There are some things in life I’ll argue about forever—like whether pineapple belongs on pizza—but I’ve learned that squats spark an entirely different level of passion. If you’ve spent any time in the fitness world, you already know: mention squats in a room full of lifters, trainers, or rehab pros, and you’ll get ten different opinions in under five minutes.
Some people call squats the king of all exercises. Others, including respected coaches like Mike Boyle, argue they’re often overused, misunderstood, and unnecessary for many people. Then you have voices like Dr. Joel Seedman who suggest that going too deep—past roughly 90 degrees—might not be ideal for most lifters. And somewhere in between, clinicians like Dr. Aaron Horschig break down biomechanics in a way that makes you question everything you thought you knew.
As a woman who lifts—and coaches other women—I’ve lived through the confusion, the fear, the pride, and yes, even the lower-back tightness that sometimes comes after a heavy session. So instead of giving you a textbook lecture on spinal mechanics, I want to talk about squats the way we actually experience them: in real bodies, with real anatomy, real goals, and real life happening outside the gym.
Because squats aren’t just about depth. They’re about identity, ego, safety, confidence, and knowing your body well enough to make smart choices.
Let’s start with the emotional part—because no one talks about it enough.
When I first started lifting seriously, I felt like I had something to prove. I wanted to squat deep. Not just “parallel.” I wanted that ass-to-grass depth that Instagram glorifies. I wanted the kind of squat that makes people nod in approval. The kind that says, “She knows what she’s doing.”
And honestly? For a while, it felt powerful.
But then I noticed something subtle. At the very bottom of my squat, just before I would stand up, my lower back would slightly round. If I filmed myself from the side, I could see it: that little tuck under. The infamous “butt wink.”
If you’re not familiar, the butt wink is when your pelvis tucks under at the bottom of a squat, causing your lower back (lumbar spine) to flex. In other words, instead of maintaining a neutral curve, your spine rounds slightly.
Now here’s the part most people oversimplify: spinal flexion is not evil.
Your spine is designed to move. It flexes when you tie your shoes. It flexes when you curl up on the couch. It flexes when you pick up your child in a slightly awkward position. Flexion, by itself, is not a crime.
The real question is: what happens when you add load?
When you place a barbell across your back and descend into a squat, your spine experiences compression. That’s normal. In fact, a healthy spine is surprisingly resilient to compressive forces. Between each vertebra sits an intervertebral disc—basically a gel-like cushion designed to absorb and distribute force.
Compression alone isn’t necessarily dangerous. The body adapts.
The potential issue arises when you combine compression with repeated spinal flexion under load. When you flex and compress at the same time, you introduce shear forces. Over time—rep after rep, session after session—that combination can increase the stress placed on spinal structures.
And here’s the part that matters: we are not all built the same.
Some women can squat deep with a perfectly neutral spine and never experience that pelvic tuck. Others will hit a depth where anatomy—not tightness, not weakness, but bone structure—simply doesn’t allow them to go further without rounding.
For years, I blamed my hamstrings. That’s what everyone says, right? “Your hamstrings are tight.” So I stretched. And stretched. And stretched some more.
But here’s something that changed the way I understood my own body: during a squat, your hamstrings don’t actually lengthen dramatically. They attach at both the pelvis and the knee. As your hips flex, your knees flex too. That means the hamstrings don’t experience the extreme stretch people assume they do.


