Serve in the Foreign Legion requires good physical condition.
On the day of your arrival at the Foreign Legion information post, you must be medically fit to perform the physical fitness tests.
EXAMPLE: Body Mass Index of a man measuring 1.75 m and weighing 72 kg
BMI = 72kg / (1.75m * 1.75m) = 23.5 kg / m²
Not all are considered world champions and the tests are not selective, but a minimum of preparation gives the candidate's level of motivation.