Gluteus Maximus
The largest of the three muscles and is responsible for most of the butt’s shape, balance, posture, stabilizing and moving your hip joints. This muscle is attached at your tailbone, right at the bottom of your spine, to the top of your hip down into your femur or as you may know it, your thigh bone. This is a hugely important muscle required for everyday use and can cause issues with posture, pain in your hips, knees and back if it has been affected by imbalance, weakness, or injury. The glutes control the hip joint and thigh which is needed to maintain balance while running, walking, jumping, and squatting.