Transverse Abdominis Workouts

The transverse abdominis (TrA) muscle is the deepest of the four muscle groups that make up the abdominals. The muscle acts as a girdle and plays an important role in trunk stability, according to research published in April 2015 in the Journal of Ergonomics. It's also theorized that dysfunction and poor recruitment of the TrA may contribute to low back pain, though the research is still limited. Pilates is an effective form of exercise to strengthen this muscle, according to a study published in June 2015 in the Journal of Exercise Rehabilitation. However, other bodyweight transverse abdominis exercises can also help strengthen the muscle.

Bridging is a great ab workout.
Credit: Antonio_Diaz/iStock/Getty Images

1. Abdominal Hollowing

Perform this move by lying on your back and drawing in your lower abdomen below your navel. Avoid moving the back, pelvis or upper abdomen, all the while continuing to breathe.

Many common abdominal exercises don't specifically target the TrA. However, you can increase the activation of this muscle by hollowing your abdomen and maintaining this position while doing other ab exercises, turning almost any of these moves into transverse abdominis exercises.

2. Plank

Begin the plank exercise by lying on your stomach. After hollowing your abdomen, lift your body up onto your elbows and toes. Do not allow your back or pelvis to tilt as you plank.

In addition, your spine should remain flat and your buttocks should stay in line with your body. After holding this position for five to 10 seconds, slowly lower back to the ground.

3. Supine Leg Extension

Perform this exercise while lying on your back with your knees bent. After drawing in the lower abs, straighten one leg and hold it about 4 inches off the ground. Raise the opposite arm above your head.

Complete this without holding your breath or losing the abdominal hollowing. Hold the leg in this position for one to two seconds, then slowly return it to the starting position before repeating the movement with the opposite leg.

Read more: Higher Level Core Exercises

4. Glute Bridge

Complete the glute bridge exercise by lying on your back with your knees bent. After hollowing your abdomen, lift your buttocks off the ground. It is important to continue breathing throughout the exercise. After holding the position in the air for 1 to 2 seconds, slowly lower your buttocks back to the ground.

5. Quadruped Lifts

Do this exercise, also known as the bird dog, on your hands and knees. After hollowing the abdomen, slowly lift one arm and the opposite leg into the air. The back and pelvis should not tilt as you move your limbs.

After holding this position for one to two seconds, return the arm and leg to the starting position and repeat with the alternate arm and leg.

6. Russian Twist

To do a Russian twist, start seated. Raise your feet several inches off the ground and lean back slightly. Twist from side to side, keeping your core tight. Your aim should be to hit your knuckles to the floor on each side with each rep.

Exercise Parameters

In order to improve the muscular endurance of the transverse abdominis muscle, perform two to four sets of 15 to 20 repetitions of each of these transverse abdominis exercises two to three times per week.

Read more: 21 Sit-Up Variations You Won't Totally Hate

None of the exercises should be painful to perform. Consult a medical professional with any questions or concerns prior to beginning any exercise regimen.

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