Sitting doesn't damage you. It just means you spend eight hours a day in a narrow slice of your available range — hips at 90°, upper back rounded, shoulders forward — and tissue is obliging enough to get comfortable there. The fix isn't a posture lecture. It's visiting the end ranges you've stopped using, briefly, most days.
This routine takes ten minutes and needs a floor. Do it after work, or as a warm-up before lifting. Breathe normally throughout — if you're holding your breath, ease off until you're not.
The routine
1. 90/90 hip switch — 2 minutes
Sit on the floor, both knees bent at 90°, one leg in front and one out to the side. Sit tall, then rotate both knees over to the other side without using your hands. Slow, controlled, about ten switches per side. This is the single most useful thing on the list for hips that only ever see a chair.
2. Couch stretch — 1 minute per side
Back foot up on a couch or low bench, shin vertical, front foot planted. Now squeeze your glute on the back leg and tuck your pelvis under — that tuck is the whole exercise. Without it you're just arching your lower back and feeling a stretch that isn't in your hip flexor.
3. Thoracic extension over a support — 1 minute
Foam roller or rolled towel across your upper back, roughly at the bottom of the shoulder blades. Hands behind your head, ribs down, and extend backwards over the support. Move the roller an inch and repeat. Keep it above the lower back — the lumbar spine isn't the segment that needs more extension.
4. Open book — 1 minute per side
Lie on your side, knees stacked and bent at 90°, arms straight out in front. Keeping the knees down, sweep the top arm across your body and open toward the ceiling, following the hand with your eyes. Exhale as you rotate; that's what gets the last few degrees.
5. Deep squat hold — 1–2 minutes
Heels down, feet where they're comfortable, sit into the bottom of a squat and stay there. Hold a doorframe or kettlebell as a counterweight if you tip backwards. Elbows inside the knees, gently pushing them out. Rock side to side. If your heels won't reach the floor, put a couple of books under them — you'll still get everything you came for.
6. Wall slides — 1 minute
Back against a wall, forearms against it, elbows at about shoulder height. Slide the arms overhead while keeping forearms, wrists, and lower back in contact. Most people lose contact almost immediately — the range where you can keep it is the range you actually own.
Ten minutes five times a week does considerably more than fifty minutes once on a Sunday. Range of motion responds to being revisited, not to being hammered.
What this won't do
It won't lengthen a muscle permanently, fix a disc, or correct posture in any structural sense. Most of the immediate improvement you feel is your nervous system deciding a position is safe and permitting more range — which is genuinely useful, and also why it fades if you stop.
The durable version of mobility is strength through range: full-depth squats, Romanian deadlifts, overhead pressing. Stretching gets you the range; loading it is what makes you keep it. Treat this ten minutes as the on-ramp to lifting through a full range of motion, not as a replacement for it.
Sharp, radiating, or persistent pain is not a mobility problem to stretch through — get it assessed by a physio or doctor.