Quick question: when's the last time you thought about your pelvic floor during a workout? If you're like most people, the answer is probably never, unless you've experienced a random ache, a surprise leak during burpees, or heard your trainer mention it once or twice.
Meanwhile, we obsess over building a strong core with planks, crunches, and ab wheels, but we rarely stop to think whether our pelvic floor is strong too.
But here's the truth: while these two systems are closely connected, they are not the same thing. Understanding the difference can make a huge difference in your workouts, your posture, and even your everyday quality of life.
What Is Your "Core"?
When most people think of "core," they picture six-pack abs. But your core is so much more than that. It's a group of muscles that work together to stabilize your spine and pelvis, including:
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Rectus abdominis (the "six-pack" muscle)
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Obliques (side abdominal muscles)
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Transverse abdominis (the deep, corset-like muscle that wraps around your midsection)
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Erector spinae (muscles running along your spine)
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Diaphragm (yes, your breathing muscle counts too!)
Your core's job is to support your spine, transfer force between your upper and lower body, and keep you stable during movement whether you're lifting weights, running, or just bending down to tie your shoes.
What Is the Pelvic Floor?
The pelvic floor is a group of muscles that forms a supportive "hammock" at the base of your pelvis. It stretches from your pubic bone to your tailbone and supports your bladder, bowel, and (in women) uterus.
The pelvic floor's main responsibilities include:
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Supporting pelvic organs
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Controlling bladder and bowel function
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Contributing to core stability and posture
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Playing a role in sexual function
While it's a much smaller muscle group than the core, its impact on daily function is huge (and it's commonly overlooked in traditional workout programs).
→ Want to learn more with expert guidance? O2 Fitness Clubs is hosting a free Pelvic Floor Class Series! Whether you're postpartum, dealing with core or pelvic pain, or just curious about this often-misunderstood muscle group, our sessions are designed for every fitness level. Reserve your spot on our Events Page here!
How Are Your Core and Pelvic Floor Connected?
Think of your core as a cylinder or canister. The diaphragm sits at the top, the deep abdominal muscles wrap around the sides, and the pelvic floor forms the base. They work together, changing pressure and tension with every breath and movement you make.
When you're doing a heavy lift or jump (or even a sneeze), your core and pelvic floor should work together to manage the pressure created in your abdomen. If one part of this system is weak or not functioning properly, it can lead to issues like lower back pain, poor posture, or even pelvic floor dysfunction (think: unwanted leaks during a jump rope session).
Why the Difference Matters for Your Training
Here's where things get interesting: you can have a strong core and a weak pelvic floor, or vice versa. This is why simply doing hundreds of crunches or planks won't necessarily fix pelvic floor issues, and pelvic floor exercises alone won't build the abdominal strength you need for heavy lifting or explosive movement.
A few common scenarios we see at O2 Fitness Clubs:
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The already strong one: Someone with rock-solid abs from years of core training who still experiences pelvic pressure or leaking during high-impact workouts because their pelvic floor hasn't been trained to coordinate with that strength.
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The postpartum client: Someone rebuilding pelvic floor function after childbirth who needs to reintroduce core work carefully, rather than jumping straight back into intense ab exercises.
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The crunch lover: Someone who trains abs constantly but neglects breath work and pelvic floor engagement, leading to excess tension or dysfunction rather than true strength.
How to Train Both Systems Together
The good news? You don't need to change your whole workout plan just to make sure you're doing core and pelvic floor work. You just need to be more intentional. Here are a few ways to start:
1. Practice breath work.
Diaphragmatic breathing (belly breathing) helps your pelvic floor and deep core muscles learn to coordinate properly. Try inhaling to expand your ribs and belly, then exhaling while gently engaging your deep core. This is easy to toss into your existing warm-up or cool-down routine!
2. Avoid holding your breath during heavy lifts.
Bracing is important, but constantly holding your breath during every set can create excess downward pressure on the pelvic floor over time.
3. Incorporate pelvic floor-specific exercises.
Simple Kegel exercises, done correctly (both contracting and fully relaxing), can help build awareness and strength in this often-neglected, slightly more difficult-to-train area.
4. Don't skip mobility and relaxation work.
A pelvic floor that's too tight can be just as problematic as one that's too weak. Stretching, yoga, and relaxation techniques can help release excess tension.
5. Work with a professional if you're unsure.
If you've had a baby, experience any leaking, pelvic pain, or pressure, or you're just not sure where to start, a pelvic floor physical therapist can offer a personalized assessment. (Many of our coaches at O2 Fitness Clubs are also happy to help modify your current routine or create a new one with this in mind!)
The Bottom Line
Your core and pelvic floor are teammates, not twins. Both play a role in keeping your body strong, stable, and functional. Whether you're chasing PRs in the weight room, running after your kids, or just trying to sneeze without worry, training both systems (together and individually) is key to feeling your best.
→ Ready to build a stronger, more coordinated core-to-floor connection? Our free Pelvic Floor Class Series walks you through safe, effective exercises to build strength, improve coordination, and support your body from the inside out. Spots are limited, so grab yours today! Sign up on our Events Page here!
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