Psoas Stretch Guide: Improve Mobility and Relieve Pain

8 MIN READ • BY The BodySpec Team • May 5, 2026

An abstract illustration of a human figure in a stretching pose with a brightly glowing yellow line running down its back and lower torso, representing a connected core or spine.

Psoas Stretch Guide: Improve Mobility & Relieve Pain

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TL;DR: The psoas stretch is a targeted movement designed to release tension in the primary hip flexor muscle that connects your spine to your legs. Regularly stretching the psoas can help improve hip mobility, alleviate lower back pain, and correct postural imbalances caused by prolonged sitting.

If you spend your days parked at a desk, or push yourself during weekend runs, chances are you’ve got a tight psoas (pronounced SO-as) muscle. It’s one of the most hardworking yet misunderstood muscles in your body, acting as a functional bridge between your upper and lower body (Physiopedia, 2024). When your psoas is restricted, the consequences ripple outward, driving lower back pain, affecting your posture, and stalling your athletic performance.

So, what exactly is the psoas, why does it get so cranky, and how can you fix it? This ultimate guide dives into the anatomy of the psoas, separates static stretches from active neuromuscular release, and provides a progressive stretching plan to restore your mobility.

Psoas Anatomy 101: The Deep Core Bridge

The psoas major originates from your lumbar spine, travels deeply through the pelvis, and attaches to the top of your femur (thigh bone) (Physiopedia, 2024). Because it’s often grouped with the iliacus muscle, you might hear it referred to as the iliopsoas.

This deep core muscle acts as a primary hip flexor. It helps you lift your knee towards your chest—crucial for walking, climbing stairs, and running. But its role doesn’t stop there. Because it attaches directly to your lumbar spine, the psoas helps stabilize your midsection and maintain an upright posture.

Why Does the Psoas Get Tight?

Psoas restrictions generally stem from several primary causes:

Under-use (The Desk Worker's Dilemma): Prolonged sitting keeps your hips in a continuous state of flexion. Over time, the nervous system adapts, causing the muscle to shorten and remain tight.
Over-use (The Weekend Warrior's Trap): Repeated hip flexion from activities like running or playing soccer can fatigue the psoas, leading to overuse injuries and stiffness (OnePeloton, 2025).
Stress: Your psoas is intimately connected with your body's "fight or flight" response. Because it is abundant in sympathetic nerve fibers, it can reflexively clench and store tension during moments of emotional or physical stress (Integrative Psychiatry Institute, 2024).

An illustration of a person with poor posture sitting at a desk and typing on a laptop, with a red coiled spring inside their lower back area to symbolize hip or back tension.

A tight psoas is like an uninvited guest crashing your organ party. It pulls on the lower spine, often creating an excessive arch (lumbar hyper-lordosis) which acts as a primary driver of non-specific lower back pain.

The Evidence: Stretching vs. Pandiculation

Before diving into a stretching routine, it is vital to understand the science of muscle release.

Static Stretching

Traditional static stretching remains popular and effective for improving joint range of motion (ROM) and releasing muscular tension. A study by Lakkadsha et al. (2022) evaluated patients with lower back pain and lumbar hyper-lordosis. The researchers evaluated Proprioceptive Neuromuscular Facilitation (PNF) stretching alongside Muscle Energy Technique (MET), a manual therapy using gentle contractions to relax tissue. They found that both methods significantly improved hip extension and decreased pain. PNF—which involves actively contracting the muscle before stretching it—outperformed standard MET.

A man in dark athletic wear stretches his leg with a black resistance band while sitting on a black yoga mat. He holds the band with both hands, pulling it around the sole of his foot.

Neuromuscular Re-Education (Pandiculation)

Some physical therapists and clinical somatic educators argue that static stretching only provides temporary relief because it mechanically lengthens the muscle without changing the baseline tension set by the central nervous system. Instead, they recommend "pandiculation"—a neuromuscular technique involving a slow, voluntary contraction followed by an extremely slow, deliberate release to retrain the nervous system's feedback loop (Warren, 2021).

For the average individual, a blended approach of static holds to clear immediate stiffness and active, contract-relax movements (like PNF or pandiculation) offers the best long-term results.

5-Step Progressive Psoas Release Routine

Whether you have just 5 minutes between Zoom meetings or 15 minutes before a run, use this progressive routine. It moves from passive release to active strengthening.

1. The Passive Leg Dangle (Best for Beginners & Desk Workers)

This passive position uses gravity to gently lengthen a shortened psoas without stressing the lower back.

How to do it: Lie flat on your back on a sturdy bed or table, positioning your hips right at the edge. Pull your left knee tightly to your chest, holding it with both hands. Allow your right leg to slowly dangle off the edge toward the floor.
Time: Hold for 30–60 seconds, breathing deeply. Switch sides.

A person lying on a bed with one leg bent and held towards their chest, and the other leg dangling off the side of the bed, performing a passive leg dangle stretch.

2. Supported Glute Bridge (Best for Posture Alignment)

Because the glutes (hip extensors) are the opposing muscle group to the psoas (hip flexors), strengthening the former helps naturally lengthen the latter.

How to do it: Lie on your back with your knees bent and feet flat on the floor. Press your heels into the ground and squeeze your glutes to lift your hips toward the ceiling, keeping your back flat (OnePeloton, 2025).
Time: Perform 10–12 repetitions. Hold the top position for 2 seconds.

Vector drawing of a person performing a glute bridge exercise, lying on their back with knees bent and feet flat, pushing their hips upwards. An upward arrow indicates the direction of the movement.

3. The PNF Half-Kneel Stretch (Best for Athletes)

The half-kneeling stretch is a classic, but adding a PNF-style contraction makes it much more effective (Lakkadsha et al., 2022).

How to do it: Begin in a half-kneeling position with your right knee on the floor (use a pad if needed) and your left foot planted in front of you. Squeeze your right glute firmly—this is crucial to protect your lower spine. Gently shift your weight forward into the left leg.
The PNF Twist: While in the stretch, actively press your right knee down and forward into the floor for 5 seconds (as if trying to drag the floor forward). Then relax, and sink slightly deeper into the stretch for 15 seconds.
Time: Perform 3 contract-relax cycles per leg.

A man with dark hair and a beard wearing a dark grey t-shirt and black shorts performs a half-kneeling hip flexor stretch on a dark gym floor. He is looking to the right with his hands on his hips. A grey brick wall is in the background.

4. Supine Psoas March (Active Mobility)

This integrates active core stability with hip mobility, reminding the nervous system how to fire the psoas correctly without compensating through the lower back.

How to do it: Lie on your back with both legs hovering an inch off the ground. Brace your core (as if about to be punched in the stomach). Slowly pull your right knee towards your chest. Return to the extended position without letting the foot touch the ground.
Time: Alternate legs for 10 reps per side.

Illustration showing a man in a yellow shirt and green pants performing a supine psoas march core exercise. He is lying on his back with his right leg extended and left knee bent towards his chest, with his hands clasped around his shin.

5. Somatic Pelvic Tilts (Neuromuscular Release)

Use this technique to reset the tension levels in the psoas and lower back.

How to do it: Lie on your back with knees bent. Slowly and deliberately arch your lower back away from the floor, taking 3-4 seconds to reach maximum arch. Then, even more slowly, release the contraction, flattening your lower back into the floor over 5-8 seconds (Warren, 2021).
Time: Perform 10 slow, uninterrupted repetitions.

Tracking Your Mobility Improvements

Stretching your psoas is inherently valuable, but if you’re a weekend warrior or someone meticulously managing their physical health, tracking the systemic results of your mobility work is the logical next step. While a DEXA scan won't measure hip extension angles, maintaining healthy body composition and addressing muscle imbalances go hand-in-hand with better posture.

Booking a BodySpec DEXA scan provides objective data on your lean muscle mass and fat distribution. As your back pain decreases and your stride length increases, your ability to train consistently and build lean mass often improves right alongside it.

By integrating these psoas release techniques into your daily routine, you can counteract the effects of a sedentary lifestyle and unlock your hip mobility.

If pain persists or limits your movement, always consult a physical therapist for a personalized evaluation.