Table 4 Pearson’s correlations of biochemical measures with echocardiographic measures of left ventricular function
Biochemical measuresΔ cTnIΔ BNP
Wall motion index0.77‡0.70‡
Δ SI0.52†0.48†
Δ SRs0.45*0.40*
Δ LVEF0.350.25
  • *p<0.05; †p<0.01; ‡p<0.001.

  • Δ BNP, difference in B-type natriuretic peptide; Δ cTnI, difference between post-race and baseline cardiac troponin I; Δ SI, difference in integrated strain; Δ SRs, difference in peak systolic strain rate; Δ LVEF, difference in left ventricular ejection fraction; Wall motion index,16-segment wall motion score/16.