| |
Pre-race (T0)
|
RI (pre-race)
|
Post-race (T1)
|
RI (post-race)
|
P value
|
|---|
|
ECG
|
|
PR interval (sec)
|
0.279 (+/−0.049)
|
0.211–0.381
|
0.193 (+/−0.035)
|
0.146–0.259
|
<0.0001
|
|
QRS duration (sec)
|
0.098 (+/−0.013)
|
0.075–0.118
|
0.093 (+/−0.012)
|
0.073–0.113
|
.0789
|
|
QT interval (sec)
|
0.445 (+/− 0.053)
|
0.355–0.567
|
0.353 (+/− 0.047)
|
0.271–0.436
|
<0.0001
|
|
QTc interval (sec)
|
0.507 (+/− 0.051)
|
0.438–0.591
|
0.417 (+/− 0.024)
|
0.371–0.454
|
<0.0001
|
|
ST segment (mV)
|
1.3 (0.6,2.3)
|
0.2–2.9
|
1.8 (+/−1.0)
|
0.4–3.6
|
0.1115
|
|
HR (bpm)
|
39 (32,45)
|
26–63
|
86 (69,100)
|
58–126
|
<0.0001
|
|
Echocardiogram
|
|
LAD Sax (cm)
|
10.9 (+/−0.7)
|
9.8–12.2
|
10.1 (+/−0.9)
|
8.4–11.4
|
<0.0001
|
|
LAD Lax (cm)
|
13.0 (+/−0.7)
|
11.8–14.7
|
11.8 (+/− 1.1)
|
10.1–13.5
|
<0.0001
|
|
Ao (cm)
|
7.5 (+/−0.6)
|
6.6–8.6
|
7.3 (+/−0.5)
|
7.4–8.4
|
0.1547
|
|
IVSd (cm)
|
3.3 (+/−0.4)
|
2.7–4.0
|
3.5 (+/−0.4)
|
2.8–4.2
|
0.0117
|
|
LVIDd (cm)
|
12.1 (+/−1.0)
|
10.5–13.7
|
10.9 (+/−1.2)
|
8.5–13.0
|
<0.0001
|
|
LVIDs (cm)
|
6.9 (+/− 1.1)
|
5.0–8.7
|
5.5 (+/−1.2)
|
3.3–7.4
|
<0.0001
|
|
LVFWd (cm)
|
2.8 (+/−0.3)
|
2.2–3.4
|
2.8 (+/−0.5)
|
2.2–3.7
|
0.7321
|
|
FS (%)
|
42.2 (+/−7.6)
|
30.8–58.0
|
50.0 (+/−8.2)
|
38.4–67.1
|
<0.0001
|
- Pre- (T0) and post-race values (T1) were compared and the P value is reported. The P value is bolded when a significant difference between T0 and T1 was present. The QT interval was corrected for HR (QTc) using Bazett’s formula. Normally distributed data is reported in mean +/− standard deviation. Non-parametric data is reported in median with interquartile range in parenthesis. Reported with reference intervals (RI) computed using a non-parametric approach (ie. without any distributional assumptions) using percentiles 0.025 and 0.975 to report 95% reference range
