There's the androgens, sure. But these monster deadlifters are going to be naturally masculine with huge bone structures and are naturally husky. For men it's said steroids can add up to 30% to your maxes in PL but it might be quite a bit more for women, I don't know. The 30% for men is based on lifters with a lifetime of practise who have stalled and then start roiding... 10-30% increase.