Key result
Athlete physiological remodeling has no effect on peak myocardial strain but reveals superior temporal deformation.
Why the study?
To compare conventional LV functional parameters, LV peak strain and strain rate, and LV temporal strain and strain rate curves across concentric, eccentric, and normal LV geometry in matched athletes.
Cross-Sectional (n=45)
Physiological concentric and eccentric remodelling in the male athlete's heart does not affect peak myocardial strain but alters temporal deformation and untwisting compared to normal geometry.
Answers are grounded in this paper and cite their sources.
Peak strain remains reliable across athlete geometries; leaves open clinical relevance of temporal deformation differences.
AIMS: To compare (1) conventional left ventricular (LV) functional parameters, (2) LV peak strain and strain rate and (3) LV temporal strain and strain rate curves in age, ethnicity and sport-matched athletes with concentric, eccentric and normal LV geometry. METHODS: Forty-five male athletes were categorised according to LV geometry including concentric remodelling/hypertrophy (CON), eccentric hypertrophy (ECC) or normal (NORM). Athletes were evaluated using conventional echocardiography and myocardial speck tracking, allowing the assessment of myocardial strain and strain rate; as well as twist mechanics. No differences in peak myocardial strain or strain rate were present between LV geometry groups including global longitudinal strain (GLS; CON -16.9% (-14.9-20.6%); ECC -17.9% (-13.0-22.1%); NORM -16.9% (-12.8-19.4%)), global circumferential strain (GCS; CON -18.1% (-13.5-24.5%); ECC -18.7% (-15.6-22.4%); NORM -18.0% (-13.5-19.7%)), global radial strain (GRS; CON 42.2% (30.3-70.5%); ECC 50.0% (39.2-60.0%); NORM 40.6 (29.9-57.0%)) and twist (CON 14.9° (3.7-25.3°); ECC 12.5° (6.3-20.8°); NORM 13.2° (8.8-24.2°)). Concentric and eccentric remodelling was associated with alterations in temporal myocardial strain and strain rate as compared to normal geometry athletes. CONCLUSION: Physiological concentric and eccentric remodelling in the athletes heart is generally associated with normal LV function; with concentric remodelling associated with an increased EF. Physiological concentric and eccentric remodelling in the athletes heart has no effect on peak myocardial strain but superior deformation and untwisting is unmasked when assessing the temporal distribution.
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Johnson et al. (2023) conducted a cross-sectional in Athlete's heart (n=45). Concentric and eccentric left ventricular remodelling vs. Normal left ventricular geometry was evaluated on Peak myocardial strain and strain rate. Physiological concentric and eccentric remodelling in male athletes had no effect on peak myocardial strain compared to normal geometry, though temporal distribution revealed superior deformation.
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