Hip Mobility (90/90 Hip Rotations)
Improves internal and external rotation range of motion at the hip joint, which supports healthier movement patterns at the lower back and knee during daily activity.
Duration
5 minutes
Calories
8-10 kcal
Reps × Sets
8-10 reps each side × 2 sets
Rest
30-45 seconds between sets
Benefits
Muscles Involved
Hip internal/external rotators, Gluteus medius, Piriformis, Hip flexors
Equipment Required
Exercise Mat
Step-by-Step Instructions
- 1Sit on the floor with both knees bent, one leg in front of you at 90 degrees, the other leg out to the side also at 90 degrees.
- 2Keeping your chest tall, slowly rotate both knees to the opposite side, switching which leg is in front.
- 3Move with control, using your hands on the floor for balance if needed.
- 4Continue alternating sides.
Breathing: Breathe naturally and continuously throughout the movement.
Common Mistakes
- Leaning far back with the torso to compensate for limited hip range, instead of allowing a smaller, controlled motion
- Forcing the knee down to the floor against resistance
Safety Tips
- A smaller range of motion performed well is more valuable than a larger range forced through discomfort
Contraindications — Do Not Do This Exercise If
- Recent hip surgery, before surgeon clearance
- Acute hip labral tear with significant pain
- Hip arthritis flare with significant, sharp pain on rotation
Stop Immediately If
- Sharp, catching hip pain
- Sudden locking sensation in the hip
Progressions
Harder (Progression)
Add a hold at end-range, or progress to a standing hip circle pattern.
Easier (Regression)
Perform lying on your back with knees bent, gently rotating both knees side to side within a smaller range.
Scientific Evidence
Hip mobility work is a standard component of movement-based rehabilitation for both hip-specific complaints and as a contributor to reducing compensatory lumbar spine load, per AAOS patient education on hip health.⁵
Worth including for anyone with recurring low back pain and a desk job — tight hips are an under-recognized, real contributor. — Dr. Vishal Nigam
Frequently Asked Questions
Related Exercises
References
- 1. North American Spine Society Section on Interdisciplinary Spine. Therapeutic exercise following lumbar spine surgery: a narrative review.
- 2. American College of Obstetricians and Gynecologists. Committee Opinion No. 804: Physical Activity and Exercise During Pregnancy and the Postpartum Period.
- 3. American Physical Therapy Association. Clinical Practice Guidelines: Neck Pain (2017); Patient Education: Core Strengthening for Spine Health; Shoulder Impingement and Postural Exercise.
- 4. American Academy of Orthopaedic Surgeons. Clinical Practice Guideline: Management of Osteoarthritis of the Knee; OrthoInfo: Thoracic Spine Conditions, Hip Impingement.
- 5. World Health Organization. 2020 Guidelines on Physical Activity and Sedentary Behaviour.
- 6. American College of Sports Medicine. Position Stand: Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults (2026); Guidelines for Exercise Testing and Prescription — Flexibility Recommendations.
- 7. North American Spine Society. Patient Education: Understanding Sciatica; Diagnosis and Treatment of Degenerative Lumbar Spinal Stenosis.
- 8. World Health Organization. 2020 Guidelines on Physical Activity and Sedentary Behaviour — Older Adult Recommendations.
- 9. Carenyx Knowledge Library. Understanding Slip Disc (01-understanding-slip-disc.md); Understanding Sciatica (02-sciatica.md) — reused directly, not re-derived.