The singer does weights and works on her cardio to stay in shape

Pop star Britney Spears uses ‘old-school’ cardio and weights routines to get fit, says her personal trainer Tony Martinez. Martinez has revealed the star does weights and works on her cardio to get into shape and he always makes sure she is having fun with the routines.

“She was used to weights and running or cardio. She is old-school and would do cardio for an hour. So I said, let’s do something different for 20 or 30 minutes instead. And she was huffing and puffing and she is just having fun,” quoted Martinez as saying.

Spears isn’t aiming for a particular size or weight, she just wants to be healthy.

“One of the things about her that stands out is she doesn’t have it in her head that she wants to be thin,” said Martinez.