It has to be the decathlon! They have to use every bit of there bodies to accomplish there discipline. They are fit cardio, muscular, and stretching the human body to the end degree. They are all around athletes.
Swimming, probably, as it corrects incorrect posture and harmoniously develops all the muscles in the body. If you mean physical endurance then boxing or football.
Hi.
There are many options. In general, in fact, any sport gives the athlete the opportunity to get the best physical training. Everything depends on the athlete's desire, perseverance, and goal.
Good luck.