Basically, women can do most of the same exercises as men. Sit-ups and planks, for example, are just as suitable for abdominal muscle training for women as they are for men. The same applies to side planks, bicycles and bird-dog crunches. Toe touches, where you lie on your back, stretch your legs vertically upwards and then touch your toes with your fingers, are another option. You adopt a similar basic position for leg lifts. You lie flat on the floor, raise your outstretched legs to 90 degrees and bring them back towards the floor before lifting them again before they reach the ground.