“I didn’t even DO anything. Why does my back hurt?”
That one comes up almost every week, and usually with a little frustration behind it. Because it feels unfair. You’d understand it if you’d spent the day hauling shingles up a ladder. But you sat in a chair… at your office all day.
Truth is… sitting isn’t nothing. Sitting is something you’re practicing, for eight or nine hours a day, five days a week… and your body is paying VERY close attention.
Your back hurts from sitting because your hip flexors get short and stiff, your glutes quit firing, and your core stops being asked to do its job. Then you stand up and your low back covers for all three.
Here’s how that actually happens.
Your body gets good at whatever you do most
This is the part I wish everybody understood better, because it isn’t a design flaw. It’s your body being efficient.
Whatever position you hold the most, your body settles into. So if you sit all day, sitting will be the most comfortable. If you are on your feet all day, moving will feel the best. But sitting is really dangerous… because muscles that stay short get comfortable short. Muscles that never get asked to work stop recruiting automatically. That’s not your body failing you… that’s your body adapting to what your environment has deemed important.
You just happened to tell it that sitting matters. Eight hours a day. For years… and years… and years.
The hip flexor problem, and why it’s a BACK problem
Sit down and the muscles at the front of your hips are in a shortened position. Stay there all day and they start to prefer it.
Now here’s the part most people don’t get. One of those hip flexors, your psoas, doesn’t attach to your hip at all on the top end. It attaches directly to your lumbar spine. Your low back.
So when it gets short and tight from sitting, it isn’t just pulling on your hip. It’s pulling on your spine, all day, every day, while you sit there answering emails and attending zoom meetings.
That pull alone is enough to make a back angry. And it’s the reason stretching your low back never seems to help for long… you’re chasing the symptom instead of the thing doing the pulling.
Meanwhile, your glutes clock out
Your glutes are the biggest, strongest muscles in your body. Their whole job is extending your hip. Standing you up, pushing you forward, powering every step.
They also do almost nothing while you’re sitting on them. We call it dead butt. A butt that gets comfy doing nothing, and suddenly it’s dead when you need it.
Muscles that go unused for long stretches get slow to turn on. Not weak exactly… just LATE. So when you finally stand up and bend down for something, the glutes are half a beat behind, and your low back jumps in to cover.
Every single time. Because your body is smart, and it will always find a way to get the job done, even if the way it picks costs you.
Do that a few thousand times and now you have a motor pattern that has your low back doing a job it was never meant to.
And your core never had to try
Your core holds your spine steady while your arms and legs do things. From your shoulders to the bottom of your butt.
When you’re in a chair, the chair does the supporting. The backrest holds you. The seat holds you. Your midsection can check out entirely, and it does.
So you get a body that has spent years practicing:
Short hips.
Quiet glutes.
Sleepy core.
One very tired low back.
What actually fixes it
Two things, and you need both. Not one. Both.
Mobility. You have to get those hips open again, and your upper back moving, so your low back isn’t the only part of you willing to bend. Think: hip flexor stretches, hip openers, thoracic rotation.
Strength. Then you have to teach the glutes and the core to do their jobs again, under actual load, so they turn on when you need them. Think: hinges, squats, carries, bracing work.
Mobility without strength gives you a body that can get into good positions and then can’t hold them. Strength without mobility gives you a body that can’t get into the positions in the first place.
Together is what works. It’s ALWAYS together.
Standing desks and stretching your back
Two things people try first, so let’s be fair to both.
A standing desk helps, a little. Standing all day gives you a different set of problems instead of the same ones, so if you have one, great… just don’t expect it to fix everything by itself.
And stretching your low back feels amazing for about ten minutes. I get why people keep doing it. But if your psoas is pulling and your glutes are asleep, stretching the part that hurts is treating the messenger.
Neither one is a bad idea. But neither one is enough.
What to do at your desk today
Get up every 30 to 45 minutes and move for two minutes. Walk to the printer, go refill your water, take the stairs down and back.
That’s it. It doesn’t need to be a routine.
Your discs don’t have much of a blood supply. They rely on movement to push fluid in and out, which is how they stay healthy. A whole day without that is hard on them, and standing up every half hour undoes more of it than you’d think.
Set a timer. Seriously… set the timer, because you will NOT remember.
Then come train
The desk breaks keep it from getting worse. They won’t build you what you’re missing.
That part takes actual training. Hips that open, glutes that fire, a core that braces, done on purpose, with someone watching to make sure you’re not just reinforcing the same poor patterns with weight added.
Book a No Sweat Intro at Cobra Command in Basehor and tell us you sit all day. That tells us most of what we need to know about where to start.
You’re not broken. You’ve just been practicing something for a really long time, and now we’re going to practice something else.
-Jill
