Table 1 Pre-race physical and echocardiographic characteristics
CharacteristicsOverall (n = 27)Male (n = 20)Female (n = 7)
Age (years)32 (22–54)32 (22–54)29 (25–34)
Weight (kg)72.6 (8.5)76.5 (5.4)61.6 (5.4)†
Height (cm)178.9 (7.5)180.8 (5.7)173.5 (9.6)†
SBP (mm Hg)118 (9)119 (9)116 (11)
DBP (mm Hg)70 (10)71 (9)66 (11)
Body mass index (kg/m2)22.8 (1.8)23.4 (1.5)21.3 (1.8)†
Competed in endurance sport (years)8.0 (7.9)9.0 (8.7)4.9 (4.4)
Training per week (hours)19.2 (3.3)18.8 (3.4)20.3 (3.9)
LA area (cm2)27.5 (3.7)28.5 (3.3)24.5 (3.3)*
IVST (cm)1.08 (0.18)1.11 (0.19)1.00 (0.12)
PWT (cm)1.06 (0.17)1.09 (0.18)0.99 (0.12)
RWT0.39 (0.11)0.40 (0.13)0.38 (0.05)
LVEDD (cm)5.50 (0.52)5.59 (0.52)5.26 (0.48)
LVM (g)276 (49)293 (36)233 (54)
LVEF (%)60.4 (4.7)59.6 (4.5)62.6 (5.2)
E (m/s)0.82 (0.17)0.79 (0.14)0.91 (0.21
A (m/s)0.39 (0.11)0.38 (0.11)0.41 (0.11)
E/A2.2 (0.6)2.2 (0.7)2.3 (0.5)
e′ Septal (cm/s)10.0 (1.5)9.8 (1.6)10.4 (1.2)
E/e′ ratio8.4 (1.8)8.2 (1.7)8.8 (2.0)
  • All values expressed as mean (SD) except age expressed as median and range.

  • *p<0.05; †p<0.01 for differences between the male and female cohorts.

  • A, mitral late peak velocity; DBP, diastolic blood pressure; e′, mitral annulus early peak velocity; E, mitral early peak velocity; E/A, ratio of early to late peak diastolic transmitral flow velocity; E/e′, ratio of mitral early peak velocity/mitral annulus early peak velocity; IVST, diastolic interventricular septum thickness; LA, left atrial; LVEDD, left ventricular end-diastolic diameter; LVEF, left ventricular ejection fraction; LVID, left ventricular internal diameter; LVM, left ventricular mass calculated with the Penn cube formula: LVM  = 1.04((LVEDD + PWT + IVST)3 – LVID3) − 13.6 g; PWT, diastolic posterior wall thickness; RWT, relative left ventricular wall thickness calculated as (PWT/IVST)/LVEDD; SBP, systolic blood pressure.