Powerlifting increases the demand on your heart muscle to pump blood throughout your body. The heart typically responds to by increasing the size or thickness of your ventricles -- chambers that pump blood to your lungs and throughout your body. This adaptive response is known as concentric ventricular hypertrophy. Endurance and strength-trained athletes commonly experience this type of cardiac adaptation as a result of their training.
LEFT VS. RIGHT
Your left ventricle is responsible for pumping blood from your heart to the rest of your body, while your right ventricle pumps blood to your lungs. Because powerlifters have an increased demand for blood to reach their muscles, left ventricular hypertrophy is seen more commonly. Endurance athletes tend to experience a combination of left and right ventricular changes. This is due to a combined demand for oxygenated blood to reach their lungs and muscles.
CONCENTRIC VS ECCENTRIC
Concentric hypertrophy is an increase in ventricular wall thickness with unchanged chamber size in response to elevated pressure load. Eccentric hypertrophy is characterized by an increase in wall thickness and chamber size in response to elevated output demand. Endurance athletes are more likely to experience eccentric hypertrophy. On the other hand, strength-trained athletes experience concentric hypertrophy due to the increased blood pressure response of weight lifting. Heavy resistance exercise shows a large increase in blood pressure, according to a study published in the October 2000 issue of the journal "Circulation."
PHYSIOLOGICAL VS. PATHOLOGICAL
Physiological concentric hypertrophy is your heart's way of adapting to healthy increased demands on cardiac output, such as exercise. This is different from changes that occur in response to injury or stress. Pathological ventricular enlargement can occur due to conditions such as chronic hypertension or ventricular valve disease. This type of stress-induced hypertrophy is associated with heart disease and can result in ventricular failure, or impair diastolic function.
STEROIDS AND HYPERTROPHY
Two-thirds of elite U.S. powerlifters have reported using steroids to enhance their performance, according to a review published in the May issue of the journal "Heart." Strength-trained athletes who use steroids appear to exhibit an elevated pressure burden that leads to significant left ventricular hypertrophy. This type of growth can negatively impact your cardiac health. However, more rigorous studies are needed to determine the exact cardiac effects of steroid use.
Originally posted here: https://steemit.com/life/@hnub/power-lifting-and-concentric-ventricular-hypertrophy
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