Corrective Exercise Toolkit

Hip External Rotation Restriction

Limited hip external rotation reduces squat depth and can cause compensations in the lumbar spine and knees.

Hip - Mobility

Biomechanical Mechanism

Posterior capsule tightness and deep rotator stiffness limit ER range.

Clinical Rationale

Restricted hip ER shifts stress to the lumbar spine and knee. Improving hip mobility restores lower-limb mechanics.

Practical Solution

Restore ER range and control before heavy squatting and rotational tasks.

Common Compensations

Progression

  1. 1Level 1: Mobility drills
  2. 2Level 2: End-range control
  3. 3Level 3: Integrated patterns
  4. 4Level 4: Loaded rotation

Regression

  • Reduce range
  • Use supported positions
  • Decrease load

Red Flags

Differential Diagnosis

Femoroacetabular impingementHip joint pathologyLabral involvement
Related Assessments
hip er 90 assessmentgoblet squat assessmentoverhead squat assessment
Related Exercises
piriformis stretchhip carsgoblet squatclamshell90 90 hip stretchglute piriformis smr

Evidence

Level: limited

Evidence for improving hip external rotation restriction with exercise and stretching is limited; clinical practice is guided by biomechanics and case reports.

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