Hip osteoarthritis (OA) can cause pain in the hips, back & knees, and it can pain when walking. These are moderate hip osteoarthritis exercises, so if they are too difficult, check out my beginner hip osteoarthritis exercises.
The first exercise is a clamshell exercise. This works the gluteus medius and rotator muscles.
Next are 4-way hip exercises lying down. This is hip flexion, hip abduction, hip adduction, and hip extension. They are a great way to work all the muscles around the hip to help with stability and strength.