Hip Strengthening Exercises
Overview
Your hip controls your knee. Weak hip abductors (glute medius) and external rotators allow the knee to collapse inward during cutting and landing—a primary ACL injury mechanism. Hip strengthening isn't optional in ACL rehab; it's essential for preventing re-injury.
The Hip-Knee Connection
Research shows that ACL injury prevention programs with strong hip components reduce injury rates by 50-70%. The hip is often called the "CEO of the lower extremity"—when it's weak, the knee suffers.
Key Benefits
- Controls knee valgus (inward collapse)
- Improves landing mechanics
- Reduces ACL re-injury risk
- Enhances single-leg stability
- Improves running and cutting performance
- Supports pelvic stability
Glute Medius (Hip Abductors)
Side-Lying Hip Abduction
- Lie on side with surgical leg on top
- Keep body in straight line, slight forward hip tilt
- Lift top leg toward ceiling (30-45°)
- Keep toes pointed forward or slightly down (not up)
- Pause at top, lower with control
- 3 sets of 15-20 reps
Common error: Rolling backward. Keep hips stacked vertically throughout.
Hip Hikes (Pelvic Drops)
- Stand on step or platform on surgical leg
- Let opposite leg hang off edge
- Drop that hip down (letting pelvis tilt)
- Then hike it back up using hip abductors
- Keep standing knee straight
- 3 sets of 12-15 reps
Focus: Control the drop, power the hike. Feel it in the standing-leg glute.
Monster Walks
- Band around ankles (or above knees for easier)
- Quarter squat position
- Take lateral steps, maintaining band tension
- Keep toes forward, don't let knees cave
- 10-15 steps each direction x 3 sets
Side Plank with Hip Abduction
Advanced (Month 2+)
- Side plank position on forearm
- Lift top leg toward ceiling
- Hold 5-10 seconds per lift
- 8-12 reps, 2-3 sets
Glute Maximus (Hip Extensors)
Glute Bridges
- Lie on back, knees bent, feet flat
- Squeeze glutes, lift hips toward ceiling
- Create straight line from knees to shoulders
- Hold 2-3 seconds at top
- Lower with control
- 3 sets of 15-20 reps
Single-Leg Glute Bridge
Progression (Week 6+)
- Same position as bilateral bridge
- Extend one leg, keeping thighs parallel
- Perform bridge on single leg
- Maintain level pelvis (no rotation)
- 3 sets of 10-12 each leg
Prone Hip Extension
- Lie face down
- Keeping knee straight, lift leg toward ceiling
- Squeeze glute at top
- Don't hyperextend low back
- 3 sets of 12-15 each leg
Hip Thrusts
Advanced (Month 3+)
- Upper back on bench, feet on floor
- Drive hips up toward ceiling
- Squeeze glutes hard at top
- Add weight as tolerated (barbell, dumbbell)
- 3 sets of 10-12 reps
Hip External Rotators
Clamshells
- Side-lying with knees bent 45°
- Keep feet together
- Open top knee like clamshell
- Don't let pelvis roll backward
- 3 sets of 15-20 reps each side
Progression: Add band above knees for more resistance.
Seated External Rotation
- Sit on edge of chair/bench
- Band around ankles
- Keep knees together
- Rotate feet apart against band
- 3 sets of 15 reps
Fire Hydrants
- Quadruped position (hands and knees)
- Keep knee bent 90°
- Lift knee out to side (like dog at fire hydrant)
- Keep pelvis stable, don't shift weight
- 3 sets of 12-15 each side
Hip Flexors
Supine March
- Lie on back with knees bent
- Lift one knee toward chest
- Lower and repeat with other leg
- Alternate in marching pattern
- Keep core engaged
- 30 seconds to 1 minute
Standing March
- Stand tall, core engaged
- Drive one knee up to hip height
- Lower with control
- Alternate legs
- Can add band around feet for resistance
- 3 sets of 12-15 each leg
Common Mistakes
Compensating with Low Back
Arching lower back during hip extension exercises. Keep core engaged, move from hip.
Rolling Pelvis
Letting pelvis rotate during side-lying exercises. Keep hips stacked.
Using Momentum
Swinging legs instead of controlled movement. Slow, controlled reps are more effective.
Ignoring One Side
Only training surgical side. Both hips need attention for balanced function.
Sample Hip Workout
| Exercise | Sets | Reps |
|---|---|---|
| Glute Bridges | 3 | 15 |
| Side-Lying Hip Abduction | 3 | 15 each |
| Clamshells | 3 | 15 each |
| Hip Hikes | 3 | 12 each |
| Fire Hydrants | 2 | 12 each |
| Monster Walks | 3 | 15 each direction |
Frequency: 3-4x per week | Duration: 20-25 minutes