Heart failure & cardiomyopathiesCross-sectional study

Echocardiographic Characterization of Major League Soccer Players

JACC AdvPublication date not resolved

  • cross-sectional echocardiographic study
  • standardized transthoracic echocardiography protocols in accordance with American Society of Echocardiography guidelines

Authors' conclusion

Increased cardiac dimensions and concentric remodeling patterns are frequently present in professional soccer athletes. These findings provide sport-specific echocardiographic reference data that may assist clinicians in distinguishing physiologic athletic remodeling from cardiovascular pathology in elite soccer athletes.

Study context

Population
Male Major League Soccer athletes screened during the 2018 to 2023 seasonsmale Major League Soccer athletes
Participants
1,368 athletes

Main finding

As reported in the abstract

Age

Age range

21 to 39 years

Mean age

25.8 [3.7] years

Observational data: associations, not effects.

Further findings

Race/ethnicity

Black
324/1,368 (23.7%)
Hispanic
392/1,368 (28.7%)
White
623/1,368 (45.5%)

Increased left ventricular (LV) internal diameter in diastole (>58 mm)

Athletes with increased LV internal diameter in diastole
115/1,368 athletes (8.5%; 95% CI: 7.0%-10.0%)

Right ventricular enlargement

Athletes with right ventricular enlargement
262/878 athletes (29.8%; 95% CI: 26.8%-32.8%)

LV mass index

Mean LV mass index
97.2 [16.9] g/m² (95% CI: 96.3-98.1)

LV hypertrophy

Athletes meeting the criteria for LV hypertrophy
187/1,326 athletes (14.1%; 95% CI: 12.2%-16.0%)

LV geometry

Eccentric hypertrophy
127/1,326 athletes (9.6%)
Concentric hypertrophy
60/1,326 athletes (4.5%)
Concentric remodeling
241/1,326 athletes (18.2%)

Original publication

Echocardiographic Characterization of Major League Soccer Players. JACC Adv. doi:10.1016/j.jacadv.2026.102945

Summarised from the published abstract; every number is checked against it