Kinetic conversion

Kinetic conversion is the ability to convert kinetic energy into physical strength. This ability can be used to restore energy simply by moving. A person with this ability has incredible stamina, as they can sustain themselves on only kinetic energy. Also, any non-damaging blows dealt to a person with this ability can even use hits or attacks to gain energy. The person does not absorb damage, they only absorbs kinetic energy, so they can be hurt, they just sustains themselves on kinetic energy.

Characters
Seth Evans has this ability.