The traits that set one up for success in the show are not necessarily the ones most valuable on a football field. The show features a wide variety of obstacles that change week-to-week, round-to-round, and season-to-season.
The most common obstacles involve jumping and balancing on small platforms, climbing without support across complicated terrains, and sprinting across platforms designed to knock off balance.
The best contestants are excellent all-around athletes, but some of the most beneficial athletic traits are grip strength, upper body strength, long reach, balance, and jumping ability.
Competitors are a wide range of sizes.