Quick physical test:
1) First simulation was climbing up and down a ladder off the ground to a platform and vice versa which duplicates a train climb
2) Second simulation was pulling a weight pulley (cant remember how heavy it was but nothing to worry about) towards you with both hands to simulate being able to opening car doors
3) Third simulation was walking over a mat which had rocks underneath with beams to duplicate walking over a track/uneven surface. Also have you step over a obstacle to show you can step over the third rail.
Vision test, urine test, hearing test, blood pressure....thats all there is to it. Dont think im forgetting anything.