Logan Steele
The transversus abdominis (TVA) muscle is a deep abdominal muscle that runs horizontally around the abdomen, much like a natural corset. It is an important core muscle that is responsible for stabilising the lumbar spine and supporting the pelvis and internal organs. Weak TVA muscles can lead to lower back pain, pelvic floor dysfunction, and instability in the spine and pelvis. Therefore, strengthening the TVA muscle through specific exercises can help alleviate these issues and improve core stability.
| Characteristics | Values |
|---|---|
| Name | Transversus Abdominis (TVA) |
| Alternative Names | Transverse Abdominis, TVA muscle |
| Muscle Group | Abdominal muscles |
| Muscle Layer | Deepest layer of abdominal muscles |
| Muscle Position | Runs between the ribs and the pelvis, horizontally from front to back |
| Muscle Appearance | Known as the "corset" muscle |
| Muscle Function | Stabilizes the lumbar spine, holds internal organs in place, supports the pelvis |
| Muscle Activation | Bracing, hollowing |
| Muscle Exercises | Abdominal drawing in maneuver (ADIM), side-bridge, quadruped exercises, side plank, plank |
| Muscle Weakness | Potential cause of lower back pain, abdominal wall bulge, increased lordosis in the spine |
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What You'll Learn
TVA muscle weakness and back pain
The transversus abdominis (TVA) is the deepest abdominal muscle and an important core muscle. It is also referred to as the body's natural "corset" muscle. The TVA wraps around the abdomen, creating a "cinching" effect, and is responsible for maintaining proper placement of the abdominal contents. It also helps support the lower back and the lumbopelvic region during movement, in concert with other core muscles.
Weak TVA muscles may cause lower back pain. If the TVA muscles are weak, the abdominal wall will begin to bulge forward, and the pelvis may rotate forward, increasing lordosis (inward curvature) in the spine. This can be caused by pregnancy, weight gain, or lack of exercise. Weak TVA muscles can also lead to lumbar instability. Typical signs of a weak TVA are toned abdominals above the navel but a bulge below it. The client may experience an inability to hold in their stomach after a large meal or when gassy, and low back fatigue after prolonged standing or walking.
To alleviate lower back pain, specific exercises can be added to strengthen the TVA muscle. The side plank (side bridge) and regular plank are the best exercises for activating the TVA indirectly. To engage the TVA, focus on drawing in your lower abdominals while paying attention to your pelvic floor muscles and breath. The bracing technique is an isometric contraction of the TVA, where you contract the muscles of the abdomen and hold them tight without movement. To perform this technique, imagine that you are getting ready for a punch to your belly or preparing to lift a heavy object. The goal is to tighten the muscles without sucking in or expanding your abdomen. Hold this position for 6 to 10 seconds, release, and repeat.
Hollowing is another technique to activate the TVA. To perform this technique, contract your abdomen and pull your belly button back toward your spine to make your abdomen as small as possible. Once you've completed this movement, maintain an isometric hold of this compressed position for 6 to 10 seconds. Release and repeat.
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TVA and pelvic floor muscles
The transversus abdominis (TVA) muscle is the deepest abdominal muscle, wrapping around the trunk from front to back. It is responsible for maintaining the placement of abdominal contents and supporting the lower back. The TVA also increases intra-abdominal pressure, which helps support internal organs and viscera, and aids expulsive forces such as coughing and defecation.
A weak TVA can cause the abdominal wall to bulge forward, the pelvis to rotate forward, and increase lordosis (inward curvature) in the spine. This can lead to lower back pain and lumbar instability.
To strengthen the TVA, it is important to perform specific exercises that engage this muscle directly. The TVA works in harmony with the pelvic floor muscles to create a strong foundation for the pelvic organs. Together, they help prevent issues like incontinence and pelvic organ prolapse, particularly in women.
One way to activate the TVA is through "bracing", which involves contracting the abdominal muscles and holding them tight without moving. Another technique is "hollowing", which involves sucking in and compressing the abdomen.
When activating the TVA, it is important to focus on drawing in the lower abdominals while paying attention to the pelvic floor muscles and breath. This can be done through exercises such as the abdominal draw-in maneuver, which involves laying on the back with bent knees and pulling the belly button down towards the floor without holding the breath.
The side plank and regular plank are also effective exercises for activating the TVA indirectly.
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TVA and pregnancy
The transverse abdominal muscle (TVA), also known as the transverse abdominis and transversus abdominis muscle, is a muscle layer of the front and side abdominal wall. It is layered below the internal oblique muscle and wraps around the spine for protection and stability.
During pregnancy, the TVA supports the baby. The fibres act like a corset, pulling the core in from all angles. The TVA, together with the pelvic floor, keeps the belly from dropping. They also work together with the uterus to push the baby out during delivery. Keeping these muscles strong and flexible during labour can ease the baby's entry into the world.
Pregnant women can perform exercises to strengthen their TVA. However, it is important to note that core exercises should change in the third trimester. Traditional ab exercises should be avoided, and functional exercises that focus on the transverse abdominals and pelvic floor should be prioritised. For example, it is safe for pregnant women to lie on their backs for short periods, but for 10-20% of pregnant women, doing so after 20 weeks of gestation can cause low blood pressure. One exercise that can be done in this position is to tighten the abdominals, drawing the navel in towards the spine, and then switching the arms overhead.
Other exercises that can be done during pregnancy include the dead bug and the cat-cow. The dead bug is performed by lying on the back with bent knees and feet off the floor. The pelvis is then tilted, and the right leg is lowered while extending towards the floor, and the left arm is brought up and over the head until it is parallel to the floor. This position is held for 2-3 seconds. The cat-cow is a yoga exercise where the body is in a quadruped position with a flat back. The movement begins by inhaling and arching the back while drawing the head up towards the sky. This position is held for 2-3 seconds, and then the movement is reversed by exhaling and rounding out the back while tucking the chin to the chest.
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TVA activation exercises
The transversus abdominis (TVA) is a deep abdominal muscle that wraps around the abdomen, creating a "cinching" effect, much like a natural "'corset' muscle". It is responsible for stabilising the spine and supporting the lower back and core muscles. Weak TVA muscles may lead to lower back pain, and so specific exercises can help to strengthen this muscle and alleviate pain.
Basic Abdominal Draw-in Maneuver
Lay on your back with knees bent and feet flat on the floor. Place your fingers on the muscles just below your belly button, and contract those muscles by pulling them down and away from your fingers. Pull your belly button down toward the floor without holding your breath.
Core Bracing
This technique involves breathing deeply and tightening your belly area as you exhale, as if you're about to receive a punch to the stomach. This is an isometric contraction of the TVA, where you contract the muscles of the abdomen and hold them tight without moving.
Hollowing
This technique involves sucking in and compressing the abdomen. Contract your abdomen and pull your belly button back toward your spine to make your abdomen as small as possible. Hold this compressed position for 6 to 10 seconds, release, and repeat.
Plank
The side plank (side bridge) and regular plank are exercises that can help activate the TVA indirectly.
It is important to note that learning how to engage the TVA muscle takes practice, and it is crucial to have a strong core to protect your spine and surrounding muscles from injury.
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TVA bracing and hollowing techniques
The transversus abdominis (TVA) is a deep abdominal muscle that wraps around the abdomen, creating a "cinching" effect similar to a natural "corset". It is one of the main core stabilising muscles of the lumbar spine and is responsible for maintaining proper placement of the abdominal contents, supporting the lower back, and helping to support the internal organs.
Weak TVA muscles can be a reason for lower back pain and may cause the abdominal wall to bulge forward. Bracing and hollowing are two techniques used to activate the TVA muscles for improved core stabilisation.
Bracing Technique
Bracing refers to an isometric contraction of the TVA, where you contract the muscles of the abdomen and hold them tight without movement. This technique is similar to tightening your abs in preparation for a punch to the belly or when lifting a heavy object. The goal is to tighten the muscles without sucking in or expanding your abdomen. To perform this technique, maintain an isometric hold for 6 to 10 seconds, release, and repeat several times.
Hollowing Technique
Hollowing is a technique to activate the TVA by sucking in and compressing the abdomen. To perform this technique, contract your abdomen and pull your belly button back toward your spine, aiming to make your abdomen as small as possible. Once you've achieved this position, maintain an isometric hold for 6 to 10 seconds, release, and repeat.
While both techniques are effective, bracing has been found to be superior in stabilising the lumbar spine when compared to hollowing. Bracing results in the contraction of the entire core muscle group, particularly the TVA.
Additional Exercises
After mastering the bracing and hollowing techniques, you can progress to other exercises that engage the TVA and surrounding abdominal muscles. The side plank (side bridge) and regular plank are considered excellent exercises for activating the TVA indirectly.
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Frequently asked questions
TVA stands for Transversus Abdominis. It is a deep abdominal muscle that wraps around the abdomen horizontally, similarly to a corset.
The TVA muscle acts as a stabiliser for the entire low back and core muscles. It helps to maintain normal abdominal wall tension and increase intra-abdominal pressure, which helps support internal organs. It also helps to expel air during forced exhalation.
A weak TVA muscle can result in lower back pain, pelvic floor dysfunction, and tight hips. It can also lead to a bulging abdomen.
