TY - JOUR T1 - Authors’ 2015 additions to the IOC consensus statement: Relative Energy Deficiency in Sport (RED-S) JF - British Journal of Sports Medicine JO - Br J Sports Med SP - 417 LP - 420 DO - 10.1136/bjsports-2014-094371 VL - 49 IS - 7 AU - Margo Mountjoy AU - Jorunn Sundgot-Borgen AU - Louise Burke AU - Susan Carter AU - Naama Constantini AU - Constance Lebrun AU - Nanna Meyer AU - Roberta Sherman AU - Kathrin Steffen AU - Richard Budgett AU - Arne Ljungqvist Y1 - 2015/04/01 UR - http://bjsm.bmj.com/content/49/7/417.abstract N2 - In April 2014, the International Olympic Committee (IOC) published a Consensus Statement in this journal entitled “Beyond the Female Athlete Triad: Relative Energy Deficiency in Sport (RED-S)”.1 In reference to that Consensus Statement, Professor Mary Jane De Souza and colleagues published an editorial (July 2014).2 The editorial below expands on the original Consensus Statement and comments on the 2014 Editorial by Professor Mary Jane De Souza and colleagues. Albert Einstein said: “The important thing is to never stop questioning.” A group of 11 IOC authors have called attention, as others in the past,3 ,4 to a problem that is wider and more complex than originally identified when the term ‘Female Athlete Triad’ (Triad or FAT) was first coined in 1992. Just as knowledge evolves, so too should ideas and constructs on how to address it. Given the evolution of science since 1992, and to more accurately describe the clinical syndrome originally known as the Female Athlete Triad, the IOC introduced a more comprehensive, broader term: Relative Energy Deficiency in Sport. The syndrome of RED-S refers to impaired physiological functioning caused by relative energy deficiency, and includes but is not limited to impairments of metabolic rate, menstrual function, bone health, immunity, protein synthesis, and cardiovascular health. Our April 2014 Consensus statement identifies the aetiological factor underpinning the syndrome as: an energy deficiency relative to the balance between dietary energy intake and the energy expenditure required to support homeostasis, health and the activities of daily living, growth and sporting activities. We reaffirm the principle that the IOC Consensus Statement highlights about energy deficiency/low energy availability among exercising people. De Souza and colleagues’ editorial criticises the use of the word ‘balance,’ suggesting that the IOC authors have confused the terms energy availability and energy balance. We used the term … ER -