I have a pair. You do move faster, jump higher, etc-- but that energy doesn't come out of nowhere. You're adding big weights to the ends of your legs and runnin

I have a pair. You do move faster, jump higher, etc-- but that energy doesn't come out of nowhere. You're adding big weights to the ends of your legs and running, jumping, etc. It's definitely sports equipment, and it's a heck of a workout. It also works a lot of muscles that aren't especially large on the average human, particularly the anterior tibialis on the front of your shin, in order to control your movements. Overall I can't really imagine it being good for the endurance-style activities for which humans are already quite well designed. In Afghanistan, at least for combat patrols, you might also have the problem of being taller (ie, a better target) and not being able to quickly take a knee, stumble, or go prone and get back up (ie, much much better target).