Jockey Julia Brimo remained in critical condition on Saturday afternoon in a Lexington, Ky., hospital, according to racing officials, one day after a spill at Keeneland Racecourse in which the rider's mount clipped heels, threw her, and appeared to roll over her.\nUniversity of Kentucky Hospital would not release further details about the 33-year-old rider, who won the 2003 Sovereign Award for top apprentice rider in Canada. On Friday, trainer Mark Casse said that Brimo suffered head and back injuries and had been put into an induced coma to stop recurring seizures related to the injury. Casse, whose ex-wife was with Brimo on Friday at the hospital, said that the rider had movement in her legs prior to being put in the coma.\nBrimo was injured after her mount, Golden Stride, clipped heels during Friday's first race, for $30,000 maiden claimers. After she was thrown from the horse, Golden Stride appeared to roll over the fallen rider. Golden Stride recovered from the fall and was eventually collared by an outrider.\nThough she won 75 races in her apprentice year, Brimo has ridden sporadically over the past several years. Prior to Friday she had ridden in 10 races this year, with one win.