it has continued to this day, off & on of course. compare it to the relatively few high level basketball players this state produces - despite the screams of the Oscar Combs of this Commonwealth that we are a basketball state & that football is a bothersome distraction.
My Dad has a theory on this transformation, he thinks Pitino is to thank (or blame, depending on your perspective). When Pitino was at UK he shunned local talent to recruit Northeast & Chicago. the best athletes in the state gravitated to football since the love & dream of playing bball for the big blue was not going to happen anymore.
Of course the 90's were a time when college football overall truly began a dramatic rise in popularity, no doubt that contributed to kids wanting to play that sport over bball as well (despite UK not being very relevant or winning during the period - thanks again, CM!). SEC championship games, tons of games on ESPN all day & night Saturdays, weeknight football, the BCS (yeah, it was good for the sport, anyone who says otherwise is a moron), exciting wide open offenses replacing boring ass wishbone/option/pro styles.