Actress Jennifer Love Hewitt straps small five pound (2.27 kilogram) weights to her ankles while filming her sexy U.S. Tv drama The Client List so she can tone her legs while she shoots.

The brunette beauty, who plays a single mother working as a high-class prostitute on the series, reveals she's found a clever way to work out on set because the cameras rarely pan to her feet - and her unusual methods are paying off.

She tells Shape magazine, "Since I'm often shot from the waist up, I wear them in almost every scene. It's just a way to give myself a little extra challenge while doing normal stuff. It's a subtle difference, but I've noticed a change in my body. My legs and butt are stronger and tighter."