Fitness rules to break

Some age-old fitness routines aren't as effective anymore.

If you want a better behind you can't just do squats all day and think you're going to get it. Instead of squats, make sure your hands are right under your shoulders and the best thing to do is to make sure your head is in alignment with your back, so you're looking down on the floor. And you just raise your leg and you lift and just press your heel and foot up to the ceiling. Make sure when you're doing this you're not arching up.

For a flatter tummy, say goodbye to crunches. Instead lay flat on the floor, raise your legs up and bring your knees in, have your hands out and you come out to a 'v' position and hold it for a second and then you roll back down.

Repetition isn't always good either. When you pump iron, going up and down over and over again isn't the best way to tone your muscles. Instead, pause halfway up or halfway down.

Don't step on the scale everyday. Weighing yourself after each workout is not an accurate indicator of how much weight you've lost.

To get the most out of your workout experts suggest you switch up your routine every three to six weeks.