Criss-cross Legs Tutorial
Criss-cross legs is a simple bodyweight abs exercise done lying on your back with straight legs lifted and crossing over each other in the air. It mainly targets the lower abs while also training hip flexors and core control.
This move is great for beginners who want to learn how to engage their core without equipment. Focus on keeping your legs straight, moving with control, and pressing your lower back gently into the floor. This guide and tutorial will show you how to do criss-cross legs with proper technique and breathing.
Benefits
- Strengthens lower abdominal muscles
- Improves core control and coordination
- Teaches how to stabilize the lower back
- Requires no equipment or gym
- Easy to adjust intensity
- Helps build endurance in the abs
Setup & Starting Position
Start by lying flat on your back on a mat or comfortable floor surface. Extend your legs fully so your knees are straight and your feet are together. Place your arms long by your sides with palms facing down. Your head and shoulders stay relaxed on the floor.
Before lifting your legs, gently tighten your core by pulling your belly button slightly toward your spine. Press your lower back lightly into the floor to avoid arching. Lift both straight legs together until they are about 45 degrees from the ground. Keep your toes pointed forward and legs long.
Setup tip: If your lower back arches, raise your legs slightly higher until you can keep contact with the floor.
How To Do Criss-cross legs (Step-by-step)
- Lie on your back with arms at your sides and legs straight.
- Engage your core and press your lower back into the floor.
- Lift both legs to about 45 degrees.
- Cross your right leg over your left leg.
- Switch and cross your left leg over your right leg.
- Continue alternating in a controlled, steady tempo.
- Keep legs straight and core tight throughout.
- Finish by lowering both legs slowly to the floor.
Form Cues
- Lower back pressed into floor
- Legs straight and long
- Small, controlled crosses
- Core tight, ribs down
- Neck and shoulders relaxed
Breathing & Bracing
Breathing correctly during criss-cross legs helps you maintain control and avoid straining your lower back. Begin by taking a calm inhale before lifting your legs. As you start crossing your legs, breathe steadily rather than holding your breath.
A simple rhythm is to exhale for one or two crosses, then inhale for the next one or two crosses. Keep your breathing smooth and quiet. Focus on tightening your core as if you are gently bracing for a cough, without pushing your belly out.
Make sure your ribs stay down and your hips do not tilt forward. If you feel your breathing getting shallow or rushed, slow the movement down. Controlled breathing equals better core engagement and safer technique.
Common Mistakes
- Arching the lower back, fix by lifting legs slightly higher.
- Bending the knees, fix by straightening legs and slowing down.
- Moving too fast, fix by using a steady controlled tempo.
- Lifting the head or shoulders, fix by relaxing upper body.
- Holding breath, fix by using a consistent breathing rhythm.
How It Should Feel
Quick self-check: You should feel a steady burn in the lower abs and front of the hips while maintaining control.
Good signs:
- Tension in the lower abs
- Lower back stays pressed to the floor
- Smooth, controlled leg movement
Warning signs:
- Sharp pain in the lower back, stop immediately
- Neck tension or holding breath
If you feel it mostly in your lower back, raise your legs higher or reduce the range. If your neck feels tense, relax your shoulders and focus on breathing.
Alternative Names
Scissor kicks
Variations
Easier
- Bent-leg criss-cross: Perform the same movement with knees slightly bent.
- Higher-leg criss-cross: Keep legs closer to vertical to reduce load.
Harder
- Low criss-cross legs: Perform crosses with legs closer to the floor.
- Paused criss-cross: Pause briefly while legs are crossed to increase tension.
Sample Workout
Beginner Core Workout
- Dead bug, 10 reps per side
- Criss-cross legs, 20 total crosses
- Glute bridge, 15 reps
- Front plank, 20 seconds
Rest 45 to 60 seconds and repeat for 2 to 3 rounds.
Progression Plan
Week 1: Perform 2 to 3 sets of 10 to 15 total reps, focusing on clean technique and steady breathing. Rest 45 seconds between sets.
Week 2: Increase to 15 to 20 total reps per set. Slow the tempo slightly to improve control. Keep rest the same.
Week 3: Lower the legs closer to the floor or add a short pause when legs cross. Perform 3 sets of 20 reps.
Progress when you can complete all reps with your lower back flat and breathing controlled. Repeat a week if form breaks down or if your lower back feels strained.
FAQ
How high should my legs be?
About 45 degrees is ideal, but higher is fine if your lower back arches.
Should one rep be both sides?
Yes, one rep is counted as a right and left cross together.
Can I do this every day?
Yes, as long as volume is moderate and form stays clean.
Why do my hip flexors feel tired?
They assist in holding the legs up, which is normal for this exercise.
Summary
Criss-cross legs is a reliable abs exercise that builds lower core strength with minimal complexity. By focusing on straight legs, controlled movement, and proper breathing, you can make this simple move highly effective.
Use the beginner variations if needed, progress gradually, and prioritize form over speed. With consistency, this exercise can become a solid part of your core training routine at home.
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