Exercises from the community
Hip Raises (abs)
Hip Raises use the weight of your legs as resistance to boost lower abdominal muscle growth, with a straighter leg position than the bent-leg variation for a longer lever arm. Lie on your back with your legs extended straight up toward the ceiling. Contract your lower abs to lift your hips a few inches off the floor, then lower back down slowly without letting your legs drop or swing.
Medicine Ball Straight Leg Raises
Medicine Ball Straight Leg Raises add resistance to a classic lower-ab movement, using the weight of the ball to make bigger gains than the bodyweight-only version. Lie on your back holding a medicine ball between your feet or ankles, legs extended toward the ceiling. Lower your legs slowly toward the floor without letting your lower back arch, then raise them back up using your lower abs.
Crunches: Legs Straight (abs)
Crunches: Legs Straight removes the usual knee bend, giving your abs a different challenge and variety that leads to faster results. Lie on your back with your legs extended straight up or along the floor rather than bent. Curl your shoulders and upper back off the floor, focusing the effort in your abs rather than pulling with your neck, then lower back down with control.