Bit of context here – I own a window cleaning business and want to take on my first employee very soon. It is a very physically demanding job, and I want to make sure not only that they are a good fit, but also they have the muscular endurance to do a days work. Could I ask them during the interview to do their max reps of 10kg military press? I can’t seem to find anything online about the legality of this, or whether it is even a done thing. But it seems necessary as someone who underestimates the physicality of this job may struggle and quit. I am in the UK, thanks.