The latest workout craze is super-physical, ultra-exhausting and involves releasing your inner beast ...

Name: Quadrobics.

Age: New and sprightly.

Quadrobics? That’s got to be a workout for your quads – short for quadriceps femoris, the group of muscles at the front of your thighs. Am I right? Actually no, you’re not. Well, it probably helps them, but not exclusively.

Exercise in the courtyard, or a university perhaps? Or on a quad bike? Nice try, wrong again. You are right about quad meaning four, though.