Supine hip extension refers to the movement of extending the hip while in the supine (lying on back) position. In practice, this covers a specific set of exercises where the hip moves from a flexed position toward extension while the person is lying on their back, with the primary purpose of activating and strengthening the hip extensors (gluteus maximus and hamstrings) in a position that minimises spinal loading and balance demands.
The supine hip extension occupies a specific niche between the glute bridge (a supine hip extension performed with both knees bent and both feet on the floor, which produces a thrust of the hips upward) and prone hip extension (performed face down with the leg lifted behind the body). The supine hip extension exercises described here are simpler, more accessible variations used primarily in rehabilitation and foundational hip strengthening contexts.
Clarifying the Terminology
Before covering technique, it is worth clarifying how supine hip extension is used in different contexts, because the term is applied to several different exercises:
In rehabilitation and exercise therapy: Supine hip extension typically refers to the movement of straightening (extending) one or both hips from a bent position while lying on the back. This is the primary meaning used in this guide.
In some clinical protocols: Supine hip extension refers specifically to a passive or active-assisted movement where the clinician assesses or improves hip extension range while the patient lies on their back.
In other fitness contexts: Supine hip extension is sometimes used interchangeably with the glute bridge. As covered extensively in the glute bridge series on this site (single leg glute bridge exercise, glute bridges with resistance bands, feet elevated glute bridge, stability ball glute bridge, glute bridge with abduction, marching glute bridge), the glute bridge is a specific and well-developed exercise progression. This guide covers the foundational supine hip extension movements that precede or complement the bridge series.
What Supine Hip Extension Trains
The supine hip extension exercises in this guide develop:
Gluteus maximus activation: The primary hip extensor is activated as the hip moves from flexion toward extension in the supine position. This is the foundational activation pattern that the glute bridge builds upon.
Hamstring activation: The hamstrings contribute to hip extension alongside the glutes in all supine hip extension variations.
Hip extension range of motion: The movement through hip extension range in a supported position is used in rehabilitation to restore or maintain hip extension mobility that may be lost following surgery, injury, or prolonged hip flexion positioning.
Core anti-extension stability: As the leg extends, the hip flexors are lengthened and the lumbar spine is challenged to maintain its position against the extension force. The core must resist this force, developing the anti-extension stability that protects the lumbar spine during hip extension activities.
Muscles Targeted
Primary:
- Gluteus maximus: Primary hip extensor driving the return from flexion to extension
- Hamstrings (biceps femoris, semitendinosus, semimembranosus): Assist with hip extension throughout
Secondary:
- Gluteus medius and minimus: Stabilise the pelvis against lateral forces during single-leg variations
- Core (anti-extension): Resist the lumbar extension force during the hip extension movement
- Adductors: Medial hip stability throughout
Why the Supine Position for Hip Extension
The supine position for hip extension offers specific advantages in appropriate contexts:
Complete spinal support: Unlike prone hip extension (lying face down and lifting the leg) or standing hip extension, the supine position supports the entire spine against the floor, minimising spinal loading during the hip extension exercise.
Gravity-assisted hip extension range: When the leg is extended from a bent position in the supine position, gravity assists the movement toward extension rather than resisting it. This is specifically useful when restoring hip extension range of motion after surgery or injury, where the goal is gentle movement through the range rather than resistance against it.
Accessible starting position: For people who cannot comfortably lie face down (during pregnancy, with abdominal discomfort, or with thoracic kyphosis), the supine position allows hip extension exercises without the prone position.
Pelvic monitoring: The floor provides a direct reference for pelvic position, making it easy to detect and correct excessive lumbar extension or pelvic anterior tilt during the exercise.
Step-by-Step Technique
Variation 1: Supine Hip Extension (Single Leg Lowering)
This is the most fundamental supine hip extension exercise, involving lowering one leg from a flexed position toward the floor while controlling the lumbar spine.
How to do it:
- Lie on the back with both knees bent to approximately 90 degrees, feet flat on the floor
- Lift one knee toward the chest to increase the hip flexion range
- From this lifted position, slowly lower the leg toward the floor by straightening the knee and extending the hip
- Control the lowering phase over 3 to 4 seconds
- The foot returns to the floor or hovers just above the floor in the fully extended position
- Return the knee toward the chest and repeat
- Complete all reps on one side before switching
What this develops: This movement specifically develops the eccentric control of hip extension, which is the control of the hip flexors and extensors during the lowering of the leg. The lower back must be monitored throughout: as the leg extends toward the floor, the hip flexors lengthen and the lumbar spine is challenged to resist extension. The lower back should remain in contact with the floor (with its natural small lumbar curve) throughout.
Sets and reps: 3 sets of 10 to 12 per side
Variation 2: Supine Hip Extension (Heel Slide)
A simpler version that keeps the heel in contact with the floor throughout, reducing the gravitational demand.
How to do it:
- Lie on the back with both knees bent, feet flat on the floor
- Slide one heel away from the body along the floor until the leg is fully extended
- The hip extends as the knee straightens
- Hold briefly in the fully extended position
- Slide the heel back to the starting position
- Complete all reps on one side before switching
When this version is appropriate: Very early post-surgical rehabilitation (within the first week after hip surgery or following procedures where the hip must be kept in a supported position), or for older adults who cannot yet control the leg-lowering version.
Sets and reps: 3 sets of 12 to 15 per side
Variation 3: Supine Hip Extension (Active)
A more deliberate version where the hip extension is performed actively against gravity with the leg slightly elevated.
How to do it:
- Lie on the back with one leg extended on the floor and the other knee bent with foot flat
- Lift the extended leg approximately 10 to 15 centimetres off the floor
- From this elevated position, deliberately contract the glute and drive the leg slightly further into extension (press the leg downward slightly)
- Hold the contraction for 3 seconds
- Release and repeat
- This is an isometric or near-isometric hip extension exercise in the supine position
What this develops: The deliberate glute contraction in the extended position develops the terminal hip extension strength that is the most functionally relevant component of the glute bridge and hip thrust. It is specifically used to develop glute activation awareness before the bridge exercises are introduced.
Sets and reps: 3 sets of 10 per side, 3-second hold
Variation 4: Supine Hip Extension With Bent Knee (Bridge Preparation)
A transitional exercise between the simpler supine hip extension movements and the full glute bridge.
How to do it:
- Lie on the back with one knee bent and foot flat on the floor, and the other leg extended on the floor
- Drive through the heel of the bent leg to lift the hips slightly off the floor on the bent-leg side
- The extended leg remains on the floor throughout
- This is a partial single-leg bridge with minimal elevation, appropriate for building toward the full glute bridge
- Hold for 2 seconds at the top
- Lower slowly
- Complete all reps on one side before switching
Sets and reps: 3 sets of 10 per side
Variation 5: 90/90 Hip Extension (Tabletop to Extended)
A more advanced variation where the hip moves from the 90/90 position (both hips and knees at 90 degrees in the air) to a single-leg extension while the other knee remains at 90 degrees.
How to do it:
- Lie on the back with both hips and knees at 90 degrees (both feet in the air, shins parallel to the floor)
- Slowly lower one leg toward the floor while extending the knee
- The other leg remains at 90/90 throughout
- Control the descent over 3 to 4 seconds
- Stop the leg just before it touches the floor and return it to the 90/90 position
- Alternate legs
What this develops: This is the most demanding supine hip extension variation described here. It specifically develops the anti-extension core stability and the eccentric hip flexor control that are the primary training demands of the exercise. It is essentially the same movement as one leg of the dead bug exercise described in the isometric core exercises article on this site.
Sets and reps: 3 sets of 8 per side
Key Technique Points Across All Variations
Lumbar spine monitoring: The single most important technical point in all supine hip extension exercises. As the hip extends, the hip flexors lengthen and exert a pull on the lumbar vertebrae that tends to arch the lower back. Place one hand under the lower back to monitor the lumbar position throughout each variation.
Heel drive: In variations where the foot is in contact with the floor, pressing through the heel ensures the glutes rather than the hamstrings are the primary hip extensor. This carries the same heel-drive principle from the glute bridge into the more basic supine hip extension movements.
Glute squeeze at full extension: In all variations, a deliberate glute contraction at the fully extended position develops the terminal hip extension strength and the neural connection to the gluteus maximus that is the primary goal of the exercise.
Controlled eccentric phase: The lowering of the leg (eccentric hip extension control) is as important as the lifting or active extension. Control the return phase over 2 to 3 seconds in all variations.
Progressions: From Supine Hip Extension to Glute Bridge
The natural progression pathway from the supine hip extension exercises above leads directly into the glute bridge series:
- Supine heel slide: Entry-level, very early rehabilitation
- Supine leg lowering (single leg): Control through range, anti-extension
- Supine active hip extension with hold: Glute activation awareness
- Bridge preparation (bent-knee single leg, minimal elevation): Transition to bridge
- Bilateral glute bridge: As covered in the glute bridges with resistance bands and related articles on this site
- Single-leg glute bridge: As covered in the single leg glute bridge exercise article on this site
- Banded and loaded bridge variations: As covered in the glute bridge series on this site
- Hip thrust: As covered in the hip thrusting article on this site
This progression provides a complete pathway from the most accessible supine hip extension to the most loaded hip extension exercises.
Rehabilitation Applications
Post-Hip Surgery
As with the supine hip abduction and supine hip flexion covered in the preceding articles on this site, supine hip extension exercises are among the first prescribed after hip replacement and hip arthroscopy. The heel slide version (Variation 2) is typically initiated within the first week post-surgery.
Progression timeline:
- Days 1 to 7: Heel slide, 3 x 10 per side
- Weeks 2 to 3: Leg lowering (Variation 1), 3 x 10 per side
- Weeks 3 to 6: Active hip extension with hold (Variation 3), 3 x 10 per side
- Weeks 6 to 12: Progress to glute bridge as surgical healing allows
Post-hip replacement precautions: As noted in the supine hip flexion article, exercise following hip replacement should always be conducted within the specific precautions prescribed by the treating physiotherapist.
Lumbar Rehabilitation
Supine hip extension exercises, particularly the 90/90 leg lowering variation (Variation 5), are used in lumbar rehabilitation to develop the anti-extension core stability that protects the lumbar spine during hip extension activities. The supported supine position allows this training without the spinal loading of prone or standing hip extension exercises.
Older Adult Hip Strengthening
For older adults who cannot yet manage the full glute bridge, supine hip extension exercises provide the foundational posterior chain activation that builds toward bridge exercises. The heel slide and leg lowering versions are accessible to most older adults and can be performed on a firm bed if the floor is not accessible.
Hip Flexor Strain Recovery
As covered in the psoas muscle pain and pull symptoms article on this site, the early rehabilitation of hip flexor strains involves gentle, pain-free range of motion. The supine hip extension movements (moving from hip flexion toward extension) are appropriate early-rehabilitation exercises because they take the hip through the extension range without the active hip flexion loading that would directly stress the injured tissue.
Programming Guidance
As a standalone rehabilitation exercise:
3 sets of 10 to 15 per side of the appropriate variation, daily or 4 to 5 times per week. The low intensity of the basic variations allows daily use.
As part of a supine hip strengthening circuit:
The supine hip trilogy (abduction, flexion, extension) forms a complete foundational hip strengthening circuit:
- Supine hip abduction: 3 x 12 per side
- Supine hip flexion: 3 x 12 per side
- Supine hip extension: 3 x 12 per side
- Perform 4 to 5 times per week
This circuit is particularly appropriate for post-surgical rehabilitation, older adult programmes, and anyone establishing a foundational hip strengthening base before progressing to the bridge and standing exercise series.
As a bridge preparation exercise:
The bridge preparation variation (Variation 4) can be used directly before the glute bridge in a training session to establish the glute activation pattern before the full bridge movement.
As a warm-up:
The active hip extension with hold (Variation 3) is an effective pre-training glute activation exercise, developing the terminal hip extension contraction before squats, deadlifts, or running.
Frequently Asked Questions
Is supine hip extension the same as a glute bridge?
The glute bridge is a form of supine hip extension, but the two terms are not interchangeable in clinical and training use. The glute bridge is a specific exercise where both feet are on the floor and the hips are thrust upward into extension. The supine hip extension exercises in this guide are simpler, lower-load movements where the hip moves from a flexed position toward extension while the body remains closer to the floor. They are the foundational level that the glute bridge builds upon, particularly in rehabilitation contexts.
Why is supine hip extension used instead of prone hip extension?
Prone hip extension (lying face down and lifting the leg behind the body) is also an effective glute and hamstring activation exercise. The supine position is preferred when: the patient cannot lie face down comfortably (pregnancy, abdominal surgery, thoracic kyphosis), spinal support is needed throughout the exercise, or the clinician wants to monitor pelvic position from the front. Prone and supine hip extension can coexist in a programme, targeting the same muscles from different positions.
Should I feel supine hip extension in my glutes or my hamstrings?
Ideally both, with the glutes as the primary sensation. The heel-drive cue specifically shifts activation toward the glutes. If the hamstrings are cramping or fatiguing significantly before the glutes, the foot position may be too close to the body (increasing hamstring demand) or the glutes may be inhibited and need pre-activation. Performing clamshells before the supine hip extension exercises can improve glute activation and shift the loading distribution toward the intended primary muscle.
How do I progress from supine hip extension to glute bridges?
Follow the progression pathway described in this guide: begin with the heel slide, progress through the leg lowering and active extension variations, then move to the bridge preparation variation (Variation 4) as the transitional step. Once the bridge preparation can be performed with clear glute activation and no lumbar arching, transition to the bilateral glute bridge as covered in the glute bridges with resistance bands article on this site.