Raised Legs Crunch Tutorial
Raised legs crunch is a bodyweight ab exercise where you crunch with your legs held straight up and your elbows out. Lifting the legs changes leverage so your upper abs work harder while limiting hip momentum. This makes it a great choice for anyone learning how to do crunches with better control and less swinging.
It is ideal for beginners building core awareness and for intermediate lifters who want cleaner technique. Focus on slow, controlled reps, keeping your lower back gently pressed into the floor and your neck relaxed.
Benefits
- Builds strong and defined upper abs.
- Reduces momentum compared to floor crunches.
- Improves core control and awareness.
- Requires no equipment and little space.
- Easy to scale by tempo and reps.
- Supports better posture through core strength.
Setup & Starting Position
Start by lying flat on your back on a comfortable floor or mat. Extend your legs straight up toward the ceiling so your hips are bent to about 90 degrees. Keep your knees straight but relaxed, toes pointing upward.
Place your hands lightly behind your head with your elbows flared out to the sides. Do not interlock your fingers tightly or pull on your neck. Your head should rest on the floor with your chin slightly tucked, as if holding a tennis ball under it.
Before the first rep, gently press your lower back into the floor by tightening your abs. This creates a stable base and protects your spine. Let your shoulders relax down and prepare to move slowly.
Quick setup tip: If your legs drift or wobble, lightly squeeze your inner thighs to keep them stacked over your hips.
How To Do Raised legs crunch (Step-by-step)
- Lie on your back with legs straight up and arms behind your head.
- Set your elbows wide and relax your neck.
- Brace your abs and press your lower back into the floor.
- Exhale and lift your head and shoulders off the ground.
- Crunch upward until your shoulder blades clear the floor.
- Keep legs vertical and still throughout the movement.
- Pause briefly at the top while squeezing your abs.
- Inhale and lower slowly with control.
- Return until your shoulders lightly touch the floor.
- Reset tension and begin the next rep.
Form Cues
- Elbows wide, neck relaxed.
- Lower back stays down.
- Crunch up, not forward.
- Slow and controlled reps.
- Legs stacked over hips.
Breathing & Bracing
Proper breathing makes this exercise safer and more effective. Before each rep, take a small inhale through your nose and gently tighten your abs as if preparing for a cough. This creates abdominal bracing without holding your breath.
As you lift your shoulders into the crunch, exhale through your mouth. The exhale helps your ribs move down and allows the abs to contract more fully. Keep the breath steady, not forced.
At the top of the crunch, maintain tension for a brief moment while continuing to breathe out. As you lower back down, inhale again and keep your core lightly engaged so your lower back does not arch.
A simple rhythm to repeat is: inhale at the bottom, exhale on the way up, inhale as you lower. This keeps your core active while preventing breath holding and neck tension.
Common Mistakes
- Pulling on the head with hands, fix by keeping hands light and elbows wide.
- Letting legs drift or bend, fix by stacking legs over hips.
- Arching the lower back, fix by bracing abs before each rep.
- Rushing the movement, fix by slowing the lowering phase.
- Leading with the chin, fix by lifting chest toward ceiling.
How It Should Feel
Quick self-check: During raised legs crunches, you should feel a strong contraction in the front of your abs, especially above the belly button. The movement should feel controlled and deliberate, not jerky.
Good signs:
- Burning or fatigue in the abs after several reps.
- Stable legs that stay vertical.
- Minimal neck and shoulder strain.
Warning signs:
- Sharp pain in the neck or lower back, stop immediately.
- Feeling it mostly in the hip flexors.
If you feel neck tension, lighten your hand contact and focus on lifting your chest. If your lower back feels uncomfortable, reduce range of motion and re-brace before each rep.
Alternative Names
Vertical leg crunch, Legs up crunch
Variations
Easier
- Bent knee raised crunch, bend knees while keeping thighs vertical to reduce leverage.
- Partial range crunch, lift shoulders only a few inches and focus on control.
Harder
- Slow tempo raised legs crunch, add a 3 to 4 second lowering phase.
- Raised legs crunch hold, pause for 5 to 10 seconds at the top.
Sample Workout
Core Focused Bodyweight Workout
- Raised Legs Crunch
3 sets of 12 to 15 reps - High Plank
3 sets of 20 to 40 seconds - Dead Bug
3 sets of 8 to 10 reps per side
Rest 30 to 60 seconds between sets. Use raised legs crunch as your main ab strength movement, focusing on clean technique.
Progression Plan
Week 1: Perform 3 sets of 10 to 12 reps with a steady tempo. Focus on setup, breathing, and keeping your legs still. Rest 60 seconds between sets. If form breaks down, reduce reps.
Week 2: Increase to 3 sets of 14 to 16 reps. Add a brief 1 second pause at the top of each rep. Rest 45 seconds between sets.
Week 3: Keep reps the same but slow the lowering phase to 3 seconds. This increases time under tension without adding reps.
When you can complete all sets with full control and no neck strain, move to an advanced variation such as slow tempo or holds. If you lose form or feel discomfort, repeat the previous week and focus on quality.
FAQ
How many reps should I do?
Most people do well with 10 to 20 controlled reps per set.
Is this safe for beginners?
Yes, if you move slowly and keep your lower back pressed into the floor.
Should my legs be perfectly straight?
They should be straight but relaxed, do not lock the knees.
Can I do this every day?
You can, but allow rest if your abs feel very sore.
Summary
Raised legs crunch is a simple yet powerful way to strengthen your abs using only your bodyweight. By keeping your legs straight up and elbows wide, you reduce cheating and learn better core control.
Take your time with each rep, breathe with intention, and focus on quality over quantity. Whether you are following a how to guide for ab training or refining your crunch technique, this exercise fits easily into almost any core routine.
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