Why Loa is easier than ROA

Why LOA Is Easier Than ROA

It is commonly known that LOA is the position preferred by babies when they have a choice. What is special about the left side?
By the 38th week of pregnancy, there is more space on the left side of mother’s abdomen for baby’s long back. Why? Well, about now, the uterus develops a lean to the right at the top, and a twist to the left at the bottom (google uterine right obliquity and dextro- rotation ) The reason is probably that there are more abdominal contents on the left side pushing the uterus sideways. Think of the curve of a banana—the inside curve is shorter, and so less comfortable for baby.
During a second or later pregnancy, the uterine lower segment is softer and rounder, so some babies do choose to lie as ROA, though there is less space on that side.
As long as his/her back stays toward mother’s front, labour will proceed steadily as with LOA.

There are some interesting ideas to be found on such sites as
Spinning-babies.blogspot.com /2013/12/course-of-fetal-position-changes.html

Why Are Other Positions Less Favourable?

Why Are Other Positions Less Favourable?

When a baby tries to enter his/her mother’s pelvis from any head down position apart from O.A., or head down, back forward between mother’s hip and umbilicus, he is faced with a major obstacle. It can be negotiated, but this usually means a late start to labour, and a very slow birth process.

What is the problem?

First, he will be too upright. He will be facing forward, instead of backwards. Instead of having his back in the spacious abdomen, it will be at an angle toward mother’s spine and her right hip. His shoulder will almost certainly be on the other side of her spine, and has a major obstacle to pass when he tries to turn. This is the sacral prominence— the large bone at the top rear of the pelvis. To move into the pelvis, he must slide between mother’s pubic bone and her sacral prominence. To do this, he must bring his bottom well forward, which is almost impossible until labour contractions tilt the top of mother’s uterus forward.
If he does manage to enter, he must come down in a straight line—should he try to use the sacral curve, he will end up coming face first. This is not a good position to be in.
He is also unable to curl his head onto his chest without bumping into mother’s pubic bone. Therefore, babies in Occipito Posterior seldom begin the journey in an effective position.

What Else is Different?

Firstly, the pressure from “practice” contractions is about 2-3 cms in front of the maternal cervix into the lower uterine segment. Thus, the hormone signals that cause the cervix to soften and shorten are not as effective. This often leads to the so-called “false labours” as the baby tries to move himself into a better position.
Then baby’s attempts are often painful, as he rubs against the pubic bone. These sessions may last several hours, and are very tiring.
If labour is not induced it usually starts with the membranes rupturing, and no contractions for some time. They will start when the uterus has regained it’s “tone”—like a balloon losing its air, the uterine walls lose their tension when the liquor drains away
Labour will be slower than for an O.A. positioned baby, but we will discuss this in a later post.

The Amazing Foetal Skull

When we look at a newborn baby’s head, it seems impossible that it can fit through the mother’s pelvis. When we look again, we see just how cleverly it is designed.
There are many small bones, layered between an inner and outer layer of membrane. In the upper skull or vault, they are made in such a way that the front ones and the back one can slide under the side pair and one of that pair can slide under the other. This mechanism works well when baby is head down, back forward (vertex LOA). If baby is in any other position—e.g. facing forward (ROP) he must change the shape of the side bones to make his head smaller. That is he develops the “sugar loaf” shaped head.
This process takes much more time than simply folding along the joins, which is one reason O P labours usually last much longer.
By describing both as “moulding” we have missed the most important point. Nature, evolution, God, whatever has designed the baby and the process to be as simple and safe as possible. It is our duty to discover the master plan, and help as many mothers and babies as possible follow it.
This is what we teach with our books, “Understanding and Teaching Optimal Foetal Positioning”, for professionals and “How Will I be Born” for parents –to-be.

Why and How Optimal Foetal Positioning Works

Why Human Babies Should Be Head Down Back Forward For Birth
Why Human Babies Are The Only Ones To Face The Mother’s Spine For Birth.

Because humans walk upright on two legs, their pelvis has been modified to support the trunk (body). Other placental creatures need the pelvis only for somewhere to attach the hind legs. Their babies have a straightforward path. They have their back to mother’s, and their front legs stretched forward, with their head and neck along their legs. First the toes emerge followed by the nose. There is a straight passage through the pelvis into the world. Even the great ape babies are born facing forward.

The human baby has a more complicated path. He is wider from front to back at the top of his head, and from side to side at his shoulders. When he has his back between his mother’s umbilicus and her left flank, he is able to curl forward and fold the bones of his skull along the joins (sutures) to make it smaller.

His mother’s pelvis is wider from side to side at the top. It has a basin in the middle, and is wider from front to back at the bottom. At the base of the lumber spine, we find a large, strong bone called the sacral prominence. This protrudes into the pelvic space and proves an obstacle to a baby who is not able to curl forward. The rest of the sacrum and coccyx plus the “spines” or side walls of the pelvis form a curved solid support for the body.

How will he fit through?
When his back is to the front, it is quite easy. He turns his head to face mother’s right groin, slides under the sacral prominence, curling tighter and turning until the top of his head is toward her spine as he goes. Now, he should have his shoulders just inside, and lying straight across the top of the pelvis. Once the uterine cervix is open, he moves down through the “spines”, the narrowest part of the pelvis, and brings his head into the world.
A turn to again face mother’s right thigh and his shoulders (posterior first) emerge followed by the rest of his body.
There will be no need for deliberate maternal pushing, as baby and uterus are able to manage his birth unaided.
Some second or later babies may prefer mother’s right side, but most of them choose her left.

What Should I Do?
During the last few weeks of pregnancy maternal posture becomes important if baby is to choose the best (optimal) position for birth. This is where Active Birth preparation belongs. Mother must try at all times to keep her knees and her abdomen apart. Her abdomen should always be lower than her spine. Yes, her back will sag—babies love the lordosis of pregnancy. She will have a bulgy “tummy” and walk with a “duck waddle” but it is only for a short time, and the results are worth it. Baby will be comfortable only in the optimal position.
A baby who has his back toward mothers, has a much more difficult journey. His back and neck are too straight, and he must bring his posterior shoulder past the sacral prominence before he can start to descend. He can’t really curl forward, because he is too close to mother’s pubic bone. Also, until labour is established–when the uterus tilts forward with each contraction, bringing his bottom forward—he will find it hard to enter the pelvis. Thus we get the typical backache labour.
His position means that mother’s nerves and hormones do not receive clear signals to start and continue the birth process.
We can discuss this topic in a later article.

About the shop

Hi, I see that the shop shows “excl postage and packing” . The prices quoted include postage and packaging for my books which will be sent individually. As it is a new site, we are working on the hiccups. Any feedback will be appreciated.
Regards Jean

Introduction

Hi,

I’m Jean Sutton, originator with Pauline Scott, of the term Optimal Foetal Positioning, and I’m trying to master the new ways of contacting people i.e this thing called the internet or “the web”. As I’m nearly 80 years old, it may take a bit longer than I hoped, but please make allowance for my old world. Where I grew up, as a child, there was no such thing as electricity. Oh how our world has changed!.

However much of the knowledge of our predecessors, my Mother, Father, teachers, all those I learnt from, and those they learnt from, is still relevant today.

My major interest in life is helping human babies have a safe, simple birth.If expectant parents, or those caring for them wish, I’ve a store of articles about the many and varied ways babies can make their way out into this world, that could be posted. I will post these and other thoughts as time allows and please freely comment on these posts. Thankyou.

I, along with Pauline Scott, have been teaching Optimal Foetal Positioning for years. I’ve written books for

Parents                 –How Will I Be Born; helped by my son and daughter-in-law

Ante-natal teachers        –Understanding and Teaching Optimal Foetal Positioning with Pauline

Professionals                  –Let Birth Be Born Again, also with Rob and Julie

They will all be available from the shopping cart that is on this site.

As we live in New Zealand, postage is a major cost, and sometimes delays are beyond our reach. However,we will try to respond as quickly as possible to orders for books.