Arnold Schwarzenegger, 73, stays action star fit on bike ride with girlfriend Heather Milligan, 46

Arnold Schwarzenegger, 73, stays action star fit on bike ride with physical therapist girlfriend Heather Milligan, 46

He rose to fame as a bodybuilder and then an action star.

And Arnold Schwarzenegger was glimpsed over the weekend keeping in shape with a bicycle ride in sunny Los Angeles.

The 73-year-old former Governor Of California was joined by his 46-year-old girlfriend Heather Milligan, a blonde physical therapist.

On the move: Arnold Schwarzenegger was glimpsed over the weekend keeping in shape with a bicycle ride in sunny Los Angeles

Arnie bundled up against the autumn chill in an anorak over a blue T-shirt, pulling on a pair of fitted black sweats for his exercise outing.

Meanwhile Heather wore her hair down and zipped herself into a cozy-looking black hoodie that matched her leggings.

Both of them made sure to take the precaution of wearing face masks as they emerged from lockdown amid the ongoing coronavirus pandemic.

Off she goes: The 73-year-old former Governor Of California was joined by his 46-year-old girlfriend Heather Milligan, a blonde physical therapist

Off she goes: The 73-year-old former Governor Of California was joined by his 46-year-old girlfriend Heather Milligan, a blonde physical therapist

He and his estranged wife Maria Shriver share four children together – Katherine, 30, Christina, 29, Patrick, 27, and Christopher, 23.

Maria left Arnold after it emerged that he had fathered a son called Joseph, now 23, by the family’s housekeeper Mildred Baena.

Joseph has followed his father’s footsteps into the bodybuilding profession and recently showed off his sculpted torso on Instagram.

Looking fab: Arnie bundled up against the autumn chill in an anorak over a blue T-shirt, pulling on a pair of fitted black sweats for his exercise outing

Looking fab: Arnie bundled up against the autumn chill in an anorak over a blue T-shirt, pulling on a pair of fitted black sweats for his exercise outing

History: Before his Hollywood days Arnold was himself a champion bodybuilder, earning the nickname the Austrian Oak after his native country

History: Before his Hollywood days Arnold was himself a champion bodybuilder, earning the nickname the Austrian Oak after his native country

Before his Hollywood days Arnold was himself a champion bodybuilder, earning the nickname the Austrian Oak after his native country.

Although Arnold and Maria separated in 2011 and he has been linked to Heather since 2013, the divorce has not been finalized.

He became a grandfather for the first time this summer when Katherine gave birth to her firstborn daughter Lyla by her sizzling husband Chris Pratt.

Meanwhile: Heather wore her hair down and zipped herself into a cozy-looking black hoodie that matched her leggings

Meanwhile: Heather wore her hair down and zipped herself into a cozy-looking black hoodie that matched her leggings