Doctors feared the Briton, 23, might be paralysed after she fractured her spine in a horror crash last October.
Denny Hamlin sustained a compression fracture in his lower spine in a last-lap crash while racing for the win against Joey Logano on Sunday, and his team gave no indication how long he could be sidelined.
"We know full well what could happen, but we don't really seem to care," said Paul Thacker, 35, a three-time X Games competitor whose spine was badly injured in a crash in 2010.
Shone, a former heptathlete, fractured her spine in two places in a crash during a training run for the British Championships in October 2011.
Briggs, whose wife, Lindsey, has asked the court to stop his treatment, sustained a brain haemorrhage, five fractures in his spine, bruising to internal organs and several other severe injuries in a crash in July last year.
The Scot, 40, suffered two broken vertebrae in his spine and also broke his right ankle and cracked two ribs in a crash at the Houston Grand Prix.
Open image in new window Fig. 14 Charcot spine in a 32-year-old female with SCI due to a motor vehicle crash 2 years prior.
What would happen in a crash, though?
Volvos are safe in a crash.
Destroyed in a crash in 1942.
