 42) p value Q1-performance (> 40 times) (N = 25) Q4-performance (< 30 times) (N = 28) p value
Heart rate (beats/min) 66.23 ± 8.96 69.17 ± 10.12 0.15 68.60 ± 9.95 68.93 ± 9.72 0.90
P duration (ms) 100.54 ± 16.96 98.79 ± 11.52 0.57 100.41 ± 12.30 99.30 ± 8.59 0.70
PR interval (ms) 154.11 ± 24.55 151.80 ± 17.60 0.61 148.94 ± 20.10 150.24 ± 20.83 0.81
QRS duration (ms) 90.45 ± 10.32 88.76 ± 6.98 0.37 87.28 ± 8.32 86.14 ± 7.61 0.60
QTc interval (ms) 407.87 ± 22.73 408.67 ± 23.80 0.87 406.00 ± 22.62 417.18 ± 37.04 0.19
QRS axis (degree) 74.91 ± 36.52 65.67 ± 31.74 0.20 75.04 ± 16.12 58.21 ± 31.40 0.02
ECG based LVH (%) 2 [4.3] 0 [0.0] 0.17 1 [4.0] 0 [0.0] 0.28
ECG based RVH (%) 1 [2.1] 1 [2.4] 0.93 0 [0.0] 0 [0.0] NA
Sinus bradycardia (%) 11 [23.4] 7 [16.7] 0.43 3 [12.0] 3 [10.7] 0.88
Ectopic atrial rhythm (%) 2 [4.3] 1 [2.4] 0.62 1 [4.0] 1 [3.6] 0.93
Left atrial enlargement (%) 7 [14.9] 8 [19.0] 0.56 2 [8.0] 3 [10.7] 0.73
First degree atrioventricular block (%) 2 [4.3] 0 [0.0] 0.17 0 [0.0] 1 [3.6] 0.34
Left axis deviation (%) 2 [4.3] 1 [2.4] 0.62 0 [0.0] 1 [3.6] 0.34
Right axis deviation (%) 15 [31.9] 7 [16.7] 0.09 4 [16.0] 2 [7.1] 0.31
Complete right bundle branch block (%) 2 [4.3] 0 [0.0] 0.17 0 [0.0] 0 [0.0] NA
Incomplete right bundle branch block (%) 0 [0.0] 0 [0.0] NA 0 [0.0] 0 [0.0] NA
QT prolongation (%) 0 [0.0] 0 [0.0] NA 0 [0.0] 1 [3.6] 0.34
QTc prolongation (%) 0 [0.0] 0 [0.0] NA 0 [0.0] 2 [7.1] 0.17
Inferior T wave inversion (%) 2 [4.3] 1 [2.4] 0.62 1 [4.0] 2 [7.1] 0.62

Categorical variables are expressed as N [%].

ECG, electrocardiography; LVH, left ventricular hypertrophy; NA, not available; RVH, right ventricular hypertrophy.