The UK’s toughest workouts

20 April 2017 by
First published: 14 March 2017
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The UK’s toughest workouts

Flatline, Gymbox

Described by Gymbox as the ‘hardest and most dangerous gym class in the world’, it’s no surprise that you have to sign a death waiver to take part in Flatline. But don’t let that scare you off – there are paramedics and cardiologists on site at all times. Flatline aims to test all elements of strength and stamina. Participants wear a 12kg weighted vest as they work their way through tasks such as weighted rope climbs, atlas stone throws and box jump burpees, made increasingly difficult over a 45-minute period. With a compulsory oxygen station installed as part of the cool down, this is certainly for the more sadistic of you.

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