The UK health industry has this year grown to a massive £3.9 billion, helped in large part by newfangled workouts that promise life-changing results, sharpish.
But are these faddy fitness regimes really worth your hard-earned dosh? We sent our FHM guinea pig along to some of the most popular classes to find out, strapping a GoPro camera to his head to capture all his sweaty, smelly findings.
Pick up the new issue of FHM – out now! – to learn all about these trendy fitness crazes and answer the biggest question of them all: Fad or Rad?
Words and exercising by Dan Masoliver. Follow the man on Twitter here.