The study included nearly 800 people in Northern Ireland who were born at full-term (37 to 42 weeks) and had their cardiorespiratory fitness assessed at ages 12, 15 and 22.
Each extra week of full-term pregnancy was associated with a 14 percent reduced risk, the Australian researchers reported.
“We believe that earlier births — even within the at-term range — may interrupt normal development and lead to permanent changes of tissues and organs, thereby affecting cardiorespiratory fitness,” study lead author Isabel Ferreira said in a journal news release.
“As such, recent trends towards deliveries at shorter gestational lengths within the at-term period are worrisome,” added Ferreira, an associate professor at the University of Queensland.
Cardiorespiratory fitness refers to the ability to supply oxygen to muscles during physical activity. It also affects metabolic and heart health throughout a person’s life. Previous research has found that people who were born prematurely have lower cardiorespiratory fitness levels.
“Health care providers and mothers should be informed of the lifelong health risks that early term deliveries may have on their offspring and refrain from these [e.g., scheduled caesarean sections or induced labor] unless there is a medical indication to anticipate deliveries,” Ferreira suggested.
— Robert Preidt
Copyright © 2017 HealthDay. All rights reserved.
SOURCE: Journal of the American Heart Association, news release, Sept. 27, 2017
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