Skip to content
Crucible Fit
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Pricing
Get Crucible
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing
  • FAQ
  • Training Guides
Get Crucible
Crucible Fit

A daily functional fitness test for iPhone, Apple Watch and Android. Stations, reps and the Crux, sized to your readiness and your kit.

Download on the App StoreGet it on Google Play

Crucible Fit

  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing

Explore

  • Training Guides
  • Exercise Library
  • FAQ
  • Press
  • Support

Legal

  • Terms and Conditions
  • Privacy Policy
  • Consumer Health Data Notice

CRUCIBLE FIT™ and Crux by Crucible Fit are trademarks of Crucible Fit, LLC.

© 2026 Crucible Fit, LLC. All rights reserved. Apple, the Apple logo, iPhone and Apple Watch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc. Google Play and the Google Play logo are trademarks of Google LLC.

  1. Home
  2. /
  3. Exercises
  4. /
  5. Back
  6. /
  7. 45 Degrees Single Leg Reverse Hyperextension

Exercise guide

45 Degrees Single Leg Reverse Hyperextension

  • Intermediate
  • Isolation
  • Rep-based
  • Back
  • Hips
  • Lower legs

This unilateral variation of the reverse hyperextension isolates the glutes and erector spinae while correcting muscle imbalances and improving pelvic stability. The 45-degree angle provides a unique resistance profile that emphasizes the peak contraction of the gluteus maximus.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the 45 Degrees Single Leg Reverse Hyperextension demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Erector spinae
  • Glutes
  • Hamstrings

Secondary

  • Abs
  • Obliques

Equipment

  • Body weight

Setup

  1. Face the 45-degree hyperextension bench and lean your torso over the pad so your hips are supported at the top edge.
  2. Grip the handles firmly to stabilize your upper body and pull your chest into the pad.
  3. Place one foot securely on the footplate for support, while the working leg hangs straight down toward the floor.
  4. Engage your core and ensure your spine is in a neutral, straight line from head to hips.

How to do it

  1. Exhale and lift the working leg backward and upward by squeezing the glute, keeping the knee fully extended.
  2. Raise the leg until it is in line with your torso, focusing on moving through the hip rather than arching the lower back.
  3. Pause for one second at the top of the movement to maximize the mind-muscle connection with the glute.
  4. Inhale and slowly lower the leg back to the starting position using a controlled 2-3 second eccentric tempo.

Form checklist

  • Keep your hips square to the pad; do not allow the pelvis to rotate as the leg rises.
  • Avoid using momentum or swinging the leg; the movement should be slow and deliberate.
  • Maintain a neutral neck by looking at a point slightly in front of the bench.
  • Ensure the non-working leg remains stable and does not assist in the lift.

Pro tips

  • Drive your hips hard into the pad as you lift the leg to prevent the lower back from taking over the movement.
  • Slightly rotate your working foot outward (external rotation) to increase the recruitment of the gluteus medius and upper glute fibers.

Make it harder

  • Wear ankle weights on the working leg to increase the resistance at the end of the lever arm.
  • Perform a 3-5 second isometric hold at the top of every repetition to increase time under tension.

Frequently asked

What muscles does the 45 degrees single leg reverse hyperextension work?
The 45 degrees single leg reverse hyperextension primarily targets the erector spinae, glutes, and hamstrings, and also works the abs and obliques as secondary muscles.
What equipment do you need for the 45 degrees single leg reverse hyperextension?
The 45 degrees single leg reverse hyperextension requires no equipment — just your body weight.
Is the 45 degrees single leg reverse hyperextension good for beginners?
The 45 degrees single leg reverse hyperextension is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • Bent Over Knee RotationBeginner · erector spinae, glutes, and hamstrings
  • Side Kick BurpeeIntermediate · calves, erector spinae, glutes, hamstrings, hip flexors, and quadriceps
  • Worlds Greatest StretchIntermediate · erector spinae, glutes, hamstrings, hip flexors, obliques, and quadriceps
  • Banded Glute Ham RaiseIntermediate · glutes and hamstrings

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

Download on the App StoreGet it on Google Play

See how a Crucible works