Assume the superhuman has no powers besides super strength, speed, durability and coordination.
What would be the optimal way for them to fly without any assistance?(no gadgets, suits and additional equipment besides their body).
I have thought about running on air like how speedsters and real life animals can step on water and run on it given high enough speed. But then I realized stepping on air would mean that you would be pushing against air with your feet and body at the same time so you wouldn't go anywhere.
The only option would be to swim in air which is different cause although you are pushing against water in front of you, you can still swim in water.
My question is would swimming in air work? Because I know air is different from water and is compressible.
If it works which swimming style would be best for swimming in air? I think its freestyle but only because its fastest in water.