Exercise
ABDOMINAL HIP ROLL
Form cues
About
The Abdominal Hip Roll is a supine rotational core exercise targeting the obliques and hip flexors by sweeping the knees side to side with legs raised. The controlled rotation under load develops the rotational stiffness and spinal proprioception needed for twisting movements in sport and daily life. Unlike crunches, it trains the core in the transverse plane — the plane most often neglected in standard ab training.
Instructions
Step-by-step technique
Starting Position
Lie flat on your back with your arms extended out to the sides in a T-shape. Lift your knees to a 90-degree angle so your thighs are vertical.
Lower Knees Right
Keeping your shoulders flat on the floor, slowly lower both knees together to the right side. Lower only as far as you can while keeping the left shoulder down.
Return & Switch
Pause briefly, then use your core to pull the knees back to center. Lower to the left side and repeat.
Continue Alternating
Continue alternating sides for the desired reps. The movement should be slow and controlled — resist letting momentum drive the knees from side to side.
Why It Works
The abdominal hip roll targets the obliques and deep rotational core muscles through a controlled rotational range of motion.
Common mistakes
What goes wrong — and why
Letting the legs drop uncontrolled
Allowing gravity to swing the legs to each side turns the exercise into a passive stretch rather than an active muscular movement.
Slow the descent to a 3-count and use the obliques to resist the rotation throughout. The control, not the position, is the stimulus.
Allowing the opposite shoulder to lift
When the legs roll to one side, the opposite shoulder lifting off the mat indicates the rotation is coming from the thoracic spine rather than the hips — correct for thoracic mobility but not for oblique targeting.
Keep both shoulder blades in contact with the floor throughout. The rotation should stop when the shoulder wants to lift.
Moving through too large a range too quickly
Touching knees to the floor on each side without sufficient core strength forces compensation patterns and can strain the lumbar spine.
Start with smaller rotations (45°) and only progress to larger ranges once full control is established at the smaller range.
Variations · Progressions · Regressions
Adaptations for every level
Supine Knee Sway (Feet on Floor)
Lie on your back with feet flat and let both knees fall gently to each side. Significantly less load than raised legs and suitable for those with lower back sensitivity.
Straight Leg Hip Roll
Perform the same rolling movement with legs straight rather than bent. Longer lever arm increases the oblique challenge and also stretches the IT band and hip rotators.
Weighted Hip Roll
Hold a light weight between the feet while performing the movement. Increases the rotational load on the obliques without changing the movement pattern.