(Cover) - EN Star Style - Denise Richards uses Pilates to inspire her to shop in the rain.

The American actress is a big fan of the exercise discipline, which champions the philosophy of mind over matter when it comes to strengthening core muscles.

Denise loves to get up first thing on a Sunday morning and get straight into her strict exercise regime, which she credits with making her more toned and flexible.

Practising the discipline gives Denise so much energy that she cant bear to be indoors, and it inspires her to do chores, even when the weather is bad.

Finished an amazing Pilates workout great way to start my Sunday! trying to motivate the girls to go out in the rain for some xmas shopping! (sic) wrote the star on her Twitter page at the weekend.

The 39-year-old beauty has two children, six-year-old Sam J. and Lola Rose, five, with former husband Charlie Sheen. Despite being a busy working mother, the stunning star always finds time to maintain her athletic figure. (C) Cover Media