The seated abduction machine lets you load the side glutes without balancing. A controlled range beats a stack you have to heave.

Diagrams show the shape of the movement. Follow the written steps before you add load.
Equipment. Hip abduction machine
Muscles. gluteus medius. Also gluteus minimus, gluteus maximus
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.