Exercise guide
Lying Alternate Toe Touch Floor
- Beginner
- Compound
- Rep-based
- Lower legs
- Upper legs
- Waist
This dynamic core exercise isolates the abdominals and obliques through a cross-body crunch, improving rotational strength and coordination. It effectively engages the hip flexors and quadriceps to stabilize and lift the legs against gravity.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie flat on your back on a mat with your legs fully extended and arms stretched overhead on the floor.
- Engage your core by pressing your lower back firmly into the mat to eliminate any arch.
- Position your feet hip-width apart and your hands shoulder-width apart as the starting position.
How to do it
- Exhale as you simultaneously lift your right leg and left arm toward the ceiling, crunching your torso upward to touch your hand to your toes.
- Focus on lifting your left shoulder blade completely off the floor to reach across your body.
- Inhale as you lower your arm and leg back to the starting position with a controlled, two-second tempo.
- Repeat the movement using the opposite arm and leg, alternating sides for each repetition.
Form checklist
- Keep your legs as straight as possible by engaging your quadriceps throughout the lift.
- Ensure your lower back remains in contact with the floor as you lower your limbs to protect the spine.
- Lead the movement with your chest and shoulder rather than tucking your chin or pulling on your neck.
- Maintain a steady, rhythmic pace without using momentum to swing your limbs upward.
Pro tips
- Pause for a split second at the peak of the movement to maximize the contraction in your obliques.
- Think about 'peeling' your spine off the floor one vertebra at a time to ensure the abs are doing the work rather than just the hip flexors.
- Focus on bringing your ribcage toward your opposite hip to deepen the rotational engagement.
Make it harder
- Keep both legs and arms hovering 2-3 inches off the floor between repetitions to maintain constant tension on the core.
- Slow down the eccentric lowering phase to 4 seconds to increase the time under tension for the rectus abdominis.
Frequently asked
- What muscles does the lying alternate toe touch floor work?
- The lying alternate toe touch floor primarily targets the abs and obliques, and also works the erector spinae and glutes as secondary muscles.
- What equipment do you need for the lying alternate toe touch floor?
- The lying alternate toe touch floor requires no equipment — just your body weight.
- Is the lying alternate toe touch floor good for beginners?
- Yes. The lying alternate toe touch floor is a beginner-friendly movement and a strong foundation to build on.