Watch: Is this the dizziest ever world record?

Is this the dizziest ever world record?

Dr Ariel Dempsey spent four hours spinning in her cyr wheel at Oxford's Old Fire Station.

The current record is one hour and three seconds - set by Australian circus artist Sophie Bohlsen in Melbourne, Australia.

Dempsey said: "What inspired me to do it was my grandfather. I feel like he'll be up in heaven smiling down on me."

She said she is now hoping her time will be confirmed as a new Guinness World Record.

Video journalist: Chris Wood