Two months after a serious accident with his handbike, the condition of former Formula 1 driver Alex Zanardi has improved enough to be allowed to leave intensive care for the second time.

53-year-old Zanardi was admitted to intensive care at San Raffaele Hospital in Milan on July 24, after having been discharged from a hospital in Siena three days earlier.

The four-time Paralympic champion underwent brain surgery for the third time on July 27, from which he has now recovered well. "The patient is showing significant clinical improvements," San Raffaele Hospital said in a statement Wednesday.

Zanardi collided with a truck on June 19 with his handbike. The Italian raced in Formula 1 for five seasons (1991, 1992, 1993, 1994 and 1999). In 2001 he lost his legs in a serious crash in Germany. Since then he has focused on hand biking.