The prone hip extension is a bodyweight isolation exercise performed lying face down, lifting one straight leg off the floor to work the glutes through hip extension. It is a low-impact way to build glute strength and activation without any equipment, making it common in warm-ups, rehab programs, and accessory glute work. Because the hips stay pinned to the floor, the exercise isolates hip extension without recruiting momentum from the rest of the body.
Muscles Targeted
- Primary: Gluteus maximus
- Secondary: Hamstrings, erector spinae (lower back)
- Tertiary: Core stabilizers
Starting Position
Lie face down on a mat with your legs fully extended and toes pointed toward the floor. Rest your forehead on stacked hands or a small pad to keep your neck neutral. Brace your core lightly so your hips stay flat against the floor before you move either leg.
Execution Steps
- Brace your core and press your hip bones into the floor to lock the pelvis in place
- Lift one leg straight up off the floor, leading with the heel and keeping the knee extended
- Raise the leg only as high as you can without your hips rotating or lifting off the floor, typically 8-12 inches
- Squeeze the glute briefly at the top of the movement
- Lower the leg under control back to just above the floor
- Complete all reps on one side, then repeat with the opposite leg
Form Cues
- Keep the hips pinned: Your pelvis should stay flat on the floor throughout - if it rotates or lifts, you've raised the leg too high
- Lead with the heel: Driving through the heel keeps the glute, not the lower back, doing the work
- Avoid lower back arching: A subtle core brace prevents the lumbar spine from taking over the movement
- Keep the knee straight: A locked-out knee keeps tension on the glute and hamstring rather than shifting to the hip flexor
- Move slowly: Fast, jerky reps rely on momentum instead of muscle control
Common Mistakes
- Compensating with the lower back: Arching the spine to lift the leg higher shifts stress to the lumbar spine instead of the glute. Keep the range of motion modest and controlled.
- Rotating the hips: Letting the pelvis twist to gain extra height reduces glute isolation. Keep both hip bones square to the floor.
- Using momentum: Kicking the leg up quickly instead of lifting it under control reduces muscle activation. Slow the tempo down.
- Holding the breath: Tensing up and holding your breath increases unnecessary strain. Breathe naturally throughout each rep.
- Overextending the range: Lifting the leg as high as possible isn't the goal - height beyond what the glute can control just transfers load to the back.
Variations
- Bent-knee prone hip extension: Bending the knee to 90 degrees shortens the hamstring's use and shifts more emphasis to the glute
- Banded prone hip extension: Adding a light ankle band increases resistance for more advanced trainees
- Quadruped hip extension (donkey kick): Performed on hands and knees, allowing a larger range of motion with less spinal loading
- Roman chair (GHD) hip extension: Uses a hip extension bench to add range of motion and external load progression
- Standing cable kickback: Replaces the floor position with a cable machine for progressive overload
Tips for Progression
- Add a 2-3 second pause at the top of each rep to increase glute time under tension
- Increase reps toward 15-20 per side before adding external resistance
- Add a light ankle band or cuff weight once bodyweight reps feel easy
- Progress to the quadruped or Roman chair variation for a larger range of motion
Training Notes
Use prone hip extensions 2-3 times per week as a glute activation drill before lower-body training or as a light accessory finisher. Perform 2-3 sets of 12-15 reps per leg with minimal rest (20-30 seconds) between sides. It pairs well early in a session as a warm-up for squats, lunges, or deadlifts, since it wakes up the glutes without fatiguing them significantly.