Video: What the f**k is this guy doing in the gym?

We'd be surprised if this gym goer over in the US didn't pull a neck muscle while doing what can only be described as the strangest sit-ups we've ever seen.

Maybe this lad got caught out sitting behind a tall guy in the cinema one too many times, or he could be just trying to strengthen his neck for sporting reasons, but we’re pretty sure he’s not doing anything other than giving himself whiplash.

If fairness to the lad he’s going hell for leather at whatever it is he’s doing and doesn’t let up much during the 20 second video. Still, it just looks wrong.