A hip bridge, also called a glute bridge, is a bodyweight exercise where you lie on your back, bend your knees, and lift your hips toward the ceiling. It targets the glutes and hamstrings while strengthening the muscles that stabilize your lower back and pelvis. It requires no equipment, works for nearly every fitness level, and is one of the most commonly prescribed exercises in both physical therapy and strength training.
Muscles Worked During a Hip Bridge
The primary movers are the gluteus maximus (the large muscle of the buttock) and the hamstrings along the back of your thigh. Both contribute to the hip extension that drives your hips upward, though their relative contribution shifts depending on foot placement. EMG studies measuring muscle activation during a standard two-leg bridge show the gluteus maximus fires at roughly 34% of its maximum voluntary contraction, while the hamstrings fire at about 28%. Those numbers climb significantly with single-leg and banded variations.
Beyond the glutes and hamstrings, the bridge recruits a network of stabilizing muscles in your trunk. Your internal obliques, external obliques, and the deep transverse abdominis all engage to keep your pelvis level and your spine from arching. The erector spinae muscles along your lower back contribute as well. This coordinated activation of large and small muscles is what makes the bridge so effective for trunk stability, not just raw glute strength.
How to Do a Hip Bridge With Proper Form
Lie on your back with your knees bent and feet flat on the floor, about hip-width apart. Point your toes straight ahead and position your heels roughly 6 to 8 inches from your glutes. Place your arms at your sides with palms down.
Before you lift, tuck your pelvis slightly so your lower back presses gently toward the floor. This engages your core and sets you up to drive the movement from your glutes rather than your lower back. From there, press through your heels and raise your hips until your body forms a straight line from your knees through your hips to your shoulders. Hold for a beat at the top, then lower with control.
The most important alignment cue: your back should not arch at the top. If you feel the effort mostly in your lower back rather than your glutes, come back down and reset. Re-tuck your pelvis, engage your abs, and try again. The goal is a neutral spine throughout the movement.
Common Mistakes That Reduce Effectiveness
The number one error is arching the lower back to push the hips higher. When your back arches, your pelvis tilts forward, your core disengages, and your lower back takes over the work your glutes should be doing. This not only defeats the purpose of the exercise but puts unnecessary strain on your spine. Think about squeezing your glutes at the top rather than reaching for maximum height.
Other common problems include letting the knees cave inward, which reduces glute activation, and placing the feet too far from the hips, which shifts more work to the hamstrings. If your hamstrings cramp during bridges, try moving your feet a few inches closer to your body. Conversely, if you intentionally want to emphasize the hamstrings, placing your feet farther away or on an elevated surface does exactly that.
Why Hip Bridges Help With Back Pain
The bridge is one of the most widely used exercises in lower back rehabilitation. It relieves pain and improves physical functioning by training the large and small muscles of the trunk to work together in coordinated patterns. Research in the Journal of Physical Therapy Science found that bridge exercises effectively achieved trunk stability even at low training intensities, making them accessible for people in pain who can’t tolerate high-load exercises.
People with back and hip problems are often taught the bridge specifically because it facilitates pelvic motion while strengthening the hip extensors and enhancing motor control of the lower back and pelvis. The deep abdominal muscles that activate during the bridge, particularly the internal obliques, connect to the lumbar spine through a sheet of connective tissue called the thoracolumbar fascia. When these muscles engage, they increase stiffness in the lumbar spine, which translates to better support and less pain during daily movement.
There’s also a postural benefit. Many people spend hours sitting, which shortens the hip flexors at the front of the hip and weakens the glutes. The bridge reverses both of these effects simultaneously: the glutes contract and strengthen while the hip flexors on the opposite side of the joint lengthen.
Variations and How to Progress
The standard two-leg bridge is the starting point. Once you can perform it comfortably with good form, several progressions increase the challenge without changing the basic movement pattern.
- Marching bridge: Hold the top position and lift one foot off the ground, alternating sides. This is a stepping stone toward single-leg work. A smaller progression is lifting just the heel while keeping the forefoot on the ground.
- Single-leg bridge: Extend one leg fully and drive through the planted foot. This roughly doubles the load on the working glute and significantly increases muscle activation compared to the two-leg version.
- Banded bridge: Place a resistance band just above both knees and press outward against it as you bridge. This recruits the gluteus medius (the muscle on the side of the hip) by adding a hip abduction and external rotation demand on top of the extension. EMG data shows this variation produces meaningfully higher glute activation than the standard bridge.
- Elevated bridge: Place your feet on a bench or step. This increases the range of motion at the hip and shifts more work to the hamstrings, which is useful for building posterior chain strength or rehabilitating hamstring injuries.
- Spine-articulating bridge: Instead of lifting the hips as a single unit, peel the spine off the floor one vertebra at a time, starting from the tailbone. This variation emphasizes spinal mobility and is particularly helpful for people with stiffness in the lower back.
- Ball squeeze bridge: Place a ball or pillow between the knees and squeeze inward as you lift. This targets the inner thigh muscles, which also contribute to hip extension, especially in deeper ranges of hip flexion.
Performing bridges on an unstable surface like a foam pad or BOSU ball increases activation of the deep abdominal muscles compared to a stable surface. This can be a useful progression for core training, though it’s not necessary for most people to get strong results from the exercise.
Sets, Reps, and Programming
For general strength and glute activation, 3 sets of 10 to 15 repetitions works well. Hold each rep at the top for 1 to 2 seconds to maximize time under tension. If you’re using bridges as a warm-up before squats or deadlifts, 2 sets of 10 at a controlled pace is enough to wake up the glutes without fatiguing them.
For rehabilitation or endurance-focused work, higher rep ranges of 15 to 20 with a sustained hold at the top emphasize muscular endurance and trunk stability. For building strength, progress to single-leg variations or add weight across the hips (a barbell, dumbbell, or heavy plate) and work in the 8 to 12 rep range. The movement pattern stays the same regardless of the load; only the resistance changes.