I've been seeing a trend in my practice. Many returning clients love Ashi because of sciatica and/or piriformis pain relief. Athletes especially request work on this area, as it relieves discomfort and improves athletic performance.
The piriformis is an external rotator of the hip that attaches to the sacrum and inserts onto the greater trochanter.
Sciatica refers to pain that radiates along the path of the sciatic nerve, which branches from the lower back through the hips and buttocks and down each leg.