ANATOMY OF A POWERHOUSE

NECK: 18in

He said: ‘I can do neck rolls now without putting my hands up. I can balance all my weight on my neck, like they do in wrestling.’ He sometimes wears a neck harness attached to weights.

BICEPS: 19in

Rather than conventional weights, Joshua does more with kettle bells, heavy ropes and medicine balls.

CHEST: 47in

Despite his defined chest, Joshua doesn’t bench press. Favours bodyweight training — push-ups, pull-ups and sit-ups.

WAIST: 36in

Joshua revealed: ‘I do a lot of core and rotational movements to generate power.’

THIGHS: 27in

One of the areas where Joshua does lift weights. There are lots of squats and he uses trap bar deadlifts to work quads and glutes to generate explosive power in punches.

CALF: 17in

Joshua does a lot of work on sand, particularly shadow boxing, with the aim of using the unstable surface to condition his legs and improve balance.