wingspan to height ratio average
Those affected by Marfan syndrome are often unusually tall, with long, slender limbs. As such, doctors regularly look at the ratio of a person's wingspan -- the length of the outstretched arms from fingertip to fingertip -- to their height when making a diagnosis. A ratio larger than 1.05 is indicative of Marfan. According to an analysis completed by Sports Illustrated in 2012, the average NBA player has a wingspan-to-height ration of 1.063. While most of them probably don't have Marfan syndrome, there's little doubt that they are absurdly long and lanky.