Two long-distance running events in Tempe, Ariz., have been a boon for Massage Envy. A number of people with sore legs stopped by seeking relief after finishing their run. Others sought massages before the race to limber themselves up. "It’s going to help get those toxins out," said Cary Underwood, manager of Massage Envy. "You really push your body when you’re doing a marathon. We really want to flush those acids out ..."