London, Nov 16 (IANS): Actress Catherine Zeta-Jones says she doesn't need a personal trainer as she stays slim by hula-hooping and swimming every day.

The 43-year-old claims she doesn't need any professional help to get motivated in the gym because she loves exercising and does it for at least 45 minutes every single day, reports contactmusic.com.

"I don't have a trainer. Crazy, right? But I don't need anyone to motivate me. I love exercise, even things like the elliptical and stretching," She told the InStyle magazine.

"I'm obsessed with hula-hooping. I do it for 20 minutes a day. I don't use the old-fashioned hollow plastic kind we had when we were kids, but I discovered a new one at Danskin that's smaller and weighted.

"I'm lucky to have a pool at my house in Westchester. I do laps for half hour a day where I can. I either work out in the house or, when I'm at our apartment in Manhattan, at an Equinox. I do at least 45 minutes a day, seven days a week," she added.