Impact of different types of exercise on your heart

General discussions about getting and staying fit that don't relate directly to your indoor rower
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Impact of different types of exercise on your heart

Post by Ombrax » April 4th, 2019, 8:17 pm

Rowing is mentioned in passing:

"While almost any exercise can prompt remodeling of the left ventricle over time, different types of exercise often produce subtly different effects. A 2015 study found, for instance, that competitive rowers, whose sport combines endurance and power, had greater muscle mass in their left ventricles than runners, making their hearts strong but potentially less nimble during the twisting that pumps blood to muscles."

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Re: Impact of different types of exercise on your heart

Post by johnlvs2run » April 5th, 2019, 1:24 am

Comparing swimmers and runners:
While all of the athletes’ left ventricles filled with blood earlier than average and untwisted more quickly during each heartbeat, those desirable changes were amplified in the runners. Their ventricles filled even earlier and untwisted more emphatically than the swimmers’ hearts did.

In theory, those differences should allow blood to move from and back to the runners’ hearts more rapidly than would happen inside the swimmers’.

Since swimmers exercise in a horizontal position, their hearts do not have to fight gravity to get blood back to the heart, unlike in upright runners. Posture does some of the work for swimmers, so their hearts reshape themselves only as much as needed for the demands of their sport.
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