There are so many changes that the body undergoes throughout pregnancy; namely around the abdominal area with the growth of the beloved baby belly bump! In addition to being totally adorable, the growing belly also has physical impacts on the body, such as putting pressure and weight on the pelvic floor muscles, and shifting the body’s center of gravity forward, affecting balance and posture. (Check out our post on Understanding Your Body: Changes to Expect During Pregnancy for more!)
Building and maintaining a strong core throughout your pregnancy is vital for counteracting these impacts. Sufficient core strength can help restore your sense of balance despite the shifting center of gravity, aid in the management and reduction of chronic pregnancy-related pains (particularly those related to posture or spinal and pelvic alignment), prepare the body for labor and delivery, and set yourself up for an improved postpartum recovery.
Disclaimer: Before starting any new exercise routine during pregnancy, it is crucial to consult with your healthcare provider or medical care team. This post is intended for informational purposes only and should not be considered a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or exercise during pregnancy. Your health and the health of your baby are of utmost importance.
Understanding Core Strength
We tend to think of the core as our “6-pack muscles,” the prominent abs you see around the belly button on a chiseled body. However, the core is so much more! The core includes your abdominal muscles (upper, lower, middle, transverse, and oblique abdominals), supporting & stabilizing muscles of the chest and back, lower back muscles, hip flexors, glutes, pelvic floor, and diaphragm.
Having a strong core doesn’t just equate to a 6-pack, but actually indicates a strong foundation for all of the body’s movements to draw from. A strong core supports proper posture and a strong sense of balance. In other words, when your core is strong, your body is better equipped to function smoothly and with less joint or tissue-related pains.
Benefits of Core Strength During Pregnancy
A strong core throughout pregnancy will provide the same benefits of having a solid foundation for all movements and improved posture. Since core strength is so important for a changing pregnant body, there are also additional benefits to enjoy!
Many pregnant people suffer from chronic pregnancy-related pains such as low back pain, neck and shoulder pain, and sciatic nerve and hip pain. When your core muscles are strong, they help support the spine and promote postural alignment throughout the spine, hips, and pelvic area. This can reduce the pains that arise along the neck, shoulders, and back due to the postural misalignment that often occurs as the body’s center of gravity shifts forward.

The pelvic floor is an important part of the core that functions as a net spanning the pelvis and supporting the pelvic organs (such as the bladder and uterus). Strengthening the core also strengthens the pelvic floor; a strength you will rely on and appreciate throughout the pregnancy as the pelvic floor muscles bear the growing weight of your baby and uterus.
A strong core and pelvic floor serves you well not only during the pregnancy, but also during labor and delivery. These muscles are responsible for pushing during contractions in delivery; the stronger they are, the more helpful they’ll be! Lastly, the benefits of a strong core continue into the postpartum period as it helps to promote healing and recovery.
Safe Core Strengthening Exercises for Pregnancy
Although it is safe and beneficial to strengthen the core throughout pregnancy, it should be done with some modifications in mind. When working to strengthen the core, be mindful to strengthen the entirety of the core, not just the “6-pack muscles”!
More specifically, avoid movements that seek to isolate the muscles in the abdominal wall, such as sit-ups or crunches. The abdominal wall stretches and shifts during pregnancy as the growing uterus crowds and pushes on the muscles of the abdominal wall, weakening them and sometimes resulting in diastasis recti, or a separation of the abdominal wall. Overworking these muscles during pregnancy puts you at risk of injury to these and surrounding muscles.
If you have specific questions about appropriate core-strengthening exercises, how to perform them, or what’s safe, contact us or consult with a certified trainer who has a background in prenatal fitness.
Some ideal core-strengthening exercises that are safe to perform throughout pregnancy are:
1. Pelvic tilts
2. Modified planks
3. Cat-cow stretches
4. Clamshells
5. Bird-Dog
6. Side-lying Leg Lifts
Common Concerns and Misconceptions
Don’t core exercises during pregnancy squish the baby?
Not at all! When performed properly and with the necessary modifications, core exercises support a changing body throughout pregnancy, labor, delivery, and recovery. Additionally, the baby is well-protected within the uterus, and the modifications made to pregnancy-safe core exercises prevent direct pressure on the uterus itself.
While it is true that the muscles of the abdominal wall shift and stretch during pregnancy to accommodate the growing baby, the muscles do not disappear! Intentionally maintaining core strength can limit and reverse the abdominal weakening many pregnant people experience.
Will exercising harm the baby?
Quite the opposite – exercising while pregnant is extremely beneficial to the baby, as well as the pregnant person. The American College of Obstetrics and Gynecology (ACOG) has found that physical activity does not increase your risk of miscarriage, low birth weight, or early delivery. In fact, exercise during pregnancy is associated with the occurrence of full-term pregnancy. It has also been shown to reduce the risks of birth defects or complications in delivery, such as meconium-stained amniotic fluid, umbilical cord entanglement, abnormally fast fetal heart rate, or the need for emergency C-sections.
The benefits of exercise during pregnancy also extend well beyond the duration of the pregnancy. Children born of fit pregnancies are leaner, healthier, and more intelligent well into their later childhood years.
Having a strong core helps support your pregnancy, your growing belly, and your baby. A strong core aids in balance, posture, and alignment, which can alleviate common pregnancy-related pains. It also benefits labor and recovery postpartum. Remember, prioritizing your health and well-being during this time is crucial for both you and your baby! What concerns do you have about working out while pregnant? Tell us in the comments below!
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