Track rider Kate Nipperess has experienced some feeling in her legs a week after suffering spinal injuries in an accident at Warwick Farm.

Racing NSW safety officer Maurice Logue said Nipperess was feeling much better and felt what she described as electronic zaps in her lower legs which doctors said was her nerves starting to wake up.

Nipperess suffered multiple injuries in a fall at Warwick Farm when the horse she was riding was hit head-on by a riderless horse.

On the day of the accident, surgeons operated on a displaced vertebra which relieved pressure on her spine.

Doctors also discovered on Thursday she had a fracture in her right shoulder in addition to her other injuries but she was in good spirits.