Relative energy deficiency in sport in male athletes: a commentary on its presentation among. What is known about lea and red-s in some specific populations of male athletes: general male athlete populations, reduced sex hormone testosterone seen in subset of male athletes, particularly in endurance, lean sports or during periods of lea. Red-s in male road cyclists: early studies of the tour de france reported very high daily energy expenditures (mean: 25. 4 mj; maximum: Lower bmd in the lumbar spine is documented in male cyclists compared with other athletes. When taken together, combat athletes appear at risk for lea and resulting red-s including cardiovascular disease, endocrine disruptions, and impaired mental health. Indeed, some jockeys have ridden in more than 1,200 rides in a calendar, with weight making required for each race. Jockeys are required to weigh-in before every race. Notably, weight classifications were established hundreds of years ago.