Pilates

Pilates Criss-Cross

Pilates Criss-Cross is a lying abdominal exercise that pairs upper-body rotation with alternating leg extensions. It trains your abs and obliques to control your trunk while your legs move.

  • Intermediate
  • Compound
  • Low injury risk
  • Rest 45 sec
Video by SCC Fitness Center on YouTube

How to do it

  1. Lie on your back with your knees above your hips, bent 90 degrees, and your shins parallel to the floor.
  2. Place your fingertips behind your head.
  3. Curl your upper back off the mat.
  4. Rotate your right shoulder toward your left knee with your right leg reaching straight out.
  5. Rotate your torso back through the center.
  6. Rotate your left shoulder toward your right knee with your left leg reaching straight out.
  7. Draw both knees back above your hips to finish the alternating pair.
  8. Lower your upper body to the mat after your final repetition.

Form cues

  • Keep your pelvis quiet.
  • Exhale with each rotation.
  • Keep your elbows wide.

Common mistakes

  • Pulling on your neckLet your hands lightly cradle your head rather than tugging it forward.
  • Arching your lower backReach the extended leg higher until you can maintain a steady lower-back position.
  • Reaching with only the elbowTurn your rib cage rather than forcing elbow-to-knee contact.

Safety

Forceful twisting or losing trunk control as you fatigue can strain your neck or irritate your lower back.

  • Use a small rotation range for your first few repetitions.
  • Move slowly enough to pause at either side without wobbling.
  • End the set if discomfort develops or you can no longer control the movement.

If you have ongoing neck or back pain, use a smaller range or ask a physiotherapist whether this exercise suits you.

Muscles worked

Front

Primary muscles

  • Abs

Secondary muscles

  • Hip Flexors
  • Obliques

Equipment

  • Exercise Mat

Sets and reps

Sets
2–3
Target
10–16 reps
Rest
45 sec

Count each rotation to one side as one rep, alternating evenly between sides.