Posterior Pelvic Tilt: Causes, Exercises & How to Fix Swayback Posture | Therapy X

Welcome to Part 2 of our Pelvic Tilt Series!

If you missed our first blog on anterior pelvic tilt, go check it out. Today, we're shifting gears to talk about its lesser-known sibling: posterior pelvic tilt. You know, that slouched, tucked-under look some people have when standing or sitting? It messes with your entire body and causes hip and low back pain.

So… What Is Posterior Pelvic Tilt?

It’s when your pelvis tucks under. Instead of your natural lumbar curve (the shock absorber of your spine) being present, it flattens out. This is common in what people refer to as sway back posture, where your hips are pushed forward, your upper back rounded, and your spine loses its ideal shape.

How to Spot It

Standing from the side, someone with posterior pelvic tilt will often have:

• A flat lower back
• Glutes tucked under
• Tight hamstrings
• A forward head or rounded shoulders

Sitting? They usually slouch way back in their chair with their tailbone curled under them. Think collapsed-in "C" shape.

Anterior vs. Posterior Pelvic Tilt

What Causes Posterior Pelvic Tilt?

Common culprits:

• Sitting for long periods (especially slouching)
• Weak hip flexors and lower back muscles
• Tight hamstrings and glutes
• Poor lifting, sitting, or standing mechanics

All of these throw your pelvis out of alignment and shut down key stabilizers like your core and glutes.

Symptoms: Why You Might Be Feeling Off

People with posterior pelvic tilt often experience:

• Low back pain (due to the spine losing its natural shock-absorbing curve)
• Stiff hips
• Knee or hamstring tightness
• Poor posture and inefficient movement patterns
• Trouble activating glutes during workouts

Search phrases like “posterior pelvic tilt symptoms” or “low back pain relief?” This is probably what you’re trying to fix.

Long-Term Consequences (if Left Untreated)

When your pelvis stays tucked under chronically, it creates compensations throughout the entire body. Over time, this can lead to:

• Disc compression and degeneration in the lumbar spine
• Reduced athletic performance
• Sciatica
• Pain during sitting, walking, running, or even standing
• Increased risk of other postural dysfunctions

How to Fix Posterior Pelvic Tilt

You’ll need to focus on:

• Stretching the tight muscles (glutes, hamstrings)
• Strengthening the weak ones (hip flexors, core, spinal erectors)
• Corrective movement patterns to retrain your posture

How to Fix Posterior Pelvic Tilt - Effective Posterior Pelvic Tilt Exercises

Here are six effective exercises to correct your posterior pelvic tilt.

1. Active Hamstring Stretch 

Release tension in the posterior chain.

How to do it:

• Lie flat on your back
• Interlace your fingers behind one thigh and straighten your knee until you feel a moderate stretch
• Hold for 20-30 seconds
• Repeat 2-3 times

2. Glute Stretch

Decreases tension in your glutes.

How to do it:

• Lie on your back with knees bent. Cross the leg you want to stretch over the other thigh
• Hold the back of your thigh
• Pull your thigh towards your chest
• Feel a gentle stretch in buttock of the leg that’s bent
• Hold for 20-30 seconds
• Repeat 2-3 times

3. Bird Dogs

Builds core and spinal stability.

How to do it:

• Start in a table top position on all fours.
• Pull your belly button towards the spine to engage your core and hold throughout the exercise.
• Extend one leg and the opposite arm
• Return to start position
• Repeat on the opposite side
• Do not lean over to one side. Do not allow hips to rotate during exercise. Do not allow the low back to arch excessively.
• 3 X 10 reps

4. Prone Press-Ups

Counteracts posterior pelvic tilt by restoring the natural curve in your lower back, reactivating spinal extensors, and improving lumbar mobility.

How to do it:

• Lying on your stomach, press up on your forearms.
• Relax in this position for 5-10 seconds
• Return to start position
• Repeat
• *Only go as far as you feel comfortable without pain.
• 3 X 10 reps, 5-10 second holds

5. Wall Angels

Strengthens your postural muscles and reinforces proper upper back alignment.

How to do it:

• With your back against the wall, start with arms at shoulder height, palms facing forward
• Pull your shoulder blades back and down
• Slide your arms up overhead
• Return to starting position and repeat
• *Keep ribs down and avoid arching your back. Do not let your shoulders shrug up. Slow, controlled movements.
• 3 X 10 reps

6. Dead bugs

Reinforces controlled pelvic movement. Lower your legs only as far as you can go without arching your back off the floor.

How to do it:

• Lying on your back bring your arms up and knees up to 90 degrees
• Pull your belly button towards your spine and gently tuck your tailbone to engage your core
• Slowly straighten on leg out and lower it down towards the floor
• Do not allow your low back to arch
• Exhale and bring your leg back up to 90 degrees
• Perform on other side and continue alternating sides
• 3 X 12 reps

Search-worthy exercises include:

• Standing or half-kneeling hip flexor stretches
• Prone glute activation drills
• Dead bugs and bird-dogs for core control
• Lumbar extension exercises(posterior pelvic tilt fix, posterior pelvic tilt exercises, how to fix posterior pelvic tilt, that’s what you’re googling, right?)

Incorporate It Into Daily Life

• Sit on your sit bones, not your tailbone.
• Use lumbar support if you’re in a chair for long hours.

• Break up your sitting time with posture resets.
• Walk with a slight glute squeeze, not a full hip tuck.

How Therapy X Can Help

Here’s how our multidisciplinary team steps in:

✅ Physiotherapy: Thorough assessment, personalized posterior pelvic tilt exercises, and core/glute retraining.

✅ Chiropractic: Joint mobility and postural realignment. We help bring your spine back to neutral.

✅ Massage Therapy: Loosen up tight glutes and hamstrings. Think trigger point, deep tissue, and myofascial release.

✅ Fascial Stretch Therapy: Improve hip mobility and reverse years of tension from slouching or sitting.

✅ Kinesiology: Movement coaching and progressive strengthening plans to keep your pelvis neutral long-term.

No guesswork. No quick fixes. Just a collaborative plan tailored to you.

Book in with our team today and get back to feeling like yourself again; upright, aligned, and strong.

Citations

1. Hamstring Tightness & Pelvic Alignment: "Research shows that shortened, tight hamstrings pull downward on the ischial tuberosities of the pelvis, directly contributing to posterior pelvic rotation and flattening the natural lumbar curve" (Lopez-Mino et al., 2021; Journal of Human Kinetics).

2. Lumbar Lordosis & Lower Back Compression: "A flattened lower back reduces the spine's natural shock-absorbing capacity, increasing pressure on intervertebral discs during prolonged sitting or standing" (Progress in Orthopedic Surgery, 2020).

Frequently Asked Questions

Q1: What is posterior pelvic tilt?

A: Posterior pelvic tilt (PPT) is a postural misalignment where the back of the pelvis rotates downward and the front lifts upward. This causes the lower back to flatten, eliminating the natural inward curve (lordosis) of the spine, often leading to a flattened low back posture and low back stiffness.

Q2: What is the difference between anterior pelvic tilt and posterior pelvic tilt?

A: Anterior pelvic tilt (APT) occurs when the pelvis rotates forward, causing an excessive lower back arch ("duck butt"). Posterior pelvic tilt (PPT) occurs when the pelvis tucks backward under the hips, creating a flattened lower back and a slouching posture.

Q3: Can posterior pelvic tilt cause low back pain and sciatica?

A: Yes. When the natural curve of your lower back is flattened, shock absorption is compromised, putting increased pressure on lumbar discs and surrounding spinal nerves. This chronic strain can lead to localized low back pain, muscle fatigue, or sciatic nerve irritation.

Q4: How do I know if I have a posterior pelvic tilt?

A: Common signs include a visibly flat lower back when standing, glutes tucked tightly under the hips, a tendency to slouch on your tailbone when sitting, and chronically tight hamstrings coupled with weak hip flexors. A clinical assessment by a physiotherapist or chiropractor can confirm your pelvic alignment.

Q5: How long does it take to fix posterior pelvic tilt?

A: With a targeted treatment plan of corrective exercises, postural education, most people notice mobility and pain improvements within 4 to 8 weeks. Long-term realignment depends on consistency and addressing daily lifestyle habits.