Crunch Leg Raise

Body Part: Waist

Muscle: Abs

Equipment: Body Weight

Crunch Leg Raise is a bodyweight abdominal exercise for the abs, obliques, hip flexors, and deep core. Combining the crunch with a leg raise asks the torso to control both the ribs and the pelvis, which makes the movement a little more demanding than a plain crunch. It works best when the curl stays compact and the legs do not take over the set.

The main emphasis is the abs, obliques, hip flexors, and deep core. The supporting muscles keep the body stable so the target area can do the work instead of momentum taking over. A good rep feels like the ribs and legs are moving together under control, with the neck relaxed and the lower back staying organized instead of arching hard.

Start by setting up carefully. Set up on the floor, bench, decline bench, or ball as the exercise name describes. Brace your abs and keep your neck relaxed. Position your arms and legs according to the variation. This setup determines whether the exercise feels precise or rushed, so take a moment to find a position where the torso can curl without strain.

Move through the rep with a smooth tempo. Exhale as you curl your ribs toward your pelvis. Pause briefly at the strongest abdominal contraction. Lower under control without dropping. Return to the starting position without dropping, twisting, or relaxing the posture. If the leg raise starts to overpower the crunch, shorten the range and make the curl the priority.

Use the form cues to keep the movement specific. Lift with the abs, not the neck. Keep the reps slow and controlled. Do not use arm swing for momentum. Exhale during the crunch. If those cues become hard to maintain, reduce the range, speed, or difficulty.

Use Crunch Leg Raise in a focused core block or accessory section. Progress by improving control first, then adding reps, hold time, range, or tempo only when the current version stays clean.

Instructions

• Set up on the floor, bench, decline bench, or ball as the exercise name describes.
• Brace your abs and keep your neck relaxed.
• Position your arms and legs according to the variation.
• Exhale as you curl your ribs toward your pelvis.
• Pause briefly at the strongest abdominal contraction.
• Lower under control without dropping.
• Keep the lower back comfortable throughout.
• Repeat with the same range each rep.

Tips & Tricks

• Lift with the abs, not the neck.
• Keep the reps slow and controlled.
• Do not use arm swing for momentum.
• Exhale during the crunch.
• Stop before the lower back arches.
• Use a smaller range if hip flexors dominate.
• Keep both sides even on twisting versions.
• End the set when form turns jerky.

Frequently Asked Questions

What muscles does Crunch Leg Raise work?

Crunch Leg Raise mainly works the abs, obliques, hip flexors, and deep core. Stabilizers help keep the body aligned through the movement.

Is Crunch Leg Raise good for beginners?

Yes. Use an easier variation, lighter load, or smaller range until every rep is controlled.

How many reps should I do?

Most strength versions work well for 8 to 15 controlled reps. Mobility drills can be done for slow reps or short holds.

What is the most common mistake?

The most common mistake is rushing and using momentum instead of keeping the target area in control.

Should Crunch Leg Raise hurt?

No. Muscle effort or mild stretching is normal, but sharp pain, pinching, tingling, or dizziness means you should stop.

When should I use Crunch Leg Raise?

Use it where it matches the goal: warmup and mobility early, strength work in the main session, or accessory work near the end.

What should lead the movement, the crunch or the leg raise?

The crunch should lead; the legs should follow without taking over the set.