If you have the strength and flexibility, you can squat down farther and stop when your thigh is parallel to the ground.
Muscles of your butt.
Muscles spanning the front of your thigh.
Muscles spanning the back of your thigh.
Lower abdomen, from just above your belly button to your pubis. The lower half of the six pack abs.
Center region of your back, spanning from the pelvis to just below the neck. However, parts of it are hidden beneath other muscles. The lower portion is the most visible.
Outer sides of your abdomen.
Upper abdomen, from just above your belly button to your sternum. The upper half of the six pack abs.
Bodyweight Only
This means that the only thing you need to successfully perform the exercise is your body. No other equipment is needed.
Exercises that target the same primary muscle groups and require the same equipment.
Exercises that target the same primary muscle groups with different equipment