I am just concerned since about seven years ago I had metal rods put in my back for scoliosis. Which leads everyone to believe that I am a weak person. Pretty much I kayak, ride a bike 40 miles at a time and play soccer. I am just worried that the idea of not being able to stick my feet in my mouth physically will cause me to be disqualified. I hear one of the requirements is that you must be able to drag 50lbs 400 yards, I can run with a 150 lb person on my back, so I hope I at least get the chance. I have a friend who was in the Navy that said Merchant Marines will take just about anyone as long as they can walk. I am just looking for confirmation of this as it is one of my last worries about getting a job.