Purpose: High intensity and longtime aerobic exercise may lead to the remodeling of both left and right ventricles with increased myocardial mass and cavity dilatation,which is mainly reflected in the changes of traditional cardiac function parameters.Feature tracking myocardial strain allows quantitative strain analysis of myocardial functionThe purpose was to quantitatively evaluate traditional cardiac function and feature tracking myocardial strain of exercise-induced ,andMaterials and methods: The study included 67 healthy volunteers (21 ± 2 years of age). The exercise group (n=43) who fulfilled our defined exercise criteria. The control group (n=23) who maintained a basic daily life .Noncontrast enhancement CMR scanning were performed on all the subjects using a 3T MRI scanner .Cvi42 software was used for post-processing . Left ventricular cardiac function and overall globle stress were measured.Results: Cardiac function parameters in the exercise group were significantly higher than those of the control group except for the ejection fractions (EFs) and heart rates (HRs). The GRS peak strain and GLS peak diastolic strain rates of both groups were significantly different (P＜0.05).The GRS peak strains and EFs were partly correlated (R=0.61). The GRS peak diastolic strains and cardiac Indices (CIs) were significantly correlated (R=0.68). The GCS and GRS Peak Strains showed highly negative correlations (R=–0.96). The GCS and GRS time to peak values were also highly correlated (R= 0.87). Conclusion:The initial results showed that Changes in the functional parameters were more obvious than in the myocardial strain parameters, and some strain indices were correlated with the cardiac functional parameters,when the remodeling of the heart occurs.This is a new attempt to quantitatively assessment of Cardiac function and strain by Non-contrast-enhanced magnetic resonance.