Friday, November 6, 2015

Two Phases of Breastfeeding

According to researchers, babies’ instinctual sucking switches between a first and second phase to optimize the milk output from a mother’s breast.[1]

The first phase is termed the Stimulation Phase, with the purpose of “stimulating” the breast for output. When a baby first attaches to his mother’s breast he will suck with a faster pace and quicker intensity to pull the nipple out and commence the milk flow.

Once this stimulation is rewarded with milk flow, a baby switches to the second phase, termed the Expression Phase. During this phase, the “letdown” has occurred, milk is flowing to her (or more precisely, being “expressed” by her) and she sucks with a slower but deeper rhythm.


Pumps designed with a 2-Phase system are generally programmed with a brief preliminary “Stimulation Phase” (approximately two minutes) during which the pull mimics a baby’s quicker, “stimulating” suckling, followed by a longer, deeper second “Expression” phase.

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Byram Healthcare offers a variety of breast pumps to suit the differing needs and preferences of discerning mothers. Here’s a quick rundown of the models and their respective “2-Phase” systems or accommodations.  

Medela leads the breast pumping industry in dual phase technology. The Medela Pump In Style Advanced provides “2-Phase Expression technology with one-touch let-down button” that is shown to “produce more milk in less time when pumping at Maximum Comfort Vacuum in the expression phase.”[2]

The Spectra 9 Plus Advanced also features a 2-phase system, termed the “letdown” (or massage) and “expression” modes.

The Ameda Purely Yours Ultra does not feature pre-programmed “Stimulation” and “Expression” phases. However, with two separate controls for speed and suction you can determine and regulate these different phases manually.

The Freemie Freedom Hands Free pump does not feature pre-programmed “Stimulation” and “Expression” phases. However, it provides a sensitive power dial allowing the user to incrementally personalize the suction power throughout a pumping session.

The Hygeia Q Model does not feature a pre-programmed “Stimulation” and “Expression” phases. However, like the previously mentioned Ameda model, this breast pump features separate dials for speed and suction, allowing a mother to determine her two phases manually.
Every woman’s preferences vary hence the variation in the pumps we offer through Byram Healthcare. Whether you opt for a breast pump with a designated two-phase system or one with more manual control, it’s helpful to know the biology of the two phases and pump accordingly.

Always begin a pumping session with a faster pace and quicker intensity to “stimulate” “letdown.”  At the end of a pumping session as you notice the milk expression has ceased, you might experiment from time to time by switching back to a “stimulation”-like phase. It’s quite common for moms to experience a second “letdown” and collect more milk, if properly “stimulated.”[3]

*This blog is informed by our resident moms-in-the-know and not by medical professionals. This blog is intended to share the wisdom of experienced moms but never to replace the advice and insight of your doctors. Always consult proper and licensed medical professionals when making any decisions about your health and the health of your children. 


Sources
www.medelabreastfeedingus.com
www.thebreastfeedingcenter.com





[1] http://www.medelabreastfeedingus.com/why-medela
[2] http://www.medelabreastfeedingus.com/products/573/pump-in-style-advanced
[3] http://thebreastfeedingcenter.com/files/48971843.pdf

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