“The result of all this muscular effort, on both the larger scale and the smaller, is that your body burns calories and consumes oxygen at a rate that is unmatched in almost any other human endeavor. Physiologists, in fact, have calculated that rowing a two-thousand-meter race—the Olympic standard—takes the same physiological toll as playing two basketball games back-to-back. And it exacts that toll in about six minutes.”

The Boys in the Boat by Daniel James Brown