To increase the difficulty of this movement, hold your legs in place for several seconds when they are parallel to the ground.
Lower abdomen, from just above your belly button to your pubis. The lower half of the six pack abs.
Outer sides of your abdomen.
Muscles spanning the front of your thigh.
Upper abdomen, from just above your belly button to your sternum. The upper half of the six pack abs.
Bodyweight
This means that the exercise requires you to use your bodyweight as resistance but you also need other equipment to successfully perform the exercise.
Padded Parallel Bars
You can allow your forearms to rest comfortably on the pads, but you should still focus on keeping your torso held firmly upright.
Exercises that target the same primary muscle groups and require the same equipment.
Exercises that target the same primary muscle groups with different equipment