If it is a sudden melee at close range, people who practice push-ups have a good chance of winning. If you can hit the other side with heavy punches in a row, it is difficult for the other side to resist and there is no strength to fight back.

If it is a protracted war, then runners can use their endurance to gain some advantages.

If you fight with a sword, it is very dangerous to practice running or push-ups. I hope this terrible thing won't happen.

Of course, it depends on many factors such as offensive desire, physical gap between the two sides and so on.

It is best to avoid confrontation when going to war.