Leg lifts work the lower abs, but they also work the inner thighs (which in Pilates, are considered part of the core). ... Besides working the lower abs and inner thighs, leg lifts also help with hip strength and flexibility due to the motion of your legs and hips during the move.

Are leg lifts effective?

You don't need anything to do leg lifts, other than a comfortable place to lie down, but they're effective in building muscle on the front of your body. Leg raises benefits include strengthening your core muscles, which can help prevent low back pain, according to Mayo Clinic.

How long does it take to see results from leg lifts?

You can see small results in even two to four weeks, after you begin a leg workout. You will have better stamina, and your legs will look a little more defined. But all in all, depending on your fitness levels, it does take three to four months for any remarkable difference.