45 Degree One Leg Hyperextension (Arms In Front Of Chest)
45 Degree One Leg Hyperextension (Arms In Front Of Chest) Exercise Description
The 45-degree one-leg hyperextension is a unilateral hip-hinge performed on a 45-degree back extension bench. With the arms crossed in front of the chest, the movement emphasizes the hip extensors—primarily the gluteus maximus and hamstrings—while the erector spinae maintain a neutral spine isometrically. Working one leg at a time increases the stabilization demand on the pelvis; the gluteus medius/minimus and deep core assist to keep the hips level and resist rotation. The goal is to fold at the hip crease under control, then extend the hip to return to a straight body line without hyperextending the lumbar spine. This variation is useful for reinforcing clean hip-hinge mechanics, improving lumbopelvic control, and addressing side-to-side differences in stability and coordination.
- Muscle Groups: Glutes, Hips
- Target Muscles: Gluteus Maximus
- Assisting Muscles: Biceps Femoris - Long Head, Semitendinosus
- Stabilizing Muscles: Gluteus Medius, Iliocostalis, Longissimus, Multifidus, Transversus Abdominis
- Body Area: Lower Body
- Body Parts: Hips, Legs, Upper Legs
- Body Surface: Back
- Body Symmetry: Unilateral
- Equipment: Bodyweight
- Exercise Patterns: Hinge
- Exercise Type: Strength
- Functional Grouping: Hip Extensors
- Joint Involvement: Multi-joint
- Muscle Location: Glutes
- Movement Direction: Vertical
- Muscle Position: Posterior
- Gender: Female
How To Do The 45 Degree One Leg Hyperextension (Arms In Front Of Chest) Exercise
‘- Set the 45-degree bench so the top pad contacts the upper thighs just below the hip crease, allowing free hip flexion/extension.
– Place one foot centered and stable on the platform; keep the other leg off the platform, straight and aligned with your torso.
– Cross your forearms over your chest; draw shoulders down and back; set a neutral head and neck with eyes toward the floor.
– Brace your abdomen 360° and keep ribs stacked over the pelvis.
– Start in a straight line from head to heel of the working side, hips square and level.
– Hinge by folding at the hips; allow the torso to lower as one unit while the spine stays neutral (no rounding).
– Descend until you feel tension in the hamstrings and can maintain alignment; stop before lumbar motion appears.
– Drive the working hip into extension by pressing through the midfoot/heel and squeezing the glute.
– Rise until your torso (and the free leg) form a straight line with your lower body; avoid hyperextending the low back.
– Keep pelvis level—do not let the hips rotate or the working knee cave inward.
– Maintain steady breathing; avoid holding your breath.
– Control each rep—no bouncing at the bottom or twisting through the trunk.
45 Degree One Leg Hyperextension (Arms In Front Of Chest) Tips
‘- Set the 45-degree bench so the top pad contacts the upper thighs just below the hip crease to allow free hip flexion/extension.
– Place the working foot centered and stable on the platform before starting each set.
– Keep the non-working leg off the platform, straight and aligned with your torso throughout the movement.
– Cross your forearms over your chest and draw the shoulders down and back to set the upper body.
– Maintain a neutral head and neck position with your eyes looking toward the floor.
– Brace your abdomen 360° and keep your ribs stacked over the pelvis during the entire rep.
– Start each rep in a straight line from head to heel of the working side with hips square and level.
– Hinge by folding at the hip crease so the torso lowers as one unit while the spine stays neutral.
– Descend only until you feel hamstring tension and can maintain alignment, stopping before any lumbar motion appears.
– Drive the working hip into extension by pressing through the midfoot/heel and squeezing the glute.
– At the top, finish when your torso and free leg form a straight line with your lower body, avoiding hyperextension of the low back.
– Keep the pelvis level—do not let the hips rotate or the working knee cave inward.
– Control each rep with no bouncing at the bottom or twisting through the trunk, and maintain steady breathing without holding your breath.
45 Degree One Leg Hyperextension (Arms In Front Of Chest) Beginner Introduction
The 45-degree one-leg hyperextension is a single-leg hip-hinge variation performed on an angled back-extension bench. With the upper body supported by the pad and the forearms folded across the chest, one leg provides the base while the other stays extended in line with the body. This setup directs most of the work into the glutes and the back of the thighs, while the muscles along the spine hold the trunk steady. The core also contributes by keeping the middle of the body firm so the hips do not tip or twist.
The movement centers on controlled bending from the hips and then straightening back to a long, straight posture without arching excessively through the lower back. Because only one leg is bearing weight, the glutes on the working side and the outer hip area are challenged to keep the pelvis even and stable. This makes the exercise useful for practicing a clean hinging pattern, refining hip and lower-back coordination, and highlighting any right-to-left differences in balance or control.