The 90/90 position trains internal and external hip rotation with both legs bent. It is quiet work that helps squat depth and single-leg balance feel less sticky.

Diagrams show the shape of the movement. Follow the written steps before you add load.
Equipment. Bodyweight, Mat
Muscles. gluteus medius. Also gluteus maximus, adductors
All Cheeked Up publishes general fitness education. It is not medical advice, physical therapy, or a promise that your body will change. Stop any exercise that causes pain and talk with a qualified professional about injuries, pregnancy, or health conditions before you train.