A marathon runner is usually skinnier and thus has less surface area than a lineman. The reason the lineman is better at floating is because they displace more water. So when water is displaced, the water pushes against you with equal force what you have displaced and which is why boats float but rocks do not, boats displace more water compared to their surface area. And in this case the boat is the linemen while the rock is the marathon runner who has less surface area per weight ratio
Aerobic activities are any activities that exhilarate heart
rate and breathing to expand just enough to assist the movement for more than few more minutes. Aerobic involve with oxygen while anaerobic do not involve
with oxygen. Anaerobic is a kind of activities where a person will get out of
breath in just a few minutes (Weil, 2017).
Weil, R., (2017). Aerobic
exercise. Medicine.Net. http://www.medicinenet.com/aerobic_exercise/page3.htm
