Best kind of exercise for reducing fat around the heart

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fat around the heart

In a recent study, researchers investigated the effects of exercise on fat around the heart.

Cardiovascular disease, an umbrella term for many diseases involving the heart and vascular system, is responsible for the most deaths worldwide. A major cause of cardiovascular disease is obesity, which can result in fat deposits around the heart. Fat around the heart is found in two places: the pericardium, the cavity surrounding the heart, and the epicardium, the layer of tissue closest to the heart. In a recent study, researchers hypothesized that endurance and resistance exercise would be an effective method to reduce fat around the heart. The results of this research were published in JAMA Cardiology.

To be included in the study individuals had to be at least 18 years old, inactive, and have a waist to height ratio greater than 0.5, indicating abdominal obesity. Various cardiac comorbidities excluded individuals from participating. The participants were randomly assigned to one of three groups: endurance exercise, resistance exercise, or no exercise. Before and during the trial, participants had cardiorespiratory and anthropomorphic measures taken, as well as cardiac fat measurements. Three times per week for 12 weeks participants in the endurance exercise groups used a stationary bicycle to perform 45-minute high-intensity interval training, while those in the resistance group completed repeated medium load exercises for 45 minutes.

Endurance and resistance exercise reduce fat around the heart

Epicardial fat was reduced in participants in the endurance and resistance exercise groups by 8g and 9g respectively, whereas there were no changes among the no-exercise group. Compared to the no-exercise group, pericardial fat was reduced by 34g in the resistance exercise group, but no significant changes were observed in the endurance exercise group. Both cardiorespiratory fitness and muscle strength were increased in the resistance exercise group, whereas in the endurance exercise only cardiorespiratory fitness increased, and no changes were observed in regards to muscle strength.

Overall, both resistance and endurance were shown to reduce epicardial fat, but only resistance training reduced pericardial fat. Unfortunately, the small sample size (39 participants) limits the ability to generalize the results, and thus additional research including more participants would provide better insight into how exercise affects fat around the heart.

Monica Naatey-Ahumah, BSc

*As an Amazon Associate, Medical News Bulletin earns from qualifying purchases. The sales made through these links help to cover the costs of maintaining this online publication. Ads are not endorsements of products, always consult your healthcare provider before taking any medications or supplements, changing your diet, or using any health-related products.

Reference: Christensen, R.H., Wedell-Neergaard, A.S., Lehrskov, L.L., Legaard, G.E., Dorph, E., Larsen, M.K.,…& Ellingsgaard, H. (2019). Effect of Aerobic and Resistance Exercise on Cardiac Adipose Tissues Secondary Analyses From a Randomized Clinical Trial.
JAMA Cardiology. https://doi.org/10.1001/jamacardio.2019.2074.

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