Components of the Inner Core and Pelvic Floor Health

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Components of the Inner Core and Pelvic Floor Health

Your core is probably the part of the body that undergoes the most change in pregnancy, birth and postpartum. Yet, it gets little to no attention.

Most people think of the core as being the six-pack and the low back; they are correct, to an extent, but let’s look a little bit deeper than that.

Your core is made up of a number of muscles that work together to support the spine and pelvis. We are going to look now at the inner core, or what we like to call “The Core Four.”

The Core Four

The Core 4 is made up of, you guessed it, four key players: the breathing diaphragm, the transversus abdominis, the multifidus and the pelvic floor.

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This team is designed to work together in anticipation of your every move. That’s right, they should anticipate and prepare you for the task at hand before you even move!

The function of the core is directly tied to the breath and the breath is directly tied to posture and alignment. If your alignment is off or you are standing/sitting with poor posture, the breath is not optimized and the function of your core may be hindered.

Pregnancy and childbirth greatly affect your posture and alignment, and therefore, affect your breathing and core function. Doing preventive exercise during pregnancy is important to help minimize these effects and keep your core strong and functional.

The coolest thing is that many of the preventive exercises you do during pregnancy can also help restore your core postpartum!

Let’s look a bit more closely at the Core 4, so you gain a deeper understanding of how it works, how it supports you and your baby and how you can support it!

The Diaphragm

The diaphragm is a sheet of skeletal muscle that separates the heart, lungs, and ribs (the thoracic cavity) from the abdominal cavity.

The diaphragm is convex in shape and is involved in breathing – it contracts and relaxes with each inhale and exhale. As you inhale, the diaphragm concentrically contracts, as it lowers, pulling air in. Think of a cylinder filling up with air that expands as air moves in.

As you exhale, the fibers of the diaphragm eccentrically contract (lengthen) as it rises back to its resting state, emptying the air from the cylinder. In a well-functioning core, the pelvic floor will contract and lengthen along with the diaphragm during each inhalation and exhalation.

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The Transversus (and Other Abdominals)

The deepest abdominal layer is the transversus abdominus which runs around you like a corset. It is a key muscle for pushing your baby out. It also plays an important role in stabilizing the low back and pelvis before movement - yes, before!

It is also one of the keys to healing diatasis recti. A good point to remember is that the transversus abdominis co-contracts with the pelvic floor in an ideal functioning core; that means that the pelvic floor is important in healing the abdominal wall too!

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The Pelvic Floor

Your pelvic floor is a group of muscles (three layers) that run from the pubic bone to the tailbone, as well as the sitz bones.

The pelvic floor is a highly vascular, as well as a highly innervated, part of the body. The nerves, muscles, and connective tissue work to -

  • keep you continent,
  • to provide support to the internal organs (the bladder, the uterus and the rectum),
  • to stabilize the spine and pelvis, and
  • to contribute to your sexual satisfaction. It also plays a major role in childbirth.

Because it is not visible, the pelvic floor is rarely thought about until there is a problem. Problems will often show up during pregnancy or after childbirth in ways such as incontinence, pelvic pain, organ prolapse, sexual challenges, back pain and/or hip pain.

These problems, also known as pelvic floor dysfunction, can develop from a variety of reasons such as overuse (muscles that don’t relax and that are tight and weak as a result), under-use (muscles that lack tone and are weak), injury (perineal injury or nerve injury from birth, sports, accidents), or from poor posture and alignment.

The pelvic floor is a key part of the inner core - that's right – it is part of the core! Who knew?! The pelvic floor is the foundation of your core and deserves a lot more attention than it gets!

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The Multifidus

The multifidus muscles are a group of short spinal muscles that are located on both sides of your spine, and run from your tailbone, or sacrum, all the way to your neck. They function to support and protect your spine.

A weakness in this muscle group contributes to chronic, dull, low back pain. In turn, pain can inhibit these muscles from functioning, so they become weak, creating a vicious pain-weakness cycle.

The multifidi are often overlooked in strengthening programs, which can result in the muscles needing to work extra hard to avoid back injury, and to compensate for weak abdominals.

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Training the Core

The Core Breath is always a starting point in terms of training the core – it works all of the parts of the inner core and establishes or re-establishes the synergy you are looking for in your foundation.

Lie on your back, with your knees bent, feet flat on the floor. Try to find your ideal alignment, feel your tailbone is in line with the top of your head.. Try to feel the natural curves of your back, a little hollow at the low back, ribcage resting, head resting on the floor/mat. Sometimes a small pad under the head or a pillow under the knees helps, you should feel relaxed.

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Exhale: breath out through your mouth for a count of 8, imagine you are gently blowing out a candle. You should feel an automatic tensioning of your abdominals, the muscles of your back (especially the low back) and your pelvic floor both tightening and lifting.

Inhale: breath in through the nose, and feel your abdominals, back and pelvic floor expand with a sense of release.

When practicing the Core Breath try to avoid pressing the small of your back to the mat when you exhale or lifting the chin or rib cage when you inhale. Try to keep your shoulders and buttocks relaxed.

Once you have mastered the core breath, you then add it into movement so you can work the core as it should be worked – with movement.

The bridge, a seated march on the ball, squats and lunges are all exercises that can be done with the core breath. These exercises are great, functional ways to get the inner unit firing and working together as a team!

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If you are looking for programs to improve your core, breathing, and your pelvic floor, please reach out and one of our professionals will be happy to assist you.