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Heart Failure, Left Ventricular Assist Devices, and Isometric Exercise.

0 2 years ago

I have had a couple of people reach out to me lately regarding heart failure, Left Ventricular Assist Devices, and Isometric exercise.

(Please do not take any of this as medical advice -consult your medical provider if necessary)

The controversy around the continued promotion of cardiovascular training over isometric muscle training for heart health needs to be openly discussed without bias.

First, here is an excellent article from Standford Health Care to help educate you on what an LVAD is.

Second, an article from Nature discusses the Relationship between muscle strength and rehospitalization in ventricular assist device patients. Sadly, the authors do not mention “ISOMETRIC” LEG STRENGTH in the report. Considering isometric muscle strength was the measured variable. This exclusion is grossly negligent. It is vital to understand that dynamic and isometric strength are NOT the same. (see photo below)

Thirdly, this article from the American Journal of Physiology showcases the different stimulus-specific remodeling of the left ventricle in resistance-trained, endurance-trained, and control subjects.

The short story is that the omission of isometric strength training exercises harms heart health.

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