Mapping the complexities of Relative Energy Deficiency in Sport (REDs): development of a physiological model by a subgroup of the International Olympic Committee (IOC) Consensus on REDs.

The 2023 International Olympic Committee (IOC) consensus statement on Relative Energy Deficiency in Sport (REDs) notes that exposure to low energy availability (LEA) exists on a continuum between adaptable and problematic LEA, with a range of potential effects on both health and performance. However, there is variability in the outcomes of LEA exposure between and among individuals as well as the specific manifestations of REDs. We outline a framework for a 'systems biology' examination of the effect of LEA on individual body systems, with the eventual goal of creating an integrated map of body system interactions. We provide a template that systematically identifies characteristics of LEA exposure (eg, magnitude, duration, origin) and a variety of moderating factors (eg, medical history, diet and training characteristics) that could exacerbate or attenuate the type and severity of impairments to health and performance faced by an individual athlete. The REDs Physiological Model may assist the diagnosis of underlying causes of problems associated with LEA, with a personalised and nuanced treatment plan promoting compliance and treatment efficacy. It could also be used in the strategic prevention of REDs by drawing attention to scenarios of LEA in which impairments of health and performance are most likely, based on knowledge of the characteristics of the LEA exposure or moderating factors that may increase the risk of harmful outcomes. We challenge researchers and practitioners to create a unifying and dynamic physiological model for each body system that can be continuously updated and mapped as knowledge is gained.

Methodology for studying Relative Energy Deficiency in Sport (REDs): a narrative review by a subgroup of the International Olympic Committee (IOC) consensus on REDs.

In the past decade, the study of relationships among nutrition, exercise and the effects on health and athletic performance, has substantially increased. The 2014 introduction of Relative Energy Deficiency in Sport (REDs) prompted sports scientists and clinicians to investigate these relationships in more populations and with more outcomes than had been previously pursued in mostly white, adolescent or young adult, female athletes. Much of the existing physiology and concepts, however, are either based on or extrapolated from limited studies, and the comparison of studies is hindered by the lack of standardised protocols. In this review, we have evaluated and outlined current best practice methodologies to study REDs in an attempt to guide future research.This includes an agreement on the definition of key terms, a summary of study designs with appropriate applications, descriptions of best practices for blood collection and assessment and a description of methods used to assess specific REDs sequelae, stratified as either Preferred, Used and Recommended or Potential Researchers can use the compiled information herein when planning studies to more consistently select the proper tools to investigate their domain of interest. Thus, the goal of this review is to standardise REDs research methods to strengthen future studies and improve REDs prevention, diagnosis and care.

Awareness and Knowledge of Medical Issues Related to Female Athletes Among Track and Field Coaches.

Introduction: Little is known regarding medical knowledge pertaining to female athletes among track and field coaches and their interactions with female athletes regarding medical problems. Methods: Participants were track and field coaches (369 males and 43 females) with Japan Sport Association certification and they completed an anonymous survey on their knowledge of medical problems pertinent to female athletes including whether the coaches knew about the female athlete triad and relative energy deficiency in sports; their feelings about female athletes' use of contraceptive pills; whether they speak about menses with the female athletes; and whether they have a gynecologist for consultation regarding their medical problems. Results: Females coaches were significantly more likely to be aware of the triad (odds ratio (OR), 3.44; p = 0.003); to have access to a physician able to address the gynecological problems of female athletes (OR, 9.22; p < 0.001); and to talk to their female athletes about menses (OR, 2.30; p = 0.015) than their male counterparts. Coaches with more experience tended to be aware of the triad and relative energy deficiency in sports compared with those with ≤5 years of experience. Conclusion: Females coaches are aware of the triad, talk about menses with their female athletes, and have access to a physician who can address gynecological problems with compared to male counterparts. Educating all coaches on these problems is essential to provide adequate support to female athletes.

Identifying latent classes of Relative Energy Deficiency in Sport (RED-S) consequences in a sample of collegiate female cross country runners.

OBJECTIVE: The purpose of this study was to identify patterns of clustering of the 10 health consequences identified in the Relative Energy Deficiency in Sport (RED-S) framework among collegiate female Cross-Country runners. We also assessed risk characteristics associated with each cluster. METHODS: This randomly sampled population included 211 current National Collegiate Athletics Association (NCAA) Division I (DI) female cross country runners who completed a quantitative survey. We used latent class analysis (LCA) to group athletes into mutually exclusive classes based on shared response patterns of RED-S consequences. We computed descriptive statistics to identify demographics, personal characteristics, disordered eating and emotional health characteristics associated with each class. RESULTS: The average age of the sample was 21 years with mean body mass index 20.4 kg/m2. The LCA identified three unique classes of potential RED-S presentations: (1) low probability of RED-S consequences; (2) complex physical and psychological concerns with a higher burden of cardiovascular concern and (3) very high probability of anxiety with high burden of menstrual disturbance, bone injury and gastrointestinal concern. All classes were characterised by high levels of menstrual disturbance and distinguished by the number and burden of other potential RED-S consequences and in reported abuse history, emotional regulation and perfectionism. CONCLUSION: This study identified a high burden of menstrual disturbance in NCAA D1 cross country runners, and three unique presentations of RED-S consequences. Future research is warranted to better understand how early prevention and intervention strategies may mitigate RED-S consequences in distance runners.

The Influence of Low Energy Availability on Bone Mineral Density and Trabecular Bone Microarchitecture of Pubescent Female Athletes: A Preliminary Study.

The influence of low energy availability (LEA) on bone mineral density (BMD) and trabecular bone microarchitecture in pubescent female athletes is unclear. This study aimed to investigate the influence of LEA on BMD and trabecular bone microarchitecture in 21 pubescent female athletes (age, 12−15 years; 11 track and field athletes, 10 gymnasts). We used two indices to assess LEA: energy availability and the percent of ideal body weight. Dual-energy X-ray absorptiometry was used to obtain total body less head, lumbar spine BMD Z-scores, and lumbar trabecular bone scores (TBS). Pearson's or Spearman's correlation coefficients were used to assess the relationship among EA, percent of ideal body weight, and bone parameters. The threshold for statistical significance was set at p < 0.05. The percent of ideal body weight was significantly correlated with the BMD Z-scores of the total body less head (r = 0.61; p < 0.01), lumbar spine (r = 0.55; p < 0.01), and lumbar TBS (r = 0.47; p = 0.03). However, energy availability was not correlated with bone parameters. These findings suggest that screening for low ideal body weight may be a useful predictor of low BMD and insufficient trabecular bone microarchitecture in pubescent female athletes.

The female athlete triad.

The female athlete triad represents the 3 interrelated components: of energy availability (EA), menstrual function and bone health. Each component exists on a spectrum ranging from optimal health to dysfunction. Screening for the triad during the annual wellness exam, the preparticipation physical evaluation (PPE) or when the athlete presents with any single component can help identify athletes at risk. A multidisciplinary team is helpful in managing the treatment of the Triad which relies on improving EA. Screening, early recognition and aggressive treatment is important, especially in adolescent athletes to optimize bone health.

Triathlete with Multiple Stress Fractures in the Lower Limbs: Case Report and Literature Review.

Recurrent stress fractures rarely affect the same athlete. We present the case of a female triathlete who suffered multiple stress fractures in both tibias, the right fibula, and the left femoral neck. Conservative treatment was instituted in all episodes, with rest, reduced training load, and physical therapy rehabilitation. The relative energy deficiency in sport syndrome, along with an eating disorder, training overload, and osteopenia, was identified as a risk factor. Although rare, multiple stress fractures can occur in female triathletes. These patients must be screened for risk factors associated with biomechanics, nutrition, and training to develop an effective prevention and treatment program.

Triathlete with Multiple Stress Fractures in the Lower Limbs: Case Report and Literature Review / Triatleta com múltiplas fraturas por estresse nos membros inferiores: Relato de um caso e revisão da literatura

Abstract Recurrent stress fractures rarely affect the same athlete. We present the case of a female triathlete who suffered multiple stress fractures in both tibias, the right fibula, and the left femoral neck. Conservative treatment was instituted in all episodes, with rest, reduced training load, and physical therapy rehabilitation. The relative energy deficiency in sport syndrome, along with an eating disorder, training overload, and osteopenia, was identified as a risk factor. Although rare, multiple stress fractures can occur in female triathletes. These patients must be screened for risk factors associated with biomechanics, nutrition, and training to develop an effective prevention and treatment program.

Resumo Fraturas por estresse recorrentes num mesmo atleta são raras. Apresentamos o caso de uma triatleta que sofreu múltiplas fraturas por estresse na tíbia bilateral, na fíbula direita e no colo femoral esquerdo. O tratamento conservador foi instituído em todos os episódios, com repouso, redução da carga de treino e reabilitação fisioterápica. Foi identificada como fator de risco a síndrome da deficiência energética relativa no esporte, com distúrbio alimentar, sobrecarga de treino e osteopenia. Mesmo que seja raro, múltiplas fraturas por estresse podem ocorrer em mulheres triatletas, nas quais é importante avaliar os fatores de risco associados à biomecânica, nutrição e ao treinamento para arquitetar um programa de prevenção e tratamento efetivos.

Cultural adaptation and validation of the low energy availability in females questionnaire (leaf-q) / Adaptación cultural y validación del low energy availability in females questionnaire (leaf-q) / Adaptação cultural e validação do low energy availability in females questionnaire (leaf-q)

ABSTRACT Introduction: Low energy availability, amenorrhea and osteoporosis make up the Female Athlete Triad observed in physically active females and athletes. The Low Energy Availability in Females Questionnaire (LEAF-Q) was created with the purpose of identifying female athletes at risk for the Female Athlete Triad. Objective: To translate and culturally adapt the LEAF-Q for Brazilian Portuguese and validate it in a group of Brazilian athletes. Methods: The first stage of the study consisted of translation, cultural adaptation and content validation of the questionnaire in 20 athletes. In the second stage, for the test-retest reliability analysis and the construct validation, the final adapted version was applied in a sample of 127 athletes from various sports disciplines, 54 of whom responded to the questionnaire on a second occasion. For the test-retest reliability analysis, the intraclass correlation coefficient (ICC) was calculated and the paired t-test, McNemar's test and Bland-Altman plot were carried out. The construct validation modeled by known or contrasted groups was carried out by comparing the mean LEAF-Q scores of group 1 (athletes who practiced weight-sensitive sports) with those of group 2 (athletes who practiced team sports) using the Student's t test. Results: The Brazilian version of the LEAF-Q showed excellent test-retest reliability, with an ICC of 0.92. The construct validity by known or contrasted groups was confirmed after demonstrating that athletes who practiced weight-sensitive sports had a higher LEAF-Q mean score than athletes who practiced team sports (p≤0.05). Conclusion: The Brazilian version of the LEAF-Q is an important tool, which presented textual and cultural adequacy, proved to be reliable in terms of test-retest reliability, and presents evidence of validity to investigate the risk of the triad. Level of evidence II; Diagnostic Studies - Investigating a diagnostic instrument .

RESUMEN Introducción: La baja energía disponible, amenorrea y osteoporosis conforman la Tríada de la mujer deportista, y afecta a mujeres físicamente activas y atletas. El cuestionario Low Energy Availability in Females Questionnaire (LEAF-Q) fue creado con la finalidad de identificar a atletas del sexo femenino en riesgo de Tríada de la mujer deportista. Objetivo: Traducir y adaptar culturalmente al portugués de Brasil y validar el LEAF-Q en un grupo de atletas brasileñas. Métodos: La primera etapa del estudio consistió en traducción, adaptación cultural y validación de contenido del instrumento en 20 atletas. En la segunda etapa, para el análisis de la confiabilidad test-retest y validación de constructo, la versión final adaptada del cuestionario fue aplicada a una muestra de 127 atletas de diversas modalidades y, entre ellas, 54 respondieron el cuestionario en una segunda ocasión. Para el análisis de la confiabilidad test-retest fue calculado el coeficiente de correlación intraclase (ICC), así como la realización de los tests t pareado, de McNemar y del gráfico de Bland-Altman. La validación de constructo modelada por grupos conocidos o contrastados fue realizada a partir de la comparación de las puntuaciones promedio del LEAF-Q del grupo 1 (atletas de modalidades sensibles al peso) y del grupo 2 (atletas de deportes colectivos), empleando el test t de Student. Resultados: La versión brasileña de LEAF-Q presentó excelente confiabilidad de test-retest, con ICC de 0,92. La validez de constructo por grupos conocidos o contrastados fue confirmada al demostrar que atletas de modalidades sensibles al peso tienen puntuación promedio mayor en el LEAF-Q que atletas de deportes colectivos (p ≤ 0,05). Conclusión: La versión brasileña del LEAF-Q es una herramienta importante, que presentó adecuación textual y cultural, probó ser confiable, en términos de confiabilidad de test-retest, y presenta evidencias de validación para investigar el riesgo de tríada. Nivel de evidencia II; Estudios diagnósticos - Investigación de un instrumento diagnóstico .

RESUMO Introdução: A baixa energia disponível, amenorreia e osteoporose compõe a tríade da mulher atleta, e afeta mulheres fisicamente ativas e atletas. O questionário Low Energy Availability in Females Questionnaire (LEAF-Q) foi criado com a finalidade de identificar atletas do sexo feminino em risco de tríade da mulher atleta. Objetivo: Traduzir e adaptar culturalmente para o português do Brasil e validar o LEAF-Q em um grupo de atletas brasileiras. Métodos: A primeira etapa do estudo consistiu em tradução, adaptação cultural e validação de conteúdo do instrumento em 20 atletas. Na segunda etapa, para a análise da confiabilidade teste-reteste e validação de construto, a versão final adaptada do questionário foi aplicada em uma amostra de 127 atletas de diversas modalidades e, dentre elas, 54 responderam o questionário em uma segunda ocasião. Para a análise da confiabilidade teste-reteste, foi calculado o coeficiente de correlação intraclasse (ICC), assim como a realização dos testes t pareado, de McNemar e do gráfico de Bland-Altman. A validação de construto modelada por grupos conhecidos ou contrastados foi realizada a partir da comparação das pontuações médias do LEAF-Q do grupo 1 (atletas de modalidades sensíveis ao peso) e do grupo 2 (atletas de esportes coletivos), empregando o teste t de Student. Resultados: A versão brasileira do LEAF-Q apresentou excelente confiabilidade teste-reteste, com ICC de 0,92. A validade de construto por grupos conhecidos ou contrastados foi confirmada ao demonstrar que atletas de modalidades sensíveis ao peso têm pontuação média maior no LEAF-Q do que atletas de esportes coletivos (p ≤ 0,05). Conclusão: A versão brasileira do LEAF-Q é uma ferramenta importante, que apresentou adequação textual e cultural, provou ser confiável, em termos de confiabilidade teste-reteste e apresenta evidências de validação para investigar o risco de tríade. Nível de evidência II; Estudos diagnósticos - Investigação de um instrumento diagnóstico .

Review: questionnaires as measures for low energy availability (LEA) and relative energy deficiency in sport (RED-S) in athletes.

BACKGROUND: A sustained mismatch between energy intake and exercise energy expenditure (EEE) can lead to Low Energy Availability (LEA), health and performance impairments characteristic of Relative Energy Deficiency in Sport (RED-S). Questionnaires can conveniently identify symptoms and/or LEA/ RED-S risk factors. This study aimed to systematically identify, and critique questionnaires used or developed to measure LEA/ RED-S risk in athletic populations. METHODS: A systematic search was conducted using PubMed database. Full text articles were included if: (i) the questionnaire(s) in the study identified LEA and/or RED-S risk; (ii) studies developed questionnaires to identify LEA and/or RED-S risk; (iii) participants belonged to athletic population(s); and (iv) in English. RESULTS: Thirty-three articles met the inclusion criteria and were reviewed, 13 questionnaires were identified. Eight questionnaires had undergone validation procedures, and three questionnaires included questions related to EEE. The most widely used validated questionnaires were Low Energy Availability in Females Questionnaire (LEAF-Q) (48% articles) and Eating Disorder Examination Questionnaire (EDE-Q) (12% articles). The LEAF-Q determines LEA risk from symptoms but cannot be used in males as nearly half of the items (n = 12) relate to menstrual function. The EDE-Q serves as a surrogate marker of LEA risk in both sexes, as it measures a major risk factor of LEA, disordered eating. Better validation is needed for many questionnaires and more are needed to address LEA/RED-S risk in male athletes. CONCLUSION: These questionnaires may be effective in identifying intentional energy restriction but less valuable in identifying inadvertently failure to increase energy intake with increased EEE.

Além da tríade da mulher atleta: o novo conceito de deficiência relativa de energia no esporte / Beyond the female athlete triad: the new concept of relative energy deficiency in sport

"Tríade da mulher atleta" e "deficiência relativa de energia no esporte" são afecções comuns encontradas em esportistas. Tendo como fisiopatologia a disponibilidade energética negativa, essas síndromes têm impacto negativo na saúde das atletas. Apesar de serem frequentemente discutidas entre especialistas vinculados ao mundo desportivo, ainda são pouco conhecidas entre outras especialidades. Essa revisão da literatura foi proposta com o intuito de expor o problema ao ginecologista e obstetra, considerando esses profissionais importantes aliados na prevenção e diagnóstico precoce. Da mesma maneira, a intervenção terapêutica correta minimiza os diversos prejuízos à saúde e melhora o desempenho esportivo.(AU)

"Female athlete triad" and "relative energy deficiency in sport" are conditions relatively common among women participating in sports. Its pathophysiology based on negative energy availability, these syndromes have a negative impact on the athlete's health. Although they are frequently discussed among specialists linked to the sports all over the world, a little has been known among other physicians. This literature review was proposed in order to expose the problem to the gynecologist and obstetrician, considering these professionals as important allies in prevention and early diagnosis. In the same way, the correct therapeutic intervention allows to minimizes the numerous damages to athlete's health and to improve their sports performance.(AU)

A tríade da atleta / The female athlete triad

A Tríade da Atleta (TA) é uma síndrome que se manifesta na mulher por meio da baixa disponibilidade de energia (com ou sem distúrbios alimentares), disfunção menstrual e baixa densidade mineral óssea (DMO). Geralmente, acomete pessoas envolvidas com a prática de atividades físicas que enfatizam o emagrecimento.(1,2,3) O diagnóstico pode ser feito por meio da análise do Índice de Massa Corporal (IMC) da paciente; pelo cálculo da disponibilidade de energia; exames de densitometria óssea e radiografia da coluna vertebral, associados à presença de menstruações infrequentes ou amenorreia no ciclo menstrual da paciente. A incidência da TA vem aumentando na atualidade devido à maior divulgação dos benefícios da prática esportiva e à preocupação excessiva com a estética corporal imposta pela sociedade em que vivemos. Os profissionais da saúde devem estar aptos a detectar precocemente os sinais da TA para dar início ao tratamento, uma vez que este é o fator mais importante para diminuir as severas consequências ao organismo.(3) O presente artigo tem como objetivo informar sobre a existência dessa síndrome, com destaque para os métodos diagnósticos e o tratamento.(AU)

The Athlete Triad (AT) is a syndrome that is manifested in women through low energy availability with or without eating disorders, menstrual dysfunction and low bone mineral density (BMD). Usually affects people involved in physical activities that emphasize weight loss. (1,2,3) The diagnosis can be made through the patient's Body Mass Index (BMI) analysis; by calculating the availability of energy; examination of bone densitometry and radiography of the spine associated with infrequent periods or amenorrhea in the patient's menstrual cycle. The incidence of AT is increasing today because the dissemination of sports benefits and excessive concern with body imposed by society. Health professionals must be able to detect early signs of AT to start the treatment, because is the most important factor to reduce the severe consequences on the body.(3) This article has the objective to inform health professionals about the existence of this syndrome with emphasis on diagnostic methods and treatment tools.(AU)

The female athlete triad: special considerations for adolescent female athletes.

The number of adolescent girls participating in sports has dramatically increased throughout the last few decades. In the early 1990's, an association between amenorrhea, osteoporosis, and disordered eating was recognized and eventually labeled the 'Female Athlete Triad'. In 1997, the Task Force on Women's Issues of American College of Sports Medicine (ACSM) published a position statement on this triad of conditions that were becoming increasingly more prevalent amongst female athletes. Initially, the 'Female Athlete Triad' was characterized by disordered eating, amenorrhea, and osteoporosis. However, as the number of adolescent female athletes has continued to grow, there has been further research and investigation into this field and the triad has evolved in definition. It is essential for all health care practitioners and other professionals who care for adolescent athletes to be attentive to the clinical signs, detection, evaluation, and management of the female athlete triad, as the sequelae can have a significant impact on the health and well-being of a young person both in the short and long-term.

Understanding Eating Disorders in Elite Gymnastics: Ethical and Conceptual Challenges.

Eating disorders and disordered eating are more common in high performance sports than the general population, and particularly so in high performance aesthetic sports. This paper presents some of the conceptual difficulties in understanding and diagnosing eating disorders in high performance gymnasts. It presents qualitative and quantitative data from a study designed to ascertain the pattern of eating disorder symptoms, depressive symptoms and levels of self-esteem among national and international level gymnasts from the UK in the gymnastic disciplines of sport acrobatics, tumbling, and rhythmic gymnastics.

Pre-participation gynecological evaluation of female athletes: a new proposal / Avaliação ginecológica pré-participação da mulher atleta: uma nova proposta

Objective To propose the inclusion of a gynecological investigation during the evaluation of athletes before competitions, using a specific instrument called the Pre-participation Gynecological Examination (PPGE). Methods The study assessed 148 athletes, mean age of 15.4±2.0 years, who engaged in eight different sports modalities, and who responded to a questionnaire named Pre-Participation Gynecological Examination (PPGE), to the International Consultation on Incontinence Questionnaire - Short Form (for urinary loss), and to the Eating Attitudes Test (for eating disorders). Results Fifty percent of the participants reported irregular menstrual intervals, 23.0% did not know about sexually transmitted diseases, and 72.4% denied having, at least, an annual gynecological appointment. The study identified 18.2% who had urinary loss, and 15% presented with an increased risk of eating disorders. Moreover, 89.9% were not familiar with the occurrence of urinary incontinence in athletes and did not know that they were susceptible to the female athlete triad. A total of 87.1% of them stated that would not mention these issues to their coaches even if this would improve their health or performance. Conclusion The Pre-Participation Gynecological Examination can be considered an easy-to-apply instrument that allowed the diagnosis of alterations often underestimated by the athletes themselves. After its application, the alterations were identified, and determined the athletes’ referral to appropriate evaluation and treatment. .

Objetivo Propor a inclusão da investigação ginecológica durante a avaliação pré-participação de mulheres praticantes de exercício físico, por meio de um instrumento específico, denominado Pre-Participation Gynecological Examination (PPGE). Métodos Foram avaliadas 148 atletas com média de idade de 15,4±2,0 anos, participantes de oito diferentes modalidades esportivas, que responderam ao Pre-Participation Gynecological Examination, ao International Consultation on Incontinence Questionnaire - Short Form (para avaliar perda urinária) e ao Eating Attitudes Test (para avaliar alterações alimentares). Resultados Cinquenta por cento das atletas referiram irregularidade menstrual, 23% desconheciam as doenças sexualmente transmissíveis e 72,4% negaram acompanhamento ginecológico, no mínimo, anual. Foram identificados 18,2% de mulheres com perda urinária e 15% de maior risco de alterações alimentares. Além disso, 89,9% desconheciam a existência de incontinência urinária em atletas ou o fato de estarem suscetíveis à tríade da mulher atleta. Entre elas, ainda, 87,1% afirmaram não se referirem a seus técnicos sobre as questões ginecológicas, mesmo que isso pudesse melhorar sua saúde e seu desempenho. Conclusão O questionário Pre-Participation Gynecological Examination mostrou-se um instrumento de fácil aplicabilidade e permitiu o diagnóstico de alterações por vezes não valorizadas pelas próprias atletas. Após a aplicação do questionário, as alterações puderam ser identificadas, determinando o encaminhamento ...