Exercise guide
Lying Leg Raise Modified
- Beginner
- Compound
- Rep-based
- Waist
This beginner-friendly core exercise targets the lower abdominals and hip flexors while minimizing lower back strain by working one leg at a time. It builds foundational core stability and hip control through a controlled, alternating range of motion.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie flat on your back on a mat with your legs extended straight and arms by your sides.
- Press your lower back firmly into the floor to engage your core and eliminate any arching.
- Place your hands palms-down under your glutes for additional lower back support if needed.
How to do it
- Exhale as you lift one leg toward the ceiling, keeping it straight, until it is roughly perpendicular to the floor.
- Inhale as you slowly lower the leg back down to the starting position, stopping just before it touches the ground.
- Repeat the movement with the opposite leg, alternating sides for each repetition.
- Maintain a controlled tempo, taking approximately 2 seconds to lift and 2 seconds to lower.
Form checklist
- Keep the lower back glued to the floor throughout the entire movement.
- Ensure the non-working leg remains stationary and pressed into the mat.
- Avoid using momentum; move the leg with control from the hip.
- Keep your neck relaxed and gaze toward the ceiling to avoid strain.
Pro tips
- Focus on 'pulling' your belly button toward your spine to maximize deep transverse abdominis engagement.
- At the top of the movement, give your quad a quick squeeze to ensure full leg extension and hip flexor activation.
Make it harder
- Keep both feet hovering 2-3 inches off the ground throughout the entire set instead of resting the non-working leg.
- Slow down the lowering phase to 4 seconds to increase time under tension for the lower abs.
Frequently asked
- What muscles does the lying leg raise modified work?
- The lying leg raise modified primarily targets the abs, and also works the obliques as secondary muscles.
- What equipment do you need for the lying leg raise modified?
- The lying leg raise modified requires no equipment — just your body weight.
- Is the lying leg raise modified good for beginners?
- Yes. The lying leg raise modified is a beginner-friendly movement and a strong foundation to build on.