Author + information
- Dmitry Blumenkrants,
- Mark Berlacher,
- Reginald E. Dunn,
- Richard Kovacs,
- Harvey Feigenbaum,
- Andrew Tucker,
- Andrew Lincoln and
- Michael Emery
Background: Variability in genetics, size & training among American style football (ASF) players translates into differences in left ventricular (LV) structure & function. This may be reflected in LV global longitudinal strain (GLS) & basal longitudinal strain (BLS).
Methods: 1,119 athletes with adequate strain quality images from the 2012-15 National Football League combine were analyzed using American Society of Echocardiography guidelines. Strain values where obtained using speckle tracking (GE Vivid Q, 45 to 70 fps). Athletes were grouped into classes of LV geometry based on LV mass index (LVMI) & relative wall thickness (RWT). Linear models were used to assess differences in GLS between player positions, race, & types of LV remodeling.
Results: The majority of players (62%) had normal LV geometry. Mean GLS was 19.1% (95% CI 18.9-19.2) & BLS was 16.2% (95% CI 16.1-16.3). Difference in strain values by LV geometry are illustrated in the Table. Linemen (offense & defense) had the lowest average GLS 18.2% (95% CI 18.0-18.5) & BLS 15.5% (15.3-15.7) which was significantly less than other players (p<0.01).
Conclusions: The average GLS was normal (>17%) in this sample of ASF players. Lower BLS & GLS were seen in those with concentric LVH but remained normal regardless of LV remodeling type. Although linemen were noted to have statistically lower GLS compared to other positions they were still within normal limits. This may help differentiate athlete's heart remodeling from a cardiomyopathy.
Moderated Poster Contributions
Non Invasive Imaging Moderated Poster Theater, Poster Hall, Hall C
Saturday, March 18, 2017, 1:30 p.m.-1:40 p.m.
Session Title: Hearts and Soles: Multimodality Imaging in Athletes
Abstract Category: 31. Non Invasive Imaging: Sports and Exercise
Presentation Number: 1225M-11
- 2017 American College of Cardiology Foundation