Why does Captain America (MCU) jog?

In Winter Soldier he is running at the start. Does this make him fitter?

Captain America was just working out with Falcon.

I think yes. Have gotten the impression from the MCU that this version of the Super-Soldier Serum only got Rogers to a transformation level but he could still increase his physical abilities like any athlete.

Though to be fair to continuity in the comics he works out all the time as well, whether that be from a combat training scenario to just old fashioned physical training so its not just an MCU aspect though the films do seem to emphasize it more as a way of bringing a bit more reality to that aspect of the character.

Too Evans' credit as well he's clearly more defined in Winter Soldier and Avengers 2 than he was in First Avenger.

He didn't seem to find the run challenging. It seemed to be like if I exercised my lifting a thimble.

Probably just an old habit

Nah, it's more like you taking a gentle jog. That's what's running 11 meters per second is to him.

It seems like a lifestyle to me. His whole attitude is being super dedicated and he's a hard worker. He's a leader and leads by example.

He seemed like he was trying to fit into the new world, maybe he figured jogging would help him fit in since its done by so many Americans.

It makes sense that he could improve his physicals like anyone else could.

I imagine Cap only does this to humble himself, that despite having nigh-superhuman enhancements he's still human, and that he still has limits and is trying to reach them. In "Captain America the Winter Soldier" Cap is running with Sam at the start of the movie which seems like sun is still rising. When their jog ends, it looks like its near 10:00 am. So Steve has been Jogging for a long time along with Sam.

Because even though hes enhanced, he still has to maintain his fitness through physical activity though at a much different level then an ordinary human. Hes like a regular joe, its just that his base point is much higher. Without exercise hes still far stronger and faster then any average person.

Maybe he does a lot of laps to test his stamina and endurance.

A normal person lifting a thimble isn't a really good comparison. As long as he is exerting himself sufficiently (and jogging involves a lot more of your body, so its possible, even for a extremely fit person, to push themselves harder) there are going to be physical benefits. Not only that but there are mental/emotional benefits as well, as well as echoing what other have said as being a part of his attitude, personality and habit to jog.

To irritate me with an irritating joke.

Because he`s Captain America :)

The SSS cant keep up with Modern day American fast food.

@jumpstart55: When was it stated he had to keep on working out ?

Even in the beginning of the Avengers movie he was just hitting the bags to work off steam. He probably just likes working out , helps him release his anger , and he just wants to

@ProphetVivec36: Lol! Nice one.

I think it's all of the above. Built in sense of responsibility to continue his training. To clear his mind. And it would help make sense how it is that every film he's so much stronger.

Does it really have to? I mean its only sensible that he would still need to work out. He still human for the most part, just enhanced. His muscles are still subject to atrophy, and his lungs and heart are still capable of growth and or deterioration. I mean hes not like Thor or Hulk who are portrayed as having limitless stamina and endurance as a result of being absurdly powerful and obviously arent human, and as such dont require physical exercise to maintain their physiques and abilities. I mean he was getting winded in the First Avengers film while fighting alongside Thor. This means he has VO2 max like anybody else, its just takes absurd amounts of physical activity to do so.