Height – your height without shoes.
Ankle – the circumference of your ankle at the smallest point between the calf muscle and the ankle.
Wrist – the circumference around your wrist just below the styloid process, on the hand side. (The styloid process is the bony lump on the outside of your wrist.) The hand should be open.
Bodyfat – the bodyfat percentage that you want to calculate your maximum bodyweight at.