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Rehabilitation2026-03-09•6 min read

SI Joint Pain Exercises: Sacroiliac Joint Relief

What Is SI Joint Pain?

The sacroiliac (SI) joints connect your spine to your pelvis. SI joint dysfunction causes low back and buttock pain.

Common symptoms:

  • Pain in low back, buttock, or hip
  • Pain worse with standing up, climbing stairs, or getting out of car
  • One-sided pain (usually)
  • Pain sitting on hard surfaces
  • May radiate down leg (not below knee usually)

    • What Causes SI Joint Problems?

    Too Much Movement (Hypermobility)

  • Pregnancy/postpartum
  • Ligament laxity
  • Previous injury

    • Too Little Movement (Hypomobility)

  • Arthritis
  • Prolonged positioning
  • Muscle imbalances

    • Other Factors

  • Leg length difference
  • Scoliosis
  • Poor mechanics
  • Direct trauma

    • Important: Get Proper Diagnosis

    SI joint pain can mimic:

  • Lumbar disc problems
  • Hip issues
  • Piriformis syndrome
  • Referred pain

    • See a professional for accurate diagnosis before self-treating.

    Exercises for SI Joint Pain

    Muscle Balance Exercises

    Clamshells

  • Side-lying, knees bent
  • Open knee, keep feet together
  • Feel outer hip work
  • 3 x 15 each side

    • Glute Bridges

  • Lie on back, feet flat
  • Drive through heels
  • Squeeze glutes at top
  • 3 x 15

    • Bird Dog

  • Hands and knees
  • Extend opposite arm/leg
  • Keep spine neutral
  • 10 each side

    • Dead Bug

  • Lie on back
  • Opposite arm/leg extension
  • Keep back flat
  • 10 each side

    • Hip and Pelvis Mobility

    Knee-to-Chest (Single)

  • Lie on back
  • Pull one knee to chest
  • Other leg straight
  • Hold 30 seconds each

    • Figure 4 Stretch

  • Lie on back
  • Ankle over opposite knee
  • Pull toward chest
  • 30 seconds each side

    • Hip Flexor Stretch

  • Half-kneeling
  • Squeeze glute on back leg
  • Gentle forward shift
  • 30 seconds each side

    • Pelvic Tilts

  • Lie on back
  • Flatten and arch low back
  • 15-20 reps
  • Gentle, controlled

    • Stability Exercises

    Supine Marching

  • Lie on back, knees bent
  • Alternate lifting feet slightly
  • Keep pelvis stable
  • 20 reps total

    • Isometric Adduction

  • Ball between knees
  • Squeeze 5 seconds
  • Release
  • 10-15 reps

    • Isometric Abduction

  • Band around knees
  • Press out 5 seconds
  • Release
  • 10-15 reps

    • Single Leg Balance

  • Stand on one leg
  • Keep hips level
  • 30 seconds each

    • SI Joint Mobilizations (If Hypomobile)

    Supine Twist

  • Lie on back
  • Cross one knee over body
  • Keep shoulders down
  • Hold 30 seconds each side

    • Thread the Needle Pelvis

  • Hands and knees
  • Shift weight to one side
  • Feel SI area
  • 10 each direction

    • Note: Skip mobilizations if hypermobile (e.g., postpartum)

    Stability vs Mobility: Which Do You Need?

    Signs You Need STABILITY

  • Pregnancy/postpartum
  • Feels "unstable" or "shifts"
  • Hypermobile elsewhere
  • Pain with single-leg activities

    • Focus on: Glute strengthening, core stability, avoid extreme ranges

    Signs You Need MOBILITY

  • General stiffness
  • Arthritis
  • Feels "stuck"
  • Better with gentle movement

    • Focus on: Gentle mobilizations, hip stretching, movement variability

    Sample Program

    Daily Routine (10 minutes)

    Stability Focus:

    1. Pelvic tilts: 15 reps

    2. Dead bugs: 10 each side

    3. Clamshells: 15 each side

    4. Glute bridges: 15 reps

    5. Supine marching: 20 reps

    Mobility Focus:

    1. Knee-to-chest: 30 sec each

    2. Figure 4: 30 sec each

    3. Supine twist: 30 sec each

    4. Pelvic tilts: 15 reps

    5. Hip flexor stretch: 30 sec each

    Lifestyle Modifications

    Sitting

  • Avoid crossing legs
  • Sit on both sit bones evenly
  • Use lumbar support
  • Take breaks

    • Standing

  • Distribute weight evenly
  • Don't favor one leg
  • Avoid prolonged standing

    • Sleeping

  • Pillow between knees (side sleeping)
  • Pillow under knees (back sleeping)
  • Supportive mattress

    • Movement

  • Avoid asymmetric loading
  • Be careful getting in/out of car
  • Modify stairs if needed

    • SI Belt

    A sacroiliac belt can help by:

  • Providing compression
  • Supporting joint
  • Reducing shear

    • Use: Temporarily during flare-ups, not long-term dependency

    When to Seek Help

  • No improvement after 4 weeks
  • Symptoms worsening
  • Radiating symptoms
  • Neurological signs
  • Impact on daily function

    • The Bottom Line

    SI joint pain responds to:

    1. Proper diagnosis — Determine cause

    2. Right approach — Stability vs mobility

    3. Muscle balance — Strong glutes and core

    4. Daily consistency — Regular exercises

    5. Activity modification — Avoid aggravators

    Most SI joint pain improves with conservative treatment.

    Foundational Rehab programs address SI joint dysfunction comprehensively.

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