The 25 Best Exercises to Tone Your Abs (and None of the Moves Are Crunches)
Flutter Kicks With Resistance Band: Sit on a mat or carpeted floor. Loop one handle of the resistance band on either foot. Hold on to the middle of the tube with both hands and lie on your back. Draw your navel toward your spine and press your low spine into the floor to protect your lower back, then lift both legs up so they are almost pointing straight up toward the ceiling.Holding the band securely, scissor your legs up and down one at a time, starting with the left leg.