pan out post mission.

Your selection criteria bias the result and do not allow any conclusion other than the one you have stated.

The data cannot begin to support your claim because you does not address those who did not pan out but were similarly rated premission.

You also appear to assume (by not addressing it at all) that ALL missions, regardless of destination or legth of time served (since some come home early) have an identical effect on the athlete, without regard to differences in quality of diet, illness, access to fitness equipment, and companions who care to workout.

So forgive us for not taking your conclusions seriously since your analysis really doesn't support anything except that a very FEW top notch athletes did not appear to suffer from "mission legs"