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Breast‐feeding and maternal cardiovascular function
Author(s) -
Mezzacappa Elizabeth Sibolboro,
Kelsey Robert M.,
Myers Michael M.,
Katkin Edward S.
Publication year - 2001
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/1469-8986.3860988
Subject(s) - heart rate , oxytocin , blood pressure , stressor , psychology , cold pressor test , cardiac function curve , medicine , bottle , endocrinology , physiology , cardiology , heart failure , neuroscience , mechanical engineering , engineering
Two studies examined the effects of breast‐feeding on maternal cardiovascular function. In the first experiment, groups of breast‐feeding and bottle‐feeding women were compared on preejection period (PEP), heart rate (HR), cardiac output (CO), and total peripheral resistance (TPR) recorded for 1‐min periods before and during standard laboratory stressors. Compared with bottle‐feeders, breast‐feeders had higher CO throughout the session, and greater decreases in CO and increases in TPR during cold pressor. In the second experiment, HR and blood pressure (BP) were compared before and after one breast‐feeding and one bottle‐feeding session in a within‐subjects design. Both feeding methods increased BP but decreased HR, and systolic BP was higher for the breast‐feeding than the bottle‐feeding condition. Both studies support the notion that breast‐feeding alters maternal cardiovascular function, possibly through the actions of oxytocin.