Exercise parts: hamstrings, gluteus maximus, etc.
Romanian deadlift action description:
The feet are the same width as the hip, the hand barbell is located at the hip height, the grip is the same width as the shoulder, the shoulder is retracted, and the knee is slightly flexed.
Then sit back with your hips, let the fitness equipment barbell slowly lower down close to your body, the barbell falls below the knee and starts to pull up, the barbell does not touch the ground during the whole movement.