Exercise
ALTERNATING FLOOR LEG RAISE
Stand
Squat
Form cues
Keep your lower back pressed flat against the floor throughout each raise
The lower you keep the raised leg on the way down, the harder the abs work
Raise one leg to 90 degrees while keeping the other straight and hovering just above the floor
Lower with the same control you used to raise — do not drop the leg
Keep your hands flat on the floor at your sides for stability
If your lower back arches, raise the resting leg slightly higher until your core strengthens
Instructions
Step-by-step technique
Lie flat on your back with both legs extended and arms at your sides, palms facing down.
Press your lower back into the floor. Slowly raise your right leg to a 90-degree angle, keeping the leg straight.
Lower the right leg back to the floor with control, then immediately raise the left leg.
Continue alternating sides for the desired reps. Keep both legs as low as possible when not being raised while maintaining a flat lower back.
This exercise trains the hip flexors and lower abdominals, and is a strong foundational core exercise for beginners building toward more demanding leg raise variations.