[joelrunyon]

If you've flown anything like the flyboard - it's quite a bit like snowboarding where the balance required from your feet quickly wears out your leg muscles.

Controlling power from your backpack doesn't wear the body down nearly as much.

[1] Flyboard - https://www.youtube.com/watch?v=m4Bm3cs9TFo

[ralfd]

Even better: Flyboard Air

https://www.youtube.com/watch?v=deyMNPbaRpA

It looks insane. Though more Green Goblin than Iron Man.

[greenhatman]

That really does look insane. I wonder if this type of thing would be practical in the military. I guess it would probably make soldiers too vulnerable for the most part.

[Neliquat]

But perfect for a 'One man army' movie. Or recruiting film. Cough cough.

[lloeki]

Here's a random thought regarding an active exoskeleton, could help with both leg strain and limb control: https://news.ycombinator.com/item?id=14218746