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Therefore, athletes with AHS commonly have lower resting heart rates than nonathletes. [medical citation needed] The heart becomes enlarged, or hypertrophic, due to intense cardiovascular workouts, creating an increase in stroke volume, an enlarged left ventricle (and right ventricle), and a decrease in resting heart rate along with irregular ...
Cardiomegaly can be classified by the main enlarged location of the heart, and/or by the structure of the enlargement. Specific subtypes include athletic heart syndrome, which is a non-pathological condition commonly seen in sports medicine in which the heart is enlarged, and the resting heart rate is lower than normal.
Ventricular hypertrophy (VH) is thickening of the walls of a ventricle (lower chamber) of the heart. [ 1 ] [ better source needed ] Although left ventricular hypertrophy (LVH) is more common, right ventricular hypertrophy (RVH), as well as concurrent hypertrophy of both ventricles can also occur.
However, oftentimes lower heart rates can be totally normal, and a well-trained athlete can have a normal heart rate in the 50s or as low as 40 without any cause for concern, he notes.
A ventricular septal defect is a hole between the two lower chambers of the heart Tricuspid atresia. The tricuspid valve is located between the right atrium and the right ventricle.
A lower resting heart rate or slower heartbeat will fill the ventricles/heart better and allow for more of a forceful contraction of blood out to the rest of the body, says Dr. Weinberg.
Other inherited causes of left ventricular hypertrophy may include Fabry disease, Friedreich's ataxia, and certain medications such as tacrolimus. [5] Other considerations for causes of enlarged heart are athlete's heart and hypertension (high blood pressure). [10]
It is one aspect of ventricular remodeling. While LVH itself is not a disease, it is usually a marker for disease involving the heart. [3] Disease processes that can cause LVH include any disease that increases the afterload that the heart has to contract against, and some primary diseases of the muscle of the heart.