Which athletes have the best cardio?

Which athletes have the best cardio? According to data presented in “Essentials of Strength Training and Conditioning,” cross-country skiing is the most aerobically challenging sport and places the highest demand on the cardiovascular system. Elite cross-country skiers tend to have VO2 Max estimates upward of 70, higher than any other major sport.

According to data presented in “Essentials of Strength Training and Conditioning,” cross-country skiing is the most aerobically challenging sport and places the highest demand on the cardiovascular system. Elite cross-country skiers tend to have VO2 Max estimates upward of 70, higher than any other major sport.