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Amoruso I, Fonzo M, Barro A, Scardina C, Titton F, Bertoncello C, Baldovin T. Determinants of menstrual dysfunction in the female athlete triad: A cross-sectional study in Italian athletes. PSYCHOLOGY OF SPORT AND EXERCISE 2024; 73:102653. [PMID: 38670325 DOI: 10.1016/j.psychsport.2024.102653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND In 1992 the American College of Sports Medicine first described the Female Athlete Triad. The Triad is a metabolic injury involving three distinct clinical traits: low energy availability, with possible eating disorder, low bone mineral density and menstrual dysfunction (MD). Although the estimated prevalence of the Triad is low (1.2 %), single factors are common in female athletes, at all competitive levels and ages. Even though the Triad was described over two decades ago, the interrelation of the three diagnostics components is still debated: additional evidence is required to improve the multidisciplinary treatment approach for this complex condition. MD is one of the first signs of energy impairment. The present study aims at investigating MD determinants and predictors in female athletes, to allow an early diagnosis of the Triad and to implement adequate preventive strategies. MATERIALS AND METHODS An original structured questionnaire was composed to detect the presence of MD risk factors. Included participants were active female athletes within reproductive age range (15-40 years old). Anthropometric parameters and training-related factors, possibly affecting the regularity of the menstrual cycle, were investigated. RESULTS Respondents were 288 female athletes. Among them, 73.3 % were under 25 years of age; 6.6 % resulted underweight; 30.6 % reported to follow a meal plan/diet and 13.9 % declared to be a smoker. Lean sports were practiced by 30.6 % of responders. Body-weight congruence was detected in in 79.9 % of participants, whereas overestimation of body image was found in 16.3 % of athletes. Irregular menstrual cycle, a possible MD predictor, was present in 33.0 % of athletes, with 41.1 % practicing some lean sport (p = 0.007). Also, overestimation of body image suggested an increased risk of menstrual irregularity (p = 0.001). BMI <18.5 or BMI >30 could also act as risk factor, although significance was not fully obtained (p = 0.053). Overall, practice of lean sports and overestimation of body image appeared good determinants of increased menstrual irregularity (AOR 2.02 and 3.83, respectively). CONCLUSIONS Menstrual irregularity in female athletes can be considered an early predictor of MD: risk is further increased in athletes of lean sports and reporting an overestimation of self-perceived body image. Screenings and awareness programs should specifically address female athletes, because of their vulnerable-group profile. In order to define a standardized at-risk profile for Triad onset and sequelae likelihood, evaluation of menstrual regularity should especially be considered, in conjunction with the assessment of other indicators of energy availability (e.g. TEE, lean and fat mass, BMC). Testing for sport-derived stress and disordered eating attitudes is also recommended. Preventive strategy should involve the proactive engagement of sport clubs and periodic competitive sport medical assessment.
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Affiliation(s)
- Irene Amoruso
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Unit of Hygiene and Public Health, University of Padua, Padua, Italy.
| | - Marco Fonzo
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Unit of Hygiene and Public Health, University of Padua, Padua, Italy.
| | - Anna Barro
- Complex Unit of Hygiene and Public Health, Local Health Authority ULSS2 Marca Trevigiana, District of Asolo, Treviso, Italy.
| | - Claudia Scardina
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Unit of Hygiene and Public Health, University of Padua, Padua, Italy.
| | - Francesca Titton
- Complex Unit of Psychiatry UOC Psichiatria, Local Health Authority ULSS2 Marca Trevigiana, District of Pieve di Soligo, Treviso, Italy.
| | - Chiara Bertoncello
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Unit of Hygiene and Public Health, University of Padua, Padua, Italy.
| | - Tatjana Baldovin
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Unit of Hygiene and Public Health, University of Padua, Padua, Italy.
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Kuliczkowska-Płaksej J, Zdrojowy-Wełna A, Jawiarczyk-Przybyłowska A, Gojny Ł, Bolanowski M. Diagnosis and therapeutic approach to bone health in patients with hypopituitarism. Rev Endocr Metab Disord 2024; 25:513-539. [PMID: 38565758 DOI: 10.1007/s11154-024-09878-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/17/2024] [Indexed: 04/04/2024]
Abstract
The results of many studies in recent years indicate a significant impact of pituitary function on bone health. The proper function of the pituitary gland has a significant impact on the growth of the skeleton and the appearance of sexual dimorphism. It is also responsible for achieving peak bone mass, which protects against the development of osteoporosis and fractures later in life. It is also liable for the proper remodeling of the skeleton, which is a physiological mechanism managing the proper mechanical resistance of bones and the possibility of its regeneration after injuries. Pituitary diseases causing hypofunction and deficiency of tropic hormones, and thus deficiency of key hormones of effector organs, have a negative impact on the skeleton, resulting in reduced bone mass and susceptibility to pathological fractures. The early appearance of pituitary dysfunction, i.e. in the pre-pubertal period, is responsible for failure to achieve peak bone mass, and thus the risk of developing osteoporosis in later years. This argues for the need for a thorough assessment of patients with hypopituitarism, not only in terms of metabolic disorders, but also in terms of bone disorders. Early and properly performed treatment may prevent patients from developing the bone complications that are so common in this pathology. The aim of this review is to discuss the physiological, pathophysiological, and clinical insights of bone involvement in pituitary disease.
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Affiliation(s)
- Justyna Kuliczkowska-Płaksej
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wybrzeże Pasteura 4, Wrocław, 50-367, Poland
| | - Aleksandra Zdrojowy-Wełna
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wybrzeże Pasteura 4, Wrocław, 50-367, Poland
| | - Aleksandra Jawiarczyk-Przybyłowska
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wybrzeże Pasteura 4, Wrocław, 50-367, Poland.
| | - Łukasz Gojny
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wybrzeże Pasteura 4, Wrocław, 50-367, Poland
| | - Marek Bolanowski
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wybrzeże Pasteura 4, Wrocław, 50-367, Poland
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Haines MS, Kaur S, Scarff G, Lauze M, Gerweck A, Slattery M, Oreskovic NM, Ackerman KE, Tenforde AS, Popp KL, Bouxsein ML, Miller KK, Misra M. Male Runners With Lower Energy Availability Have Impaired Skeletal Integrity Compared to Nonathletes. J Clin Endocrinol Metab 2023; 108:e1063-e1073. [PMID: 37079740 PMCID: PMC10505543 DOI: 10.1210/clinem/dgad215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/19/2022] [Accepted: 04/18/2023] [Indexed: 04/22/2023]
Abstract
CONTEXT Female athletes, particularly runners, with insufficient caloric intake for their energy expenditure [low energy availability (EA) or relative energy deficiency] are at risk for impaired skeletal integrity. Data are lacking in male runners. OBJECTIVE To determine whether male runners at risk for energy deficit have impaired bone mineral density (BMD), microarchitecture, and estimated strength. DESIGN Cross-sectional. SETTING Clinical research center. PARTICIPANTS 39 men (20 runners, 19 controls), ages 16-30 years. MAIN OUTCOME MEASURES Areal BMD (dual-energy x-ray absorptiometry); tibia and radius volumetric BMD and microarchitecture (high-resolution peripheral quantitative computed tomography); failure load (microfinite element analysis); serum testosterone, estradiol, leptin; energy availability. RESULTS Mean age (24.5 ± 3.8 y), lean mass, testosterone, and estradiol levels were similar; body mass index, percent fat mass, leptin, and lumbar spine BMD Z-score (-1.4 ± 0.8 vs -0.8 ± 0.8) lower (P < .05); and calcium intake and running mileage higher (P ≤ .01) in runners vs controls. Runners with EA CONCLUSIONS Despite weight-bearing activity, skeletal integrity is impaired in male runners with lower caloric intake relative to exercise energy expenditure, which may increase bone stress injury risk. Lower estradiol and lean mass are associated with lower tibial strength in runners.
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Affiliation(s)
- Melanie S Haines
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Snimarjot Kaur
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Geetanjali Scarff
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Meghan Lauze
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Anu Gerweck
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Meghan Slattery
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Nicolas M Oreskovic
- Harvard Medical School, Boston, MA 02115, USA
- Department of Internal Medicine and Pediatrics, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Kathryn E Ackerman
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
- Female Athlete Program, Division of Sports Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Adam S Tenforde
- Harvard Medical School, Boston, MA 02115, USA
- Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Cambridge, MA 02129, USA
| | - Kristin L Popp
- Harvard Medical School, Boston, MA 02115, USA
- Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
- Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA 01760, USA
- Department of Energy, Oak Ridge Institute for Science and Education, Oak Ridge, TN 37830, USA
| | - Mary L Bouxsein
- Harvard Medical School, Boston, MA 02115, USA
- Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
- Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, Boston, MA 02115, USA
| | - Karen K Miller
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
- Division of Pediatric Endocrinology, Massachusetts General Hospital, Boston, MA 02114, USA
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Armento A, Heronemus M, Truong D, Swanson C. Bone Health in Young Athletes: a Narrative Review of the Recent Literature. Curr Osteoporos Rep 2023; 21:447-458. [PMID: 37289381 PMCID: PMC10248337 DOI: 10.1007/s11914-023-00796-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/27/2023] [Indexed: 06/09/2023]
Abstract
PURPOSE OF REVIEW The aim of this review is to discuss the most recent published scientific evidence regarding bone health in the pediatric athlete. RECENT FINDINGS Pediatric athletes commonly suffer from overuse injuries to the physes and apophyses, as well as bone stress injuries, for which magnetic resonance imaging grading of the severity of injuries may be useful in guiding return to sport. Adolescent athletes, particularly those who train indoors and during the winter season, are at risk for vitamin D deficiency, which has important implications for bone mineral density. However, the relationship between vitamin D status and traumatic fracture risk is still unclear. While the female athlete triad is a well-established condition, the current work has led to the recognition of parallel pathophysiology in male athletes, referred to as the male athlete triad. Recent evidence suggests that transdermal 17β-estradiol treatment in amenorrhoeic female athletes is an effective adjunctive treatment to improve bone mineral density in treatment of the female athlete triad. Young athletes are at risk for musculoskeletal injuries unique to the growing skeleton. Optimizing nutritional intake, particularly related to adequate vitamin D intake and prevention of the athlete triad, is critical to optimize bone health in the young athlete.
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Affiliation(s)
- Aubrey Armento
- Department of Orthopedics, University of Colorado School of Medicine, 13123 E. 16th Ave, B060, Aurora, CO 80045 USA
- Sports Medicine Center, Children’s Hospital Colorado, Aurora, CO USA
| | - Marc Heronemus
- Department of Family Medicine, University of Colorado School of Medicine, Aurora, CO USA
| | - Daniel Truong
- Department of Family Medicine, University of Colorado School of Medicine, Aurora, CO USA
| | - Christine Swanson
- Department of Medicine-Endocrinology, Diabetes, and Metabolism, University of Colorado School of Medicine, Aurora, CO USA
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Ladang A, Rauch F, Delvin E, Cavalier E. Bone Turnover Markers in Children: From Laboratory Challenges to Clinical Interpretation. Calcif Tissue Int 2023; 112:218-232. [PMID: 35243530 DOI: 10.1007/s00223-022-00964-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/17/2022] [Indexed: 01/25/2023]
Abstract
Bone turnover markers (BTMs) have been developed many years ago to study, in combination with imaging techniques, bone remodeling in adults. In children and adolescents, bone metabolism differs from adults since it implies both growth and bone remodeling, suggesting an age- and gender-dependent BTM concentration. Therefore, specific studies have evaluated BTMs in not only physiological but also pathological conditions. However, in pediatrics, the use of BTMs in clinical practice is still limited due to these many children-related specificities. This review will discuss about physiological levels of BTMs as well as their modifications under pathological conditions in children and adolescents. A focus is also given on analytical and clinical challenges that restrain BTM usefulness in pediatrics.
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Affiliation(s)
- Aurélie Ladang
- Clinical Chemistry Department, CHU de Liège, Liège, Belgium.
| | - Frank Rauch
- Shriners Hospital for Children, McGill University, Montreal, Canada
| | - Edgard Delvin
- Centre & Department of Biochemistry, Ste-Justine University Hospital Research, Université de Montréal, Montreal, Canada
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Abstract
PURPOSE OF REVIEW Adolescence and young adulthood are a critical period in the life of women for optimizing long-term bone health. Young athletes lead a demanding lifestyle with increased dietary requirements to meet the robust demands of energy expenditure to maintain a state of energy balance. During a time of fast paced changes and unpredictable societal demands on young athletes, it is important to review the severe consequences of energy deficiency and options for adequate management. RECENT FINDINGS This review focuses on hormonal adaptations that occur in energy deficient female athletes that lead to menstrual irregularities and impaired bone health, increasing the risk for stress and other fractures. We also describe management strategies to mitigate the consequences of limited energy availability on bone and other outcomes. SUMMARY These strategies should help guide the management of young female athletes to prevent irreversible changes to their bone health. Identifying current knowledge should help increase awareness among medical providers, which can then be communicated to the sports community, parents, and athletes.
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Affiliation(s)
- Jacqueline Maya
- Division of Pediatric Endocrinology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
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Xu AL, Beck JJ, Sweeney EA, Severson MN, Page AS, Lee RJ. Understanding the Cheerleader as an Orthopaedic Patient: An Evidence-Based Review of the Literature. Orthop J Sports Med 2022; 10:23259671211067222. [PMID: 35083360 PMCID: PMC8785319 DOI: 10.1177/23259671211067222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 09/27/2021] [Indexed: 11/24/2022] Open
Abstract
Cheerleading is a highly popular youth sport in the United States and has been increasingly recognized in recent years for its athleticism and competitive nature. The sport has changed dramatically since its inception. When the sport of cheerleading was first developed, its primary purpose was to entertain crowds and support other athletes. Today, cheerleaders are competitive athletes themselves. Cheerleaders, most of whom are in the pediatric age group, and their parents commonly approach orthopaedic surgeons and sports medicine physicians with questions regarding the risks associated with participation in the sport. Appropriate clinical guidance is especially important for athletes returning to the sport after an injury. However, unlike other popular sports (eg, football, basketball, and volleyball), the intricacies of cheerleading are not well-known to those outside the sport, including many health care providers. Previous studies have reported on the epidemiological patterns of injuries associated with cheerleading and how such aesthetic sports affect the body, finding that fractures and concussions are prevalent and that catastrophic injuries are more common than in most other sports. Here, we provide an evidence-based discussion of 10 pertinent topics regarding cheerleading and its risks to the musculoskeletal system. The purpose of this review is to provide a comprehensive resource for orthopaedic surgeons and sports medicine physicians who care for these athletes.
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Affiliation(s)
- Amy L. Xu
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Jennifer J. Beck
- Orthopaedic Institute for Children/UCLA, Santa Monica, California, USA
| | - Emily A. Sweeney
- Sports Medicine Center, Children’s Hospital Colorado, Aurora, Colorado, USA
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Megan N. Severson
- Carilion Clinic Orthopaedic Surgery, Roanoke, Virginia, USA
- Department of Orthopaedic Surgery, Virginia Tech-Carilion School of Medicine, Roanoke, Virginia, USA
| | - A. Stacie Page
- Department of Physical Medicine and Rehabilitation, The Johns Hopkins Hospital, White Marsh, Maryland, USA
| | - R. Jay Lee
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland, USA
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Kelly AW, Hecht S. The female athlete triad. ANNALS OF JOINT 2022; 7:6. [PMID: 38529159 PMCID: PMC10929343 DOI: 10.21037/aoj-2020-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 08/24/2020] [Indexed: 03/27/2024]
Abstract
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.
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Affiliation(s)
- Amanda Weiss Kelly
- University Hospitals of Cleveland, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland, OH, USA
| | - Suzanne Hecht
- University Hospitals of Cleveland, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland, OH, USA
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Pedreira CC, Maya J, Misra M. Functional hypothalamic amenorrhea: Impact on bone and neuropsychiatric outcomes. Front Endocrinol (Lausanne) 2022; 13:953180. [PMID: 35937789 PMCID: PMC9355702 DOI: 10.3389/fendo.2022.953180] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/29/2022] [Indexed: 12/01/2022] Open
Abstract
Functional hypothalamic amenorrhea is a state of reversible hypogonadism common in adolescents and young women that can be triggered by energy deficit or emotional stress or a combination of these factors. Energy deficit may be a consequence of (i) reduced caloric intake, as seen in patients with eating disorders, such as anorexia nervosa, or (ii) excessive exercise, when caloric intake is insufficient to meet the needs of energy expenditure. In these conditions of energy deficit, suppression of the hypothalamic secretion of gonadotrophin-releasing hormone (with resulting hypoestrogenism) as well as other changes in hypothalamic-pituitary function may occur as an adaptive response to limited energy availability. Many of these adaptive changes, however, are deleterious to reproductive, skeletal, and neuropsychiatric health. Particularly, normoestrogenemia is critical for normal bone accrual during adolescence, and hypoestrogenemia during this time may lead to deficits in peak bone mass acquisition with longstanding effects on skeletal health. The adolescent years are also a time of neurological changes that impact cognitive function, and anxiety and depression present more frequently during this time. Normal estrogen status is essential for optimal cognitive function (particularly verbal memory and executive function) and may impact emotion and mood. Early recognition of women at high risk of developing hypothalamic amenorrhea and its timely management with a multidisciplinary team are crucial to prevent the severe and long-term effects of this condition.
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Affiliation(s)
- Clarissa Carvalho Pedreira
- Division of Pediatric Endocrinology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
- Neuroendocrine Unit, Center for Endocrinology and Diabetes of Bahia State, Salvador, Brazil
- *Correspondence: Clarissa Carvalho Pedreira,
| | - Jacqueline Maya
- Division of Pediatric Endocrinology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - Madhusmita Misra
- Division of Pediatric Endocrinology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
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Indirli R, Lanzi V, Mantovani G, Arosio M, Ferrante E. Bone health in functional hypothalamic amenorrhea: What the endocrinologist needs to know. Front Endocrinol (Lausanne) 2022; 13:946695. [PMID: 36303862 PMCID: PMC9592968 DOI: 10.3389/fendo.2022.946695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/21/2022] [Indexed: 11/24/2022] Open
Abstract
In the original definition by Klinefelter, Albright and Griswold, the expression "hypothalamic hypoestrogenism" was used to describe functional hypothalamic amenorrhoea (FHA). Given the well-known effects of estrogens on bone, the physiopathology of skeletal fragility in this condition may appear self-explanatory. Actually, a growing body of evidence has clarified that estrogens are only part of the story. FHA occurs in eating disorders, overtraining, and during psychological or physical stress. Despite some specific characteristics which differentiate these conditions, relative energy deficiency is a common trigger that initiates the metabolic and endocrine derangements contributing to bone loss. Conversely, data on the impact of amenorrhoea on bone density or microarchitecture are controversial, and reduced bone mass is observed even in patients with preserved menstrual cycle. Consistently, oral estrogen-progestin combinations have not proven beneficial on bone density of amenorrheic women. Low bone density is a highly prevalent finding in these patients and entails an increased risk of stress or fragility fractures, and failure to achieve peak bone mass and target height in young girls. Pharmacological treatments have been studied, including androgens, insulin-like growth factor-1, bisphosphonates, denosumab, teriparatide, leptin, but none of them is currently approved for use in FHA. A timely screening for bone complications and a multidisciplinary, customized approach aiming to restore energy balance, ensure adequate protein, calcium and vitamin D intake, and reverse the detrimental metabolic-endocrine changes typical of this condition, should be the preferred approach until further studies are available.
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Affiliation(s)
- Rita Indirli
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Endocrinology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- *Correspondence: Rita Indirli,
| | - Valeria Lanzi
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Endocrinology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Giovanna Mantovani
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Endocrinology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Maura Arosio
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Endocrinology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Emanuele Ferrante
- Endocrinology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
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Tsukahara Y, Torii S, Yamasawa F, Iwamoto J, Otsuka T, Goto H, Kusakabe T, Matsumoto H, Akama T. Bone parameters of elite athletes with oligomenorrhea and prevalence seeking medical attention: a cross-sectional study. J Bone Miner Metab 2021; 39:1009-1018. [PMID: 34101019 DOI: 10.1007/s00774-021-01234-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 04/28/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Since the definition of secondary amenorrhea is cessation of regular menses for more than 3 months, it is likely that athletes with irregular menstrual cycles, including oligomenorrhea, do not consider the condition as serious. However, the consequences of untreated oligomenorrhea have not been investigated in elite track and field athletes. MATERIALS AND METHODS The cohort consisted of 91 elite-level track and field athletes. Body compositions, including bone parameters and bone turnover markers (BTMs), were measured. RESULTS Among the 91 participants, 52 were eumenorrheic and 33 were oligomenorrheic. The eumenorrheic athletes had significantly higher bone mineral density (BMD) and bone mineral content (BMC) of the lumbar spine, lower extremities, and whole body than had the oligomenorrheic athletes (p < 0.01). There were no significant differences in BTMs between the two groups, but oligomenorrheic athletes had significantly lower percent body fat. CONCLUSION More than 40% of the elite-level female track and field athletes in this study reported menstrual disorders with oligomenorrhea as the most common. However, none sought medical attention. As compared to the eumenorrheic athletes, the oligomenorrheic athletes had lower BMC and BMD. Hence, if an athlete is oligomenorrheic, bone parameter measurements are considerably important.
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Affiliation(s)
- Yuka Tsukahara
- Waseda Institute for Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan.
- Institute for Integrated Sports Medicine, Keio University, 35 Shinanomachi, Shinjyuku-ku, Tokyo, 160-0016, Japan.
| | - Suguru Torii
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan
| | - Fumihiro Yamasawa
- Marubeni Health Promotion Center, 7-1, Nihonbashi 2-chome, Chuo-ku, Tokyo, 103-6060, Japan
| | - Jun Iwamoto
- Bone and Joint Disease Center, Keiyu Orthopaedic Hospital, 2267 Akoudacho, Tatebayashi, Gunma, 374-0013, Japan
| | - Takanobu Otsuka
- School of Education, Tokai Gakuen University, 901 Nakahira Tempakuku, Nagoya, 468-8514, Japan
| | - Hideyuki Goto
- Department of Health and Fitness, Faculty of Wellness, Shigakkan University, 55 Nakoyama Yokonemachi, Obu, 474-8651, Japan
| | - Torao Kusakabe
- Department of Orthopedic Surgery, Japanese Red-Cross Kyoto Daini Hospital, 355-5 Haruobi-cho, Kamigyo-ku, Kyoto, 602-8026, Japan
| | - Hideo Matsumoto
- Public Interest Incorporated Foundation, Sports Medicine Foundation, 8-1-9 Nishishinjyuku, Shinjyukuku, Tokyo, 160-0023, Japan
| | - Takao Akama
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan
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Kontele I, Vassilakou T. Nutritional Risks among Adolescent Athletes with Disordered Eating. CHILDREN-BASEL 2021; 8:children8080715. [PMID: 34438606 PMCID: PMC8394476 DOI: 10.3390/children8080715] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/16/2021] [Accepted: 08/19/2021] [Indexed: 01/29/2023]
Abstract
In their attempt to achieve the optimum weight or body shape for their activity, athletes frequently use harmful weight-control practices that may lead to the development of disordered eating or eating disorders. These practices are linked to several medical and mental consequences that may be more serious in adolescent athletes, as their bodies must meet both intensive growth demands and training requirements at the same time. Among other consequences, adolescent athletes may be at nutritional risk, due to their high nutrient needs and unhealthy eating behaviors. A literature review was conducted to examine the main nutritional risks and malnutrition issues faced by adolescent athletes that present disordered eating attitudes or eating disorders. Most studies refer to adult elite athletes, however research on adolescent athletes also indicates that the most common nutritional risks that may arise due to disordered eating include energy, macronutrient and micronutrient deficiencies, dehydration and electrolyte imbalances and changes in body composition that may lead to menstrual abnormalities, and decreased bone mass density. Educational programs and early detection of disordered eating and eating disorders are crucial to avoid the emergence and ensure timely management of nutrition-related problems in the vulnerable group of adolescent athletes.
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Abstract
The aim of the study is to present the problem of functional hypothalamic amenorrhea, taking into account any disease and treatment, diagnosis, and consequences of this disease. We searched PubMed (MEDLINE) and included 38 original and review articles concerning functional hypothalamic amenorrhea. Functional hypothalamic amenorrhea is the most common cause of secondary amenorrhea in women of childbearing age. It is a reversible disorder caused by stress related to weight loss, excessive exercise and/or traumatic mental experiences. The basis of functional hypothalamic amenorrhea is hormonal, based on impaired pulsatile GnRH secretion in the hypothalamus, then decreased secretion of gonadotropins, and, consequently, impaired hormonal function of the ovaries. This disorder leads to hypoestrogenism, manifested by a disturbance of the menstrual cycle in the form of amenorrhea, leading to anovulation. Prolonged state of hypoestrogenism can be very detrimental to general health, leading to many harmful short- and long-term consequences. Treatment of functional hypothalamic amenorrhea should be started as soon as possible, and it should primarily involve lifestyle modification. Only then should pharmacological treatment be applied. Importantly, treatment is most often long-term, but it results in recovery for the majority of patients. Effective therapy, based on multidirectional action, can protect patients from numerous negative impacts on fertility, cardiovascular system and bone health, as well as reducing mental morbidity.
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Castanier C, Bougault V, Teulier C, Jaffré C, Schiano-Lomoriello S, Vibarel-Rebot N, Villemain A, Rieth N, Le-Scanff C, Buisson C, Collomp K. The Specificities of Elite Female Athletes: A Multidisciplinary Approach. Life (Basel) 2021; 11:622. [PMID: 34206866 PMCID: PMC8303304 DOI: 10.3390/life11070622] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 12/19/2022] Open
Abstract
Female athletes have garnered considerable attention in the last few years as more and more women participate in sports events. However, despite the well-known repercussions of female sex hormones, few studies have investigated the specificities of elite female athletes. In this review, we present the current but still limited data on how normal menstrual phases, altered menstrual phases, and hormonal contraception affect both physical and cognitive performances in these elite athletes. To examine the implicated mechanisms, as well as the potential performances and health risks in this population, we then take a broader multidisciplinary approach and report on the causal/reciprocal relationships between hormonal status and mental and physical health in young (18-40 years) healthy females, both trained and untrained. We thus cover the research on both physiological and psychological variables, as well as on the Athlete Biological Passport used for anti-doping purposes. We consider the fairly frequent discrepancies and summarize the current knowledge in this new field of interest. Last, we conclude with some practical guidelines for eliciting improvements in physical and cognitive performance while minimizing the health risks for female athletes.
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Affiliation(s)
- Carole Castanier
- CIAMS, Université Paris-Saclay, 91405 Orsay, France; (C.C.); (C.T.); (S.S.-L.); (N.V.-R.); (A.V.); (N.R.); (C.L.-S.)
- CIAMS, Université d’Orléans, 45067 Orléans, France
| | | | - Caroline Teulier
- CIAMS, Université Paris-Saclay, 91405 Orsay, France; (C.C.); (C.T.); (S.S.-L.); (N.V.-R.); (A.V.); (N.R.); (C.L.-S.)
- CIAMS, Université d’Orléans, 45067 Orléans, France
| | | | - Sandrine Schiano-Lomoriello
- CIAMS, Université Paris-Saclay, 91405 Orsay, France; (C.C.); (C.T.); (S.S.-L.); (N.V.-R.); (A.V.); (N.R.); (C.L.-S.)
- CIAMS, Université d’Orléans, 45067 Orléans, France
| | - Nancy Vibarel-Rebot
- CIAMS, Université Paris-Saclay, 91405 Orsay, France; (C.C.); (C.T.); (S.S.-L.); (N.V.-R.); (A.V.); (N.R.); (C.L.-S.)
- CIAMS, Université d’Orléans, 45067 Orléans, France
| | - Aude Villemain
- CIAMS, Université Paris-Saclay, 91405 Orsay, France; (C.C.); (C.T.); (S.S.-L.); (N.V.-R.); (A.V.); (N.R.); (C.L.-S.)
- CIAMS, Université d’Orléans, 45067 Orléans, France
| | - Nathalie Rieth
- CIAMS, Université Paris-Saclay, 91405 Orsay, France; (C.C.); (C.T.); (S.S.-L.); (N.V.-R.); (A.V.); (N.R.); (C.L.-S.)
- CIAMS, Université d’Orléans, 45067 Orléans, France
| | - Christine Le-Scanff
- CIAMS, Université Paris-Saclay, 91405 Orsay, France; (C.C.); (C.T.); (S.S.-L.); (N.V.-R.); (A.V.); (N.R.); (C.L.-S.)
- CIAMS, Université d’Orléans, 45067 Orléans, France
| | - Corinne Buisson
- Département des Analyses, AFLD, 92290 Chatenay-Malabry, France;
| | - Katia Collomp
- CIAMS, Université Paris-Saclay, 91405 Orsay, France; (C.C.); (C.T.); (S.S.-L.); (N.V.-R.); (A.V.); (N.R.); (C.L.-S.)
- CIAMS, Université d’Orléans, 45067 Orléans, France
- Département des Analyses, AFLD, 92290 Chatenay-Malabry, France;
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15
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Chandler AJ, Cintineo HP, Sanders DJ, McFadden BA, Arent MA, Monaco R, Arent SM. Agreement between B-Mode Ultrasound and Air Displacement Plethysmography in Preprofessional Ballet Dancers. Med Sci Sports Exerc 2021; 53:653-657. [PMID: 32796253 DOI: 10.1249/mss.0000000000002489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE This study aimed to assess the agreement between B-mode ultrasound and air displacement plethysmography (ADP) body composition results in preprofessional ballet dancers. METHODS Male (n = 21, Mage = 17.2 ± 1.7 yr, MBMI = 20.5 ± 2.0 kg·m-2) and female (n = 27, Mage = 16.1 ± 1.4 yr, MBMI = 18.3 ± 1.3 kg·m-2) dancers were assessed by ADP and ultrasound to determine body fat percentage (%BF), fat mass (FM), and fat-free mass (FFM). Pearson's correlations were used to assess agreement, and paired t-tests were used to determine differences between devices (α = 0.05). Ultrasound validity was assessed using SEE and total error. Bland-Altman plots were used to identify 95% limits of agreement. RESULTS Agreement was high for %BF (females, r = 0.94; males, r = 0.77), FM (females, r = 0.94; males, r = 0.73), and FFM (females, r = 0.95; males, r = 0.99). However, ultrasound overestimated %BF and FM and underestimated FFM (P < 0.05) compared with ADP in females only. In addition, there were stronger agreement and lower error for FFM compared with both %BF and FM regardless of sex. CONCLUSION There is strong agreement between ultrasound and ADP in this population. Although ultrasound may be a useful field tool to assess body composition, future research is needed to refine %BF equations in this population to reduce calculation errors.
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Affiliation(s)
- Alexa J Chandler
- Department of Exercise Science, University of South Carolina, Columbia, SC
| | - Harry P Cintineo
- Department of Exercise Science, University of South Carolina, Columbia, SC
| | - David J Sanders
- Rutgers, The State University of New Jersey, New Brunswick, NJ
| | - Bridget A McFadden
- Department of Exercise Science, University of South Carolina, Columbia, SC
| | - Michelle A Arent
- Department of Health Promotion, Education, and Behavior, University of South Carolina, Columbia, SC
| | | | - Shawn M Arent
- Department of Exercise Science, University of South Carolina, Columbia, SC
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Zhang J, Wang Y, Cheng KL, Cheuk K, Lam TP, Hung ALH, Cheng JCY, Qiu Y, Müller R, Christen P, Lee WYW. Association of higher bone turnover with risk of curve progression in adolescent idiopathic scoliosis. Bone 2021; 143:115655. [PMID: 32979537 DOI: 10.1016/j.bone.2020.115655] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/03/2020] [Accepted: 09/18/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Emerging evidence suggest abnormal bone metabolism and defective bone qualities are associated to etipathogenesis of Adolescent Idiopathic Scoliosis (AIS). Systemic low bone mass is important prognosticator to predict risk of curve progression in AIS. The underlying mechanism is still unclear. We hypothesize that aberrant bone turnover correlates with bone qualities in AIS and associates to risk of curve progression. SUBJECTS AND METHODS Two cohorts were included in this study. The case-control study recruited 161 AIS girls and 161 ethnic/age-matched healthy girls. The longitudinal cohort recruited 128 AIS girls with two-year follow-up. Areal bone mineral density (BMD) at femoral necks were measured with dual-energy x-ray absorptiometry (DXA), and bone qualities of distal radius by high-resolution peripheral quantitative computed tomography (HR-pQCT). Time-lapse analysis of registered HR-pQCT images estimated local bone remodeling quantitatively. Serum levels of CTX and P1NP were measured with ELISA kits. RESULTS AIS presented significantly higher serum level of P1NP. In both AIS and control, the negative correlations were consistently observed between serum CTX/P1NP levels and most cortical bone quality parameters after adjustment to age. Significant correlation between serum bone turnover markers and trabecular bone parameters have been observed only in control. Progressive AIS has significant increase of serum P1NP level at first clinic visit. Time lapse register analysis showed high bone resorption and low net bone gain was associated with risk of progression in AIS. CONCLUSIONS Our study characterized AIS with higher serum bone turnover markers, which may contribute to defective bone qualities in AIS. For the first time, we showed that progressive AIS had higher systemic bone turnover markers level and local bone remodeling. This fresh evidence indicated association between disrupted bone turnover and risk of progression of AIS, which set the foundation of new prognostic method and of novel treatment target to curve progression. This study demonstrated the importance of bone metabolism in developing disease management of AIS to achieve goal of early prediction and non-surgical modulation.
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Affiliation(s)
- Jiajun Zhang
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China
| | - Yujia Wang
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China
| | - Ka-Lo Cheng
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China
| | - Kayee Cheuk
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China
| | - Tsz-Ping Lam
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China
| | - Alec L H Hung
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China
| | - Jack C Y Cheng
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China
| | - Yong Qiu
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China; Spine Surgery, Nanjing Drum Tower Hospital, Nanjing University, Nanjing, China
| | - Ralph Müller
- Institute for Biomechanics, ETH, Zurich, Zurich, Switzerland
| | - Patrik Christen
- Institute for Biomechanics, ETH, Zurich, Zurich, Switzerland; Institute for Information Systems, FHNW University of Applied Sciences and Arts Northwestern Switzerland, Olten, Switzerland
| | - Wayne Y W Lee
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China.
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Skorseth P, Segovia N, Hastings K, Kraus E. Prevalence of Female Athlete Triad Risk Factors and Iron Supplementation Among High School Distance Runners: Results From a Triad Risk Screening Tool. Orthop J Sports Med 2020; 8:2325967120959725. [PMID: 33195716 PMCID: PMC7605010 DOI: 10.1177/2325967120959725] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 04/20/2020] [Indexed: 01/08/2023] Open
Abstract
Background: Investigations of the female athlete triad (Triad) in high school athletes have found that 36% had low energy availability, 54% had menstrual abnormalities, and 16% had low bone mineral density (BMD). Limited data are available showing the prevalence of these risk factors in high school distance runners or regarding best practice on screening for the Triad in the adolescent population. Purpose: To (1) evaluate the prevalence of Triad risk factors and iron supplementation in high school distance runners and (2) pilot a screening tool for Triad risk score. Study Design: Descriptive epidemiology study. Methods: The study population included female high school athletes who participated in cross-country/track. Participants completed a survey including questions regarding dietary habits, menstrual history, and bone stress injury (BSI) history. They then underwent evaluation of 25-hydroxyvitamin D, free triiodothyronine (T3), and dual-energy x-ray absorptiometry scan to measure body fat and BMD through use of age-, sex-, and ethnicity-matched Z scores. Triad scores were calculated. Relationships were analyzed using Spearman correlation coefficient. Results: There were 38 study participants (mean age, 16.9 years). Average body mass index was 19.8 kg/m2. Disordered eating or eating disorders were reported in 76.3% of runners; in addition, 23.7% reported delayed menarche, 45.9% had a history of amenorrhea or oligomenorrhea, 42.1% had low BMD (Z score < –1.0), and 15.8% reported prior BSI. Low free T3 was significantly associated with higher Triad risk scores (rS = –0.36; P = .028). More than 42% of athletes were supplementing iron. Conclusion: The prevalence of Triad risk factors in high school distance runners was high. Free T3 was inversely associated with Triad score, which may serve as an indicator of low energy availability. Nearly half of the athletes were using iron supplementation.
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Affiliation(s)
- Paige Skorseth
- Division of Pediatric Orthopedic Surgery and Sports Medicine, Department of Orthopedic Surgery, Stanford University School of Medicine, Stanford, California, USA.,University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Nicole Segovia
- Division of Pediatric Orthopedic Surgery and Sports Medicine, Department of Orthopedic Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Katherine Hastings
- Division of Pediatric Orthopedic Surgery and Sports Medicine, Department of Orthopedic Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Emily Kraus
- Division of Pediatric Orthopedic Surgery and Sports Medicine, Department of Orthopedic Surgery, Stanford University School of Medicine, Stanford, California, USA
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Abstract
Adolescence is a critical time for the acquisition of peak bone mass. There are modifiable factors that may influence bone health in an adolescent. For those at risk for bone fragility, initial management includes optimization of calcium and vitamin D, weight-bearing exercise, and maintenance of a normal body weight. In certain scenarios, bisphosphonate treatment is indicated, as is reviewed. How hormonal contraceptives affect bone mineral density is unclear, but in patients with risk factors or known bone fragility, prescribers should consider their skeletal effects. Some conditions, including restrictive eating disorders and primary ovarian insufficiency, warrant long-term monitoring of bone health.
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Geometric and "True" Densitometric Characteristics of Bones in Athletes with Stress Fracture and Menstrual Disturbances: A Systematic Review. Sports Med 2020; 49:1059-1078. [PMID: 31041601 DOI: 10.1007/s40279-019-01109-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Stress fractures can lead to short- and long-term consequences, impacting participation in sport and general health. Recognizing which skeletal characteristics render bones susceptible to stress fracture may aid stress-fracture prevention. Menstrual disturbances among exercising women are a known risk factor for stress fracture; therefore, assessing skeletal commonalities between women with stress fractures and women with menstrual disturbances may increase our understanding of why menstrual disturbances put athletes at greater risk for stress fracture. Three-dimensional (3D) bone imaging tools provide detailed information about volumetric bone mineral density (vBMD) and bone structure that cannot be obtained using traditional two-dimensional (2D) techniques. OBJECTIVES This systematic review serves to: (1) evaluate the current literature available on vBMD, bone geometry, and bone structure in exercising women with menstrual disturbances and exercising women with stress fractures, and (2) assess the common skeletal characteristics between both conditions. Our aim is to reveal bone properties beyond 2D areal BMD that may indicate increased susceptibility to stress fracture among exercising women with menstrual disturbances. SEARCH METHODS A search of the PubMed/Medline database was completed in May 2018. ELIGIBILITY CRITERIA Eligible articles included those that reported vBMD, bone geometry, or bone structure obtained from 3D imaging techniques or estimated from 2D imaging techniques. Only studies conducted in premenopausal exercising women and girls who had a stress fracture, a menstrual disturbance, or both were included. RESULTS Twenty-four articles met the inclusion criteria. Bone area and cortical thickness at the tibia were identified as altered both in women with menstrual disturbances and in women with stress fractures; however, there was inconsistency in the results observed for all bone parameters. The majority of skeletal parameters of the lower extremities were not significantly different between exercising women with and without stress fractures and between those with and without menstrual disturbances. DISCUSSION Most studies were moderate or low quality based on study design, and only one article combined both conditions to explore vBMD and bone geometry in athletes with menstrual disturbances and a history of stress fracture. These findings highlight the need for more skeletal research on the intersection of these health conditions in exercising women. The lack of observed differences in skeletal parameters suggests that risk factors other than bone geometry and structure may be the primary causes of stress fracture in these women.
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Singhal V, Reyes KC, Pfister B, Ackerman K, Slattery M, Cooper K, Toth A, Gupta N, Goldstein M, Eddy K, Misra M. Bone accrual in oligo-amenorrheic athletes, eumenorrheic athletes and non-athletes. Bone 2019; 120:305-313. [PMID: 29758361 PMCID: PMC6636860 DOI: 10.1016/j.bone.2018.05.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 04/26/2018] [Accepted: 05/09/2018] [Indexed: 11/23/2022]
Abstract
BACKGROUND Mechanical loading improves bone mineral density (BMD) and strength while decreasing fracture risk. Cross-sectional studies show that exercise advantage is lost in oligo-amenorrheic athletes (OA). Longitudinal studies examining the opposing effects of exercise and hypogonadism on bone are lacking in adolescents/young adults. OBJECTIVE Evaluate differences in bone accrual over 12 months in OA, eumenorrheic athletes (EA) and non-athletes (NA). We hypothesized that bone accrual would be lower in OA than EA and NA, with differences most pronounced at non-weight bearing trabecular sites. METHODS 27 OA, 29 EA, and 22 NA, 14-25 years old, completed 12-months of the prospective study. Athletes were weight-bearing endurance athletes. Subjects were assessed for areal BMD and bone mineral content (BMC) using DXA at the femoral neck, total hip, lumbar spine and whole body (WB). Failure load (a strength estimate) at the distal radius and tibia was assessed using microfinite element analysis of data obtained via high resolution peripheral quantitative computed tomography (HRpQCT). The primary analysis was a comparison of changes in areal BMD, BMC, and failure load across groups over 12-months at the respective sites. RESULTS Groups did not differ for baseline age, height or BMI. Percent body fat was lower in both OA and EA compared to NA. OA attained menarche later than EA and NA. Over the follow-up period, OA gained 1.9 ± 2.7 kg of weight compared to 0.5 ± 2.4 kg and 0.8 ± 2.3 kg in EA and NA respectively (p = 0.09); 39% of OA resumed menses. Changes in BMD, BMD Z-scores, and tibial failure load over 12-months did not differ among groups. At follow up, EA had higher femoral neck, hip and WB BMD Z-scores than NA, and higher hip BMD Z-scores than OA (p < 0.05) after adjusting for covariates. At follow-up, radial failure load was lower in OA vs. NA, and tibial failure load lower in OA and NA vs. EA (p ≤ 0.04 for all). Change in weight and fat mass were associated with changes in BMD measures at multiple sites. CONCLUSION Despite weight gain and menses recovery in many OA during follow-up, residual deficits persist without catch-up raising concerns for suboptimal peak bone mass acquisition.
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Affiliation(s)
- Vibha Singhal
- Neuroendocrine Unit, Massachusetts General Hospital, Harvard Medical School, United States; Pediatric Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, United States.
| | - Karen Campoverde Reyes
- Neuroendocrine Unit, Massachusetts General Hospital, Harvard Medical School, United States
| | - Brooke Pfister
- Neuroendocrine Unit, Massachusetts General Hospital, Harvard Medical School, United States
| | - Kathryn Ackerman
- Neuroendocrine Unit, Massachusetts General Hospital, Harvard Medical School, United States; Division of Sports Medicine, Boston Children's Hospital, Harvard Medical School, United States
| | - Meghan Slattery
- Neuroendocrine Unit, Massachusetts General Hospital, Harvard Medical School, United States
| | - Katherine Cooper
- Neuroendocrine Unit, Massachusetts General Hospital, Harvard Medical School, United States
| | - Alexander Toth
- Neuroendocrine Unit, Massachusetts General Hospital, Harvard Medical School, United States
| | - Nupur Gupta
- Division of Adolescent and Young Adult Medicine, Massachusetts General Hospital, Harvard Medical School, United States
| | - Mark Goldstein
- Division of Adolescent and Young Adult Medicine, Massachusetts General Hospital, Harvard Medical School, United States
| | - Kamryn Eddy
- Eating Disorders Clinical and Research Program, Massachusetts General Hospital, Harvard Medical School, United States
| | - Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital, Harvard Medical School, United States; Pediatric Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, United States
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Petkus DL, Murray-Kolb LE, De Souza MJ. The Unexplored Crossroads of the Female Athlete Triad and Iron Deficiency: A Narrative Review. Sports Med 2018; 47:1721-1737. [PMID: 28290159 DOI: 10.1007/s40279-017-0706-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Despite the severity and prevalence of iron deficiency in exercising women, few published reports have explored how iron deficiency interacts with another prevalent and severe condition in exercising women: the 'female athlete triad.' This review aims to describe how iron deficiency may interact with each component of the female athlete triad, that is, energy status, reproductive function, and bone health. The effects of iron deficiency on energy status are discussed in regards to thyroid function, metabolic fuel availability, eating behaviors, and energy expenditure. The interactions between iron deficiency and reproductive function are explored by discussing the potentially impaired fertility and hyperprolactinemia due to iron deficiency and the alterations in iron metabolism due to menstrual blood loss and estrogen exposure. The interaction of iron deficiency with bone health may occur via dysregulation of the growth hormone/insulin-like growth factor-1 axis, hypoxia, and hypothyroidism. Based on these discussions, several future directions for research are presented.
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Affiliation(s)
- Dylan L Petkus
- Department of Kinesiology, The Pennsylvania State University, 104 Noll Laboratory, University Park, PA, 16802, USA
| | - Laura E Murray-Kolb
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Mary Jane De Souza
- Department of Kinesiology, The Pennsylvania State University, 104 Noll Laboratory, University Park, PA, 16802, USA.
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Amenorrhoea in adolescent female athletes. THE LANCET CHILD & ADOLESCENT HEALTH 2018; 2:677-688. [DOI: 10.1016/s2352-4642(18)30145-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/28/2018] [Accepted: 05/02/2018] [Indexed: 12/16/2022]
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Kandemir N, Slattery M, Ackerman KE, Tulsiani S, Bose A, Singhal V, Baskaran C, Ebrahimi S, Goldstein M, Eddy K, Klibanski A, Misra M. Bone Parameters in Anorexia Nervosa and Athletic Amenorrhea: Comparison of Two Hypothalamic Amenorrhea States. J Clin Endocrinol Metab 2018; 103:2392-2402. [PMID: 29659886 PMCID: PMC6456997 DOI: 10.1210/jc.2018-00338] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 04/02/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVE We have reported low bone mineral density (BMD), impaired bone structure, and increased fracture risk in participants with anorexia nervosa (AN) and normal-weight oligoamenorrheic athletes (OAs). However, data directly comparing compartment-specific bone parameters in participants with AN, OAs, and controls are lacking. DESIGN A total of 468 female participants 14 to 21.9 years old were included: 269 with AN, 104 OAs, and 95 normal-weight eumenorrheic controls. Dual-energy x-ray absorptiometry was used to assess areal BMD (aBMD) of the whole body less head (WBLH), spine, and hip. High-resolution peripheral quantitative computed tomography was used to assess volumetric BMD (vBMD), bone geometry, and structure at the non-weight-bearing distal radius and weight-bearing distal tibia. RESULTS Participants with AN had lower WBLH and hip aBMD z scores than OAs and controls (P < 0.0001). Participants with AN and OAs had lower spine aBMD z scores than controls (P < 0.01). At the radius, total and cortical vBMD, percentage cortical area, and thickness were lower in the AN and OA groups than in controls (P ≤ 0.04); trabecular vBMD was lower in participants with AN than controls. At the tibia, participants with AN had lower measures for most parameters compared with OAs and controls (P < 0.05); OAs had lower cortical vBMD than controls (P = 0.002). Participants with AN and OAs had higher fracture rates than controls. Stress fracture prevalence was highest in OAs (P < 0.0001); nonstress fracture prevalence was highest in participants with AN (P < 0.05). CONCLUSION AN is deleterious to bone at all sites and both bone compartments. A high stress fracture rate in OAs, who have comparable WBLH and hip aBMD measures to controls, indicates that BMD in these women may need to be even higher to avoid fractures.
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Affiliation(s)
- Nurgun Kandemir
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Pediatric Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Meghan Slattery
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Kathryn E Ackerman
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Divisions of Sports Medicine and Endocrinology, Boston Children’s Hospital, Boston, Massachusetts
| | - Shreya Tulsiani
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Amita Bose
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Vibha Singhal
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Pediatric Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Charumathi Baskaran
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Pediatric Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Seda Ebrahimi
- Center of Eating Disorders Management, Cambridge, Massachusetts
| | - Mark Goldstein
- Division of Adolescent Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Kamryn Eddy
- Eating Disorders Clinical and Research Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Anne Klibanski
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Pediatric Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Correspondence and Reprint Requests: Madhusmita Misra, MD, MPH, Massachusetts General Hospital, BUL 457 B, 55 Fruit Street, Boston, Massachusetts 02114. E-mail:
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Southmayd EA, Hellmers AC, De Souza MJ. Food Versus Pharmacy: Assessment of Nutritional and Pharmacological Strategies to Improve Bone Health in Energy-Deficient Exercising Women. Curr Osteoporos Rep 2017; 15:459-472. [PMID: 28831686 DOI: 10.1007/s11914-017-0393-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE OF REVIEW The review aims to summarize our current knowledge surrounding treatment strategies aimed at recovery of bone mass in energy-deficient women suffering from the Female Athlete Triad. RECENT FINDINGS The independent and interactive contributions of energy status versus estrogen status on bone density, geometry, and strength have recently been reported, highlighting the importance of addressing both energy and estrogen in treatment strategies for bone health. This is supported by reports that have identified energy-related features (low body weight and BMI) and estrogen-related features (late age of menarche, oligo/amenorrhea) to be significant risk factors for low bone mineral density and bone stress injury in female athletes and exercising women. Nutritional therapy is the recommended first line of treatment to recover bone mass in energy-deficient female athletes and exercising women. If nutritional therapy fails after 12 months or if fractures or significant worsening in BMD occurs, pharmacological therapy may be considered in the form of transdermal estradiol with cyclic oral progestin (not COC).
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Affiliation(s)
- Emily A Southmayd
- Women's Health and Exercise Laboratory, Department of Kinesiology, College of Health and Human Development, The Pennsylvania State University, University Park, PA, USA
| | - Adelaide C Hellmers
- Women's Health and Exercise Laboratory, Department of Kinesiology, College of Health and Human Development, The Pennsylvania State University, University Park, PA, USA
| | - Mary Jane De Souza
- Women's Health and Exercise Laboratory, 104 Noll Laboratory, Department of Kinesiology and Physiology, College of Health and Human Development, The Pennsylvania State University, University Park, PA, 16802, USA.
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Papageorgiou M, Dolan E, Elliott-Sale KJ, Sale C. Reduced energy availability: implications for bone health in physically active populations. Eur J Nutr 2017; 57:847-859. [PMID: 28721562 PMCID: PMC5861178 DOI: 10.1007/s00394-017-1498-8] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 07/03/2017] [Indexed: 01/17/2023]
Abstract
Purpose The present review critically evaluates existing literature on the effects of short- and long-term low energy availability (EA) on bone metabolism and health in physically active individuals. Methods We reviewed the literature on the short-term effects of low EA on markers of bone metabolism and the long-term effects of low EA on outcomes relating to bone health (bone mass, microarchitecture and strength, bone metabolic markers and stress fracture injury risk) in physically active individuals. Results Available evidence indicates that short-term low EA may increase markers of bone resorption and decrease markers of bone formation in physically active women. Bone metabolic marker responses to low EA are less well known in physically active men. Cross-sectional studies investigating the effects of long-term low EA suggest that physically active individuals who have low EA present with lower bone mass, altered bone metabolism (favouring bone resorption), reduced bone strength and increased risk for stress fracture injuries. Conclusions Reduced EA has a negative influence on bone in both the short- and long-term, and every effort should be made to reduce its occurrence in physically active individuals. Future interventions are needed to explore the effects of long-term reduced EA on bone health outcomes, while short-term low EA studies are also required to give insight into the pathophysiology of bone alterations.
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Affiliation(s)
- Maria Papageorgiou
- Musculoskeletal Physiology Research Group, Sport, Health and Performance Enhancement Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS UK
| | - Eimear Dolan
- Applied Physiology and Nutrition Research Group, University of Sao Paulo, São Paulo, Brazil
| | - Kirsty J. Elliott-Sale
- Musculoskeletal Physiology Research Group, Sport, Health and Performance Enhancement Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS UK
| | - Craig Sale
- Musculoskeletal Physiology Research Group, Sport, Health and Performance Enhancement Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS UK
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Gordon CM, Ackerman KE, Berga SL, Kaplan JR, Mastorakos G, Misra M, Murad MH, Santoro NF, Warren MP. Functional Hypothalamic Amenorrhea: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab 2017; 102:1413-1439. [PMID: 28368518 DOI: 10.1210/jc.2017-00131] [Citation(s) in RCA: 226] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 02/23/2017] [Indexed: 02/04/2023]
Abstract
COSPONSORING ASSOCIATIONS The American Society for Reproductive Medicine, the European Society of Endocrinology, and the Pediatric Endocrine Society. This guideline was funded by the Endocrine Society. OBJECTIVE To formulate clinical practice guidelines for the diagnosis and treatment of functional hypothalamic amenorrhea (FHA). PARTICIPANTS The participants include an Endocrine Society-appointed task force of eight experts, a methodologist, and a medical writer. EVIDENCE This evidence-based guideline was developed using the Grading of Recommendations, Assessment, Development, and Evaluation approach to describe the strength of recommendations and the quality of evidence. The task force commissioned two systematic reviews and used the best available evidence from other published systematic reviews and individual studies. CONSENSUS PROCESS One group meeting, several conference calls, and e-mail communications enabled consensus. Endocrine Society committees and members and cosponsoring organizations reviewed and commented on preliminary drafts of this guideline. CONCLUSIONS FHA is a form of chronic anovulation, not due to identifiable organic causes, but often associated with stress, weight loss, excessive exercise, or a combination thereof. Investigations should include assessment of systemic and endocrinologic etiologies, as FHA is a diagnosis of exclusion. A multidisciplinary treatment approach is necessary, including medical, dietary, and mental health support. Medical complications include, among others, bone loss and infertility, and appropriate therapies are under debate and investigation.
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Affiliation(s)
| | - Kathryn E Ackerman
- Boston Children's Hospital, Boston, Massachusetts 02115
- Massachusetts General Hospital, Boston, Massachusetts 02114
| | - Sarah L Berga
- Wake Forest School of Medicine, Winston-Salem, North Carolina 27157
| | - Jay R Kaplan
- Wake Forest School of Medicine, Winston-Salem, North Carolina 27157
| | - George Mastorakos
- Areteio Hospital, Medical School, National and Capodistrian University of Athens, Athens, Greece 10674
| | | | - M Hassan Murad
- Division of Preventive Medicine, Mayo Clinic, Rochester, Minnesota 55905
| | | | - Michelle P Warren
- Center for Menopause, Hormonal Disorders, and Women's Health, Columbia University Medical Center, New York, New York 10021
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Gifford RM, Reynolds RM, Greeves J, Anderson RA, Woods DR. Reproductive dysfunction and associated pathology in women undergoing military training. J ROY ARMY MED CORPS 2017; 163:301-310. [DOI: 10.1136/jramc-2016-000727] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/15/2016] [Accepted: 01/27/2017] [Indexed: 01/07/2023]
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Maïmoun L, Paris F, Coste O, Sultan C. [Intensive training and menstrual disorders in young female: Impact on bone mass]. ACTA ACUST UNITED AC 2016; 44:659-663. [PMID: 27751748 DOI: 10.1016/j.gyobfe.2016.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 09/09/2016] [Indexed: 10/20/2022]
Abstract
Participation in recreational physical activity is widely acknowledged to provide significant health benefits. Conversely, intense training imposes several constraints, such as intermittent or chronic metabolic and psychogenic training stressors and maintenance of very low body fat to maximize performance. Adolescent and adult athletic women are therefore at risk of overtraining and/or poor dietary intake, which may have several consequences for endocrine function particularly on hypothalamic-pituitary-gonadal axis. Female athletes, particularly those participating in sports needing leanness or low body weight, present a high prevalence of menstrual disorders with clinical manifestations ranging from delayed menarche, oligomenorrhea to primary and secondary amenorrhea. A high degree of variability according to the type of sport and the intensity of the practice is however observed. Exercise-related reproductive dysfunction may have some consequences for growth velocity and peak bone mass acquisition during adolescence and bone pathologies in adults. Recent findings highlight the endocrine role of adipose tissue and energy balance in the regulation of homeostasis and reproductive function. A better understanding of the mechanisms whereby intense training affects the endocrine systems may orient research to develop innovative strategies probably based on individualized nutritional approach to improve the medical care of these female athletes and protect their reproductive function.
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Affiliation(s)
- L Maïmoun
- Service de médecine nucléaire, hôpital Lapeyronie, université de Montpellier 1 (UM1), CHRU de Montpellier, 34295 Montpellier, France; PhyMedExp, University of Montpellier, Inserm U1046, CNRS UMR 9214, 34295 Montpellier cedex 5, France.
| | - F Paris
- Unité d'endocrinologie et gynécologie pédiatrique, département de pédiatrie, hôpital A.-de-Villeneuve, UMI, CHRU de Montpellier, 34295 Montpellier, France
| | - O Coste
- Direction régionale de la jeunesse, des sports et de la cohésion sociale Languedoc Roussillon/Midi-Pyrénées, France
| | - C Sultan
- Unité d'endocrinologie et gynécologie pédiatrique, département de pédiatrie, hôpital A.-de-Villeneuve, UMI, CHRU de Montpellier, 34295 Montpellier, France
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Abstract
The number of girls participating in sports has increased significantly since the introduction of Title XI in 1972. As a result, more girls have been able to experience the social, educational, and health-related benefits of sports participation. However, there are risks associated with sports participation, including the female athlete triad. The triad was originally recognized as the interrelationship of amenorrhea, osteoporosis, and disordered eating, but our understanding has evolved to recognize that each of the components of the triad exists on a spectrum from optimal health to disease. The triad occurs when energy intake does not adequately compensate for exercise-related energy expenditure, leading to adverse effects on reproductive, bone, and cardiovascular health. Athletes can present with a single component or any combination of the components. The triad can have a more significant effect on the health of adolescent athletes than on adults because adolescence is a critical time for bone mass accumulation. This report outlines the current state of knowledge on the epidemiology, diagnosis, and treatment of the triad conditions.
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Vaitkeviciute D, Lätt E, Mäestu J, Jürimäe T, Saar M, Purge P, Maasalu K, Jürimäe J. Longitudinal associations between bone and adipose tissue biochemical markers with bone mineralization in boys during puberty. BMC Pediatr 2016; 16:102. [PMID: 27439435 PMCID: PMC4955269 DOI: 10.1186/s12887-016-0647-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 07/15/2016] [Indexed: 08/30/2023] Open
Abstract
Background We investigated longitudinal relationships between the biochemical markers of bone and adipose tissue with bone mineral content (BMC), bone mineral density (BMD), moderate-to-vigorous physical activity (MVPA) and sedentary time (SED) in pubertal boys. Methods Ninety-six boys (11.9 ± 0.6 years old) were measured at baseline, after 12 and 24 months. Body composition (fat mass [FM], lean body mass [LBM]), and whole body (WB), lumbar spine (LS) and femoral neck (FN) BMD and BMC were assessed. Additionally, serum leptin, adiponectin, osteocalcin (OC) and C-terminal telopeptide of type I collagen (CTX) were measured. Results OC had a strong longitudinal inverse effect on changes in WB_BMD (p < 0.001) and LS_BMD (p = 0.021), while CTX had an inverse effect only on changes in FN_BMD (p = 0.011). Leptin had an inverse effect on changes in WB_BMC/WB_BMD (p = 0.001), FN_BMD (p = 0.002) and LS_BMD (p = 0.001). MVPA showed a longitudinal inverse effect on changes in leptin (p = 0.030), however no longitudinal effect of SED to biochemical markers of bone and adipose tissue was found. Conclusions Bone metabolism markers have negative effect on bone mineral accrual during puberty. Increases in MVPA affect leptin, suggesting a positive link of MVPA through leptin metabolism on increases in bone mineralization during puberty.
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Affiliation(s)
- Donvina Vaitkeviciute
- Institute of Sport Sciences and Physiotherapy, Centre of Behavioural, Social and Health Science, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Evelin Lätt
- Institute of Sport Sciences and Physiotherapy, Centre of Behavioural, Social and Health Science, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Jarek Mäestu
- Institute of Sport Sciences and Physiotherapy, Centre of Behavioural, Social and Health Science, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Toivo Jürimäe
- Institute of Sport Sciences and Physiotherapy, Centre of Behavioural, Social and Health Science, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Meeli Saar
- Institute of Sport Sciences and Physiotherapy, Centre of Behavioural, Social and Health Science, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Priit Purge
- Institute of Sport Sciences and Physiotherapy, Centre of Behavioural, Social and Health Science, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Katre Maasalu
- Institute of Clinical Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Jaak Jürimäe
- Institute of Sport Sciences and Physiotherapy, Centre of Behavioural, Social and Health Science, Faculty of Medicine, University of Tartu, Tartu, Estonia. .,Institute of Sport Pedagogy and Coaching Sciences, Centre of Behavioral, Social and Health Sciences, University of Tartu, 5 Jakobi Street, 51014, Tartu, Estonia.
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Mallinson RJ, Williams NI, Gibbs JC, Koehler K, Allaway HCM, Southmayd E, De Souza MJ. Current and past menstrual status is an important determinant of femoral neck geometry in exercising women. Bone 2016; 88:101-112. [PMID: 27129885 DOI: 10.1016/j.bone.2016.01.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 12/19/2015] [Accepted: 01/11/2016] [Indexed: 11/21/2022]
Abstract
UNLABELLED Menstrual status, both past and current, has been established as an important determinant of bone mineral density (BMD) in young exercising women. However, little is known regarding the association between the cumulative effect of menstrual status and indices of bone health beyond BMD, such as bone geometry and estimated bone strength. PURPOSE This study explores the association between cumulative menstrual status and indices of bone health assessed using dual-energy x-ray absorptiometry (DXA), including femoral neck geometry and strength and areal BMD (aBMD), in exercising women. METHODS 101 exercising women (22.0±0.4years, BMI 21.0±0.2kg/m(2), 520±40min/week of self-reported exercise) participated in this cross-sectional study. Women were divided into three groups as follows based on their self-reported current and past menstrual status: 1) current and past regular menstrual cycles (C+P-R) (n=23), 2) current and past irregular menstrual cycles (C+P-IR) (n=56), 3) and current or past irregular cycles (C/P-RIR) (n=22). Current menstrual status was confirmed using daily urinary metabolites of reproductive hormones. DXA was used to assess estimates of femoral neck geometry and strength from hip strength analysis (HSA), aBMD, and body composition. Cross-sectional moment of inertia (CSMI), cross-sectional area (CSA), strength index (SI), diameter, and section modulus (Z) were calculated at the femoral neck. Low CSMI, CSA, SI, diameter, and Z were operationally defined as values below the median. Areal BMD (g/cm(2)) and Z-scores were determined at the lumbar spine, femoral neck, and total hip. Low BMD was defined as a Z-score<-1.0. Chi-square tests and multivariable logistic regression were performed to compare the prevalence and determine the odds, respectively, of low bone geometry, strength, and aBMD among groups. RESULTS Cumulative menstrual status was identified as a significant predictor of low femoral neck CSMI (p=0.005), CSA (p≤0.024), and diameter (p=0.042) after controlling for confounding variables. C+P-IR or C/P-RIR were four to eight times more likely to exhibit low femoral neck CSMI or CSA when compared with C+P-R. Lumbar spine aBMD and Z-score were lower in C+P-IR when compared with C+P-R (p≤0.003). A significant association between menstrual group and low aBMD was observed at the lumbar spine (p=0.006) but not at the femoral neck or total hip (p>0.05). However, after controlling for confounding variables, cumulative menstrual status was not a significant predictor of low aBMD. CONCLUSION In exercising women, the cumulative effect of current and past menstrual irregularity appears to be an important predictor of lower estimates of femoral neck geometry, as observed by smaller CSMI and CSA, which may serve as an another means, beyond BMD, by which menstrual irregularity compromises bone strength. As such, evaluation of both current and past menstrual status is recommended to determine potential risk for relatively small bone geometry at the femoral neck.
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Affiliation(s)
- Rebecca J Mallinson
- Pennsylvania State University, Department of Kinesiology, Noll Laboratory, University Park, PA 16802, United States.
| | - Nancy I Williams
- Pennsylvania State University, Department of Kinesiology, Noll Laboratory, University Park, PA 16802, United States.
| | - Jenna C Gibbs
- Pennsylvania State University, Department of Kinesiology, Noll Laboratory, University Park, PA 16802, United States; University of Waterloo, Department of Kinesiology, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada.
| | - Karsten Koehler
- Pennsylvania State University, Department of Kinesiology, Noll Laboratory, University Park, PA 16802, United States; University of Nebraska, Department of Nutrition and Health Sciences, Lincoln, NE 68583, United States.
| | - Heather C M Allaway
- Pennsylvania State University, Department of Kinesiology, Noll Laboratory, University Park, PA 16802, United States.
| | - Emily Southmayd
- Pennsylvania State University, Department of Kinesiology, Noll Laboratory, University Park, PA 16802, United States.
| | - Mary Jane De Souza
- Pennsylvania State University, Department of Kinesiology, Noll Laboratory, University Park, PA 16802, United States.
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Vaitkeviciute D, Lätt E, Mäestu J, Jürimäe T, Saar M, Purge P, Maasalu K, Jürimäe J. Adipocytokines and bone metabolism markers in relation to bone mineral values in early pubertal boys with different physical activity. J Pediatr Endocrinol Metab 2016; 29:723-9. [PMID: 27054594 DOI: 10.1515/jpem-2015-0282] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 01/15/2016] [Indexed: 11/15/2022]
Abstract
BACKGROUND We aimed to examine the associations of adipocytokines and circulating bone metabolism markers with bone mineral parameters in early pubertal boys with different physical activity level. METHODS Eighty-six early pubertal boys were divided into active and non-active boys according to the accumulated moderate-to-vigorous physical activity (MVPA) level. Body composition and bone mineral parameters were assessed and testosterone, leptin, adiponectin, osteocalcin (OC), and C-terminal telopeptide of type I collagen (CTX) were measured. RESULTS Active subjects had significantly lower (p<0.05) body mass, body mass index (BMI), fat mass (FM), leptin, and sedentary time values, while non-active subjects had lower (p<0.05) vigorous physical activity level and femoral neck bone mineral density (FN-BMD). OC contributed to the models in physically active group and explained 6.6% and 9.7% of variance in whole body (WB) [F(5,44)=10.847; p<0.001] and lumbar spine bone mineral content (LS-BMC) [F(5,44)=4.158; p=0.004], respectively. No other biochemical parameters were found to be related to bone mineral parameters in either the active or non-active group. CONCLUSIONS Bone metabolism markers were positively correlated with bone mineral values only in active pubertal boys. Leptin and adiponectin were not related to bone mineral parameters in active and non-active pubertal boys.
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Ackerman KE, Cano Sokoloff N, DE Nardo Maffazioli G, Clarke HM, Lee H, Misra M. Fractures in Relation to Menstrual Status and Bone Parameters in Young Athletes. Med Sci Sports Exerc 2016; 47:1577-86. [PMID: 25397605 DOI: 10.1249/mss.0000000000000574] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION This study was aimed to compare fracture prevalence in oligoamenorrheic athletes (AA), eumenorrheic athletes (EA), and nonathletes (NA) and determine relationships with bone density, structure, and strength estimates. METHODS One hundred seventy-five females (100 AA, 35 EA, and 40 NA) 14-25 yr old were studied. Lifetime fracture history was obtained through participant interviews. Areal bone mineral density (BMD) was assessed by DXA at the spine, hip, and whole body (WB). Bone structure was assessed by HRpQCT at the radius and tibia, and strength by finite element analysis. RESULTS AA, EA, and NA did not differ in age, sexual maturity, or height. AA had lower BMI, and older menarchal age than EA and NA (P ≤ 0.001). Bone mineral density Z-scores were lower in AA versus EA at the total hip, femoral neck, spine, and whole body (P ≤ 0.001). Lifetime fracture risk was higher in AA than EA and NA (47%, 25.7%, 12.5%; P ≤ 0.001), largely driven by stress fractures in AA versus EA and NA (32% vs 5.9% vs 0%). In AA, those who fractured had lower lumbar and WB BMD Z-scores, volumetric BMD (vBMD) of outer trabecular region in radius and tibia, and trabecular thickness of the radius (P ≤ 0.05). In AA, those who had two or more stress fractures had lower lumbar and WB BMD Z-scores, total cross-sectional area, trabecular vBMD, stiffness, and failure load at radius; and lower stiffness and failure load at tibia versus those with fewer than two stress fractures (P ≤ 0.05). CONCLUSION Weight-bearing athletic activity increases BMD but may increase stress fracture risk in those with menstrual dysfunction. Bone microarchitecture and strength differences are more pronounced in AA with multiple stress fractures. This is the first study to examine fractures in relation to bone structure in adolescent female athletes.
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Affiliation(s)
- Kathryn E Ackerman
- 1Neuroendocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA; 2Division of Sports Medicine, Department of Orthopedics, Boston Children's Hospital and Harvard Medical School, Boston, MA; 3Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA; and 4Pediatric Endocrine Unit, Department of Pediatrics, Massachusetts General Hospital for Children and Harvard Medical School, Boston, MA
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Stefani L, Galanti G, Lorini S, Beni G, Dei M, Maffulli N. Female athletes and menstrual disorders: a pilot study. Muscles Ligaments Tendons J 2016; 6:183-187. [PMID: 27900290 PMCID: PMC5115248 DOI: 10.11138/mltj/2016.6.2.183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND There is a greater incidence of menstrual disorders in female athletes than in their sedentary counterparts. The menstrual disorder is reported in female athletes suffering from athletic triad syndrome, while few data in those free of this syndrome are available. The study aims to ascertain the presence of menstrual disorders and the eventual relationship with myocardial performance in female athletes practicing different sports. METHODS A sample of 64 subjects aged 18.5±2 was selected and divided into 3 groups (37 subjects practicing rhythmic gymnastics, 11 swimmers, and 16 volleyball players). All underwent echocardiography, biompendance analysis, and answered a questionnaire. RESULTS All anthropometrics parameters were normal. Few athletes reported menstrual disorders. No association between the presence of menstrual disorders and BMI. All echo results were within the normal range. Cardiac Mass Index (CMI) was normal for all athletes despite in swimmers significantly higher values (90.64±14.9 g/m2) compared to the volleyball players (78.25±14.0 g/m2; p<.04) and rhythmic gymnasts (77.89±13.4 g/m2; p<.009) were found. CONCLUSIONS Despite menstrual disorders are represented among female athletes, the eventual relationship with the sport practiced is not so evident. Questionnaire should be used to identify menstrual disorders in non-elite athletically active females.
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Affiliation(s)
- Laura Stefani
- Sports Medicine Center, Clinical and Experimental Department, Florence, Italy
| | - Giorgio Galanti
- Sports Medicine Center, Clinical and Experimental Department, Florence, Italy
| | - Silvia Lorini
- Sports Medicine Center, Clinical and Experimental Department, Florence, Italy
| | - Giada Beni
- Child and Woman Health Department, University of Florence, Italy
| | - Metella Dei
- Child and Woman Health Department, University of Florence, Italy
| | - Nicola Maffulli
- Department of Musculoskeletal Disorders Faculty of Medicine, Surgery and Dentistry, University of Salerno, Salerno, Italy; Centre for Sports and Exercise Medicine Barts and London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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Misra M, Golden NH, Katzman DK. State of the art systematic review of bone disease in anorexia nervosa. Int J Eat Disord 2016; 49:276-92. [PMID: 26311400 PMCID: PMC4769683 DOI: 10.1002/eat.22451] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/23/2015] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Low bone mineral density (BMD) is a known consequence of anorexia nervosa (AN) and is particularly concerning during adolescence, a critical time for bone accrual. A comprehensive synthesis of available data regarding impaired bone health, its determinants, and associated management strategies in AN is currently lacking. This systematic review aims to synthesize information from key physiologic and prospective studies and trials, and provide a thorough understanding of impaired bone health in AN and its management. METHOD Search terms included "anorexia nervosa" AND "bone density" for the period 1995-2015, limited to articles in English. Papers were screened manually based on journal impact factor, sample size, age of participants, and inclusion of a control group. When necessary, we included seminal papers published before 1995. RESULTS AN leads to low BMD, impaired bone quality and increased fracture risk. Important determinants are low lean mass, hypogonadism, IGF-1 deficiency, and alterations in other hormones that impact bone health. Weight gain and menses restoration are critical for improving bone outcomes in AN. Physiologic estrogen replacement as the transdermal patch was shown to increase bone accrual in one study in adolescent females with AN; however, residual deficits persist. Bisphosphonates are potentially useful in adults with AN. DISCUSSION To date, evidence suggests that the safest and most effective strategy to improve bone health in AN is normalization of weight with restoration of menses. Pharmacotherapies that show promise include physiologic estradiol replacement (as the transdermal estradiol patch), and in adults, bisphosphonates. Further studies are necessary to determine the best strategies to normalize BMD in AN.
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Affiliation(s)
- Madhusmita Misra
- Division of Pediatric Endocrinology and the Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts,Correspondence to: Madhusmita Misra, MD, MPH, Division of Pediatric Endocrinology and the Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts.
| | - Neville H. Golden
- Division of Adolescent Medicine, Stanford University School of Medicine, Palo Alto, California
| | - Debra K. Katzman
- Division of Adolescent Medicine, Hospital for Sick Children and University of Toronto, Toronto, Canada
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Barron E, Cano Sokoloff N, Maffazioli GDN, Ackerman KE, Woolley R, Holmes TM, Anderson EJ, Misra M. Diets High in Fiber and Vegetable Protein Are Associated with Low Lumbar Bone Mineral Density in Young Athletes with Oligoamenorrhea. J Acad Nutr Diet 2015; 116:481-489. [PMID: 26686817 DOI: 10.1016/j.jand.2015.10.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 10/27/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND Associations of bone mineral density (BMD) with specific food components, including dietary fiber and isoflavones (that have a negative association with serum estrogen), are unclear and need to be determined, particularly in populations more likely to consume large amounts of these nutrients (such as young athletes). OBJECTIVE To determine dietary intake of specific food components in athletes with oligoamenorrhea (OA) compared to athletes with eumenorrhea (EA) and nonathletes (NA), and associations of the dietary intake of these nutrients with lumbar spine BMD. DESIGN AND SUBJECTS This cross-sectional study evaluated 68 OA, 24 EA, and 26 NA individuals aged 14 to 23 years. Measurements included 4-day food records, a dual x-ray absorptiometry scan evaluating lumbar spine BMD and body composition, and hormone levels. Multivariate analysis was used to estimate associations of nutrients with lumbar spine BMD. RESULTS Compared with EA and NA, OA had higher intake of fiber, phytic acid, and vegetable protein (all P values <0.0001). Intake of isoflavones, genistein, and daidzein was higher in OA than NA (P=0.003 and P=0.0002, respectively). OA had lower consumption of energy from saturated fatty acids than NA (P=0.002). After controlling for confounders such as body weight, menstrual status (indicative of estrogen status), calcium intake, and serum vitamin D (known BMD determinants), lumbar spine BMD z scores were inversely associated with dietary fiber (β=-.30; P=0.01), vegetable protein (β= -.28; P=0.02), phytic acid (β=-.27; P=0.02), genistein (β=-.25; P=0.01), and daidzein (β=-.24; P=0.01), and positively associated with percent energy from fatty acids (β=.32; P=0.0006). CONCLUSIONS Compared with EA and NA, OA had a higher dietary intake of fiber, vegetable protein, and phytic acid, which were inversely associated with lumbar spine BMD z scores. Further studies are needed to assess dietary recommendations for OA to optimize bone accrual.
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Mitchell DM, Tuck P, Ackerman KE, Cano Sokoloff N, Woolley R, Slattery M, Lee H, Bouxsein ML, Misra M. Altered trabecular bone morphology in adolescent and young adult athletes with menstrual dysfunction. Bone 2015; 81:24-30. [PMID: 26123592 PMCID: PMC4745258 DOI: 10.1016/j.bone.2015.06.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 06/15/2015] [Accepted: 06/18/2015] [Indexed: 01/25/2023]
Abstract
CONTEXT Young amenorrheic athletes (AA) have lower bone mineral density (BMD) and an increased prevalence of fracture compared with eumenorrheic athletes (EA) and non-athletes. Trabecular morphology is a determinant of skeletal strength and may contribute to fracture risk. OBJECTIVES To determine the variation in trabecular morphology among AA, EA, and non-athletes and to determine the association of trabecular morphology with fracture among AA. DESIGN AND SETTING A cross-sectional study performed at an academic clinical research center. PARTICIPANTS 161 girls and young women aged 14-26 years (97 AA, 32 EA, and 32 non-athletes). MAIN OUTCOME MEASURE We measured volumetric BMD (vBMD) and skeletal microarchitecture using high-resolution peripheral quantitative computed tomography. We evaluated trabecular morphology (plate-like vs. rod-like), orientation, and connectivity by individual trabecula segmentation. RESULTS At the non-weight-bearing distal radius, the groups did not differ for trabecular vBMD. However, plate-like trabecular bone volume fraction (pBV/TV) was lower in AA vs. EA (p=0.03), as were plate number (p=0.03) and connectivity (p=0.03). At the weight-bearing distal tibia, trabecular vBMD was higher in athletes vs. non-athletes (p=0.05 for AA and p=0.009 for EA vs. non-athletes, respectively). pBV/TV was higher in athletes vs. non-athletes (p=0.04 AA and p=0.005 EA vs. non-athletes), as were axially-aligned trabeculae, plate number, and connectivity. Among AA, those with a history of recurrent stress fracture had lower pBV/TV, axially-aligned trabeculae, plate number, plate thickness, and connectivity at the distal radius. CONCLUSIONS Trabecular morphology and alignment differ among AA, EA, and non-athletes. These differences may be associated with increased fracture risk.
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Affiliation(s)
- Deborah M Mitchell
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Pediatric Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
| | - Padrig Tuck
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Kathryn E Ackerman
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Division of Sports Medicine, Boston Children's Hospital, Boston, MA 02116, USA
| | - Natalia Cano Sokoloff
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Ryan Woolley
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Meghan Slattery
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Hang Lee
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Mary L Bouxsein
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Madhusmita Misra
- Pediatric Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
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Joy E, De Souza MJ, Nattiv A, Misra M, Williams NI, Mallinson RJ, Gibbs JC, Olmsted M, Goolsby M, Matheson G, Barrack M, Burke L, Drinkwater B, Lebrun C, Loucks AB, Mountjoy M, Nichols J, Borgen JS. 2014 female athlete triad coalition consensus statement on treatment and return to play of the female athlete triad. Curr Sports Med Rep 2015; 13:219-32. [PMID: 25014387 DOI: 10.1249/jsr.0000000000000077] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The female athlete triad is a medical condition often observed in physically active girls and women and involves three components: (1) low energy availability with or without disordered eating, (2) menstrual dysfunction, and (3) low bone mineral density. Female athletes often present with one or more of the three triad components, and early intervention is essential to prevent its progression to serious end points that include clinical eating disorders, amenorrhea, and osteoporosis. This consensus statement presents a set of recommendations developed following the first (San Francisco, CA) and second (Indianapolis, IN) International Symposia on the Female Athlete Triad. This consensus statement was intended to provide clinical guidelines for physicians, athletic trainers, and other health care providers for the screening, diagnosis, and treatment of the female athlete triad and to provide clear recommendations for return to play. The expert panel has proposed a risk stratification point system that takes into account magnitude of risk to assist the physician in decision making regarding sport participation, clearance, and return to play. Guidelines are offered for clearance categories, management by a multidisciplinary team, and implementation of treatment contracts.
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Affiliation(s)
- Elizabeth Joy
- 1Intermountain Healthcare, Salt Lake City, UT; 2Pennsylvania State University, University Park, State College, PA; 3University of California, Los Angeles, Los Angeles, CA; 4Harvard Medical School, Boston, MA; 5University of Toronto, Toronto, Ontario, Canada; 6Hospital for Special Surgery, New York, NY; 7Stanford University, San Francisco, CA; 8California State University Northridge, Northridge, CA; 9Australian Institute of Sport, Australia; 10Washington; 11University of Alberta, Edmonton, Alberta, Canada; 12Ohio University, Athens, OH; 13McMaster University, Guelph, Ontario, Canada; 14San Diego State University, San Diego, CA; and 15Norwegian School of Sport Sciences, Oslo, Norway
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Rauh MJ, Barrack M, Nichols JF. Associations between the female athlete triad and injury among high school runners. Int J Sports Phys Ther 2014; 9:948-58. [PMID: 25540710 PMCID: PMC4275199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
PURPOSE/BACKGROUND During the 2013-14 school year, over 763,000 female athletes participated in interscholastic running sports in the United States. Recent studies have indicated associations between the female athlete triad (Triad) and stress fracture or other musculoskeletal injuries in elite or collegiate female running populations. Little is known about these relationships in an adolescent interscholastic running population. The purpose of this study was to determine the associations between Triad and risk of lower extremity musculoskeletal injury among adolescent runners. METHODS Eighty-nine female athletes competing in interscholastic cross-country and track in southern California were followed, prospectively. The runners were monitored throughout their respective sport season for lower extremity musculoskeletal injuries. Data collected included daily injury reports, Eating Disorder Examination Questionnaire (EDE-Q) that assessed disordered eating attitudes/behaviors, a questionnaire on menstrual history and demographic characteristics, a dual-energy x-ray absorptiometry scan that measured whole-body bone mineral density (BMD) and body composition (lean tissue and fat mass), and anthropometric measurements. RESULTS Thirty-eight runners (42.7%) incurred at least one lower extremity musculoskeletal injury. In the BMD Z-score ≤ -1 standard deviation (SD) adjusted model, low BMD relative to age (BMD Z-score of ≤ -1SD) was significantly associated (Odds Ratio [OR]=4.6, 95% confidence interval [CI]: 1.5-13.3) with an increased occurrence of musculoskeletal injury during the interscholastic sport season. In the BMD Z-score ≤ -2 SDs adjusted model, a history of oligo/amenorrhea was significantly associated (OR=4.1, 95% CI: 1.2-13.5) with increased musculoskeletal injury occurrence. CONCLUSION Oligo/amenorrhea and low BMD were associated with musculoskeletal injuries among the female interscholastic cross-country and track runners. CLINICAL RELEVANCE Regular, close monitoring of adolescent female runners during seasonal and off-season training may be warranted, so that potential problems can be recognized and addressed promptly in order to minimize the risk of running injury. LEVEL OF EVIDENCE 2.
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Affiliation(s)
- Mitchell J. Rauh
- Doctor of Physical Therapy Program, San Diego State University, San Diego, CA, USA
| | - Michelle Barrack
- Department of Family and Consumer Sciences, California State University, Long Beach, Long Beach, CA, USA
| | - Jeanne F. Nichols
- Department of Family and Preventive Medicine, University of California San Diego, La Jolla, CA, USA
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Maïmoun L, Georgopoulos NA, Sultan C. Endocrine disorders in adolescent and young female athletes: impact on growth, menstrual cycles, and bone mass acquisition. J Clin Endocrinol Metab 2014; 99:4037-50. [PMID: 24601725 DOI: 10.1210/jc.2013-3030] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
CONTEXT Puberty is a crucial period of dramatic hormonal changes, accelerated growth, attainment of reproductive capacity, and acquisition of peak bone mass. Participation in recreational physical activity is widely acknowledged to provide significant health benefits in this period. Conversely, intense training imposes several constraints, such as training stress and maintenance of very low body fat to maximize performance. Adolescent female athletes are therefore at risk of overtraining and/or poor dietary intake, which may have several consequences for endocrine function. The "adaptive" changes in the hypothalamic-pituitary-gonadal, -adrenal, and somatotropic axes and the secretory role of the adipose tissue are reviewed, as are their effects on growth, menstrual cycles, and bone mass acquisition. DESIGN A systematic search on Medline between 1990 and 2013 was conducted using the following terms: "intense training," "physical activity," or "exercise" combined with "hormone," "endocrine," and "girls," "women," or "elite female athletes." All articles reporting on the endocrine changes related to intense training and their potential implications for growth, menstrual cycles, and bone mass acquisition were considered. RESULTS AND CONCLUSION Young female athletes present a high prevalence of menstrual disorders, including delayed menarche, oligomenorrhea, and amenorrhea, characterized by a high degree of variability according to the type of sport. Exercise-related reproductive dysfunction may have consequences for growth velocity and peak bone mass acquisition. Recent findings highlight the endocrine role of adipose tissue and energy balance in the regulation of homeostasis and reproductive function. A better understanding of the mechanisms whereby intense training affects the endocrine system may orient research to develop innovative strategies (ie, based on nutritional or pharmacological approaches and individualized modalities of training and competition) to improve the medical care of these adolescents and protect their reproductive function.
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Affiliation(s)
- Laurent Maïmoun
- Service de Médecine Nucléaire (L.M.), Hôpital Lapeyronie, Centre Hospitalier Régional Universitaire (CHRU) de Montpellier and Université Montpellier 1 (UM1), 34295 Montpellier, France; Département d'Hormonologie (L.M., C.S.), Hôpital Lapeyronie, CHRU Montpellier, 34295 Montpellier, France; Physiologie et Médecine Expérimentale du Cœur et des Muscles (L.M.), INSERM Unité 1046, Université Montpellier 1 (UM1) and Université Montpellier 2 (UM2), 34295 Montpellier, France; Division of Reproductive Endocrinology (N.A.G.), Department of Obstetrics and Gynecology, University of Patras Medical School, University Hospital, Patras 265 04, Greece; and Unité d'Endocrinologie et Gynécologie Pédiatrique (C.S.), Département de Pédiatrie, Hôpital Arnaud de Villeneuve, CHRU Montpellier et UM1, 34295 Montpellier, France
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Singhal V, de Lourdes Eguiguren M, Eisenbach L, Clarke H, Slattery M, Eddy K, Ackerman KE, Misra M. Body composition, hemodynamic, and biochemical parameters of young female normal-weight oligo-amenorrheic and eumenorrheic athletes and nonathletes. ANNALS OF NUTRITION AND METABOLISM 2014; 65:264-71. [PMID: 25376841 DOI: 10.1159/000366024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/17/2014] [Indexed: 11/19/2022]
Abstract
AIMS Low-weight hypogonadal conditions such as anorexia nervosa are associated with marked changes in body composition, hemodynamic and hematological parameters, and liver enzymes. The impact of athletic activity in normal-weight adolescents with/without amenorrhea on these parameters has not been assessed. Our aim was to examine these parameters in normal-weight athletes and nonathletes and determine any associations with body composition, oligo-amenorrhea, and exercise intensity. METHODS We assessed vital signs, complete blood counts, liver enzymes, and regional body composition in 43 oligo-amenorrheic athletes (OAA), 24 eumenorrheic athletes (EA), and 23 nonathletes aged 14-21 years. RESULTS The BMI was lower in OAA than in EA. Systolic and pulse pressure and temperature were lowest in OAA. Blood counts did not differ among groups. Aspartate aminotransferase (AST) was higher in both groups of athletes, while alanine aminotransferase (ALT) was higher in OAA than in EA and nonathletes. Total and regional fat were lower in OAA than in other groups, and these factors were associated positively with heart rate and inversely with liver enzymes. CONCLUSIONS Athletic activity is associated with higher AST levels, whereas menstrual dysfunction is associated with lower total and regional fat and higher ALT levels. Higher liver enzymes are associated with reductions in total and regional fat.
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Affiliation(s)
- Vibha Singhal
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Mass., USA
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Lagowska K, Kapczuk K, Jeszka J. Nine-month nutritional intervention improves restoration of menses in young female athletes and ballet dancers. J Int Soc Sports Nutr 2014; 11:52. [PMID: 25389380 PMCID: PMC4226886 DOI: 10.1186/s12970-014-0052-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 10/14/2014] [Indexed: 11/16/2022] Open
Abstract
Background We hypothesized that an intervention designed to increase the energy and nutrient intake could serve as an efficacious method to restore normal menstrual functions in athletes and ballet dancers. Methods In this study, a 9-month nutritional intervention (NI) was conducted in 21 dancers and 31 athletes with menstrual disorders. Analyses of the body composition were performed, and the levels of LH, FSH, P, E2, TSH, T, PRL, SHBG, leptin, resting metabolic rate (RMR), energy and nutrient intake, total energy expenditure were estimated. The NI was based on an individual diet. The effects of the NI were controlled after 3, 6 and 9 months of use. Results The NI resulted in a significant change of the energy and nutrient intake. After 9 months, a significant increase in the LH level among dancers was observed, while in female athletes this effect was seen after 3 months of the NI use. The 9-month NI resulted in the restoration of regular menses in 3 dancers and 7 athletes, respectively. Women with regular cycles had a higher percentage of the fat mass (FM). Conclusions A non-pharmacological intervention in female athletes and ballet dancers with menstrual disorders can restore regular menstrual cycles, although restoration of menses may take more than 1 year. An increase in the body fat mass may be one of the most important predictors of restoration of menses.
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Affiliation(s)
- Karolina Lagowska
- Department of Human Nutrition and Hygiene, Poznan University of Life Sciences, Poznan, Poland
| | - Karina Kapczuk
- Department of Perinatology and Gynecology, Poznan University of Medical Sciences, Poznan, Poland
| | - Jan Jeszka
- Department of Human Nutrition and Hygiene, Poznan University of Life Sciences, Poznan, Poland
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Abstract
The pediatrician plays a major role in helping optimize bone health in children and adolescents. This clinical report reviews normal bone acquisition in infants, children, and adolescents and discusses factors affecting bone health in this age group. Previous recommended daily allowances for calcium and vitamin D are updated, and clinical guidance is provided regarding weight-bearing activities and recommendations for calcium and vitamin D intake and supplementation. Routine calcium supplementation is not recommended for healthy children and adolescents, but increased dietary intake to meet daily requirements is encouraged. The American Academy of Pediatrics endorses the higher recommended dietary allowances for vitamin D advised by the Institute of Medicine and supports testing for vitamin D deficiency in children and adolescents with conditions associated with increased bone fragility. Universal screening for vitamin D deficiency is not routinely recommended in healthy children or in children with dark skin or obesity because there is insufficient evidence of the cost-benefit of such a practice in reducing fracture risk. The preferred test to assess bone health is dual-energy x-ray absorptiometry, but caution is advised when interpreting results in children and adolescents who may not yet have achieved peak bone mass. For analyses, z scores should be used instead of T scores, and corrections should be made for size. Office-based strategies for the pediatrician to optimize bone health are provided. This clinical report has been endorsed by American Bone Health.
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Abstract
Pubertal maturation plays a fundamental role in bone acquisition. In retrospective epidemiological surveys in pre- and postmenopausal women, relatively later menarcheal age was associated with low bone mineral mass and increased risk of osteoporotic fracture. This association was usually ascribed to shorter time exposure to estrogen from the onset of pubertal maturation to peak bone mass attainment. Recent prospective studies in healthy children and adolescents do not corroborate the limited estrogen exposure hypothesis. In prepubertal girls who will experience later menarche, a reduced bone mineral density was observed before the onset of pubertal maturation, with no further accumulated deficit until peak bone mass attainment. In young adulthood, later menarche is associated with impaired microstructural bone components and reduced mechanical resistance. This intrinsic bone deficit can explain the fact that later menarche increases fracture risk during childhood and adolescence. In healthy individuals, both pubertal timing and bone development share several similar characteristics including wide physiological variability and strong effect of heritable factors but moderate influence of environmental determinants such as nutrition and physical activity. Several conditions modify pubertal timing and bone acquisition, a certain number of them acting in concert on both traits. Taken together, these facts should prompt the search for common genetic regulators of pubertal timing and bone acquisition. It should also open epigenetic investigation avenues to pinpoint which environmental exposure in fetal and infancy life, such as vitamin D, calcium, and/or protein supplies, influences both pubertal timing and bone acquisition.
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Affiliation(s)
- Jean-Philippe Bonjour
- Division of Bone Diseases, University Hospitals and Faculty of Medicine, CH-1211 Geneva, Switzerland
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Effects of dietary intervention in young female athletes with menstrual disorders. J Int Soc Sports Nutr 2014; 11:21. [PMID: 24876828 PMCID: PMC4038365 DOI: 10.1186/1550-2783-11-21] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Accepted: 05/16/2014] [Indexed: 11/25/2022] Open
Abstract
Background The aim of this study was to evaluate the influence of three months of dietary intervention on menstrual cycle in young female athletes with amenorrhea or oligomenorrhea. Methods From forty-five female professional athletes with menstrual irregularity that were recruited thirty-one, aged 18.1 ± 2.6 years, completed the study and were analyzed. Hyperprolactinemia, thyroid dysfunction, primary ovarian failure and hyperandrogenism were excluded in the study participants. The subjects started intense training at the age of 11.2 ± 3.5 years and continued during next 6.8 ± 3.3 years. Energy and nutrients intake, total energy expenditure, energy availability and body composition as well as serum concentrations of LH, FSH, 17 – beta estradiol and progesterone were measured at the beginning of the study and after three months of individualized dietary intervention. Results Following three months of dietary intervention significant increase in energy intake (2354 ± 539 vs. 258 8 ± 557 kcal, P = 0.004) and energy availability (28.3 ± 9.2 vs. 35.8 ± 12.3 kcal/kg FFM/d, P = 0.011) was observed as well as improved energy balance (−288 ± 477 vs. -51 ± 224 kcal/d, P = 0.002). Though no changes in BMI and body composition were noted but significant rise in LH concentrations (3.04 ± 1.63 vs. 4.59 ± 2.53 mIU/ml, P = 0.009) and LH to FSH ratio (0.84 ± 0.56 vs. 0.96 ± 0.52, P = 0.001) was achieved, but no restoration of menstrual cyclicity. Conclusions This report provides further support for the role of energy deficiency in menstrual disorders among young female athletes and the benefits of an adequate energy intake and energy availability on hormones concentration. Continuation controlled dietary intervention is needed to assess the extent to which long-term improvement in the nutritional status results in improvements in the hormonal status of female athletes, to an extent that would allow the regulation of the menstrual cyclity.
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Mallinson RJ, De Souza MJ. Current perspectives on the etiology and manifestation of the "silent" component of the Female Athlete Triad. Int J Womens Health 2014; 6:451-67. [PMID: 24833922 PMCID: PMC4014372 DOI: 10.2147/ijwh.s38603] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The Female Athlete Triad (Triad) represents a syndrome of three interrelated conditions that originate from chronically inadequate energy intake to compensate for energy expenditure; this environment results in insufficient stored energy to maintain physiological processes, a condition known as low energy availability. The physiological adaptations associated with low energy availability, in turn, contribute to menstrual cycle disturbances. The downstream effects of both low energy availability and suppressed estrogen concentrations synergistically impair bone health, leading to low bone mineral density, compromised bone structure and microarchitecture, and ultimately, a decrease in bone strength. Unlike the other components of the Triad, poor bone health often does not have overt symptoms, and therefore develops silently, unbeknownst to the athlete. Compromised bone health among female athletes increases the risk of fracture throughout the lifespan, highlighting the long-term health consequences of the Triad. The purpose of this review is to examine the current state of Triad research related to the third component of the Triad, ie, poor bone health, in an effort to summarize what we know, what we are learning, and what remains unknown.
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Affiliation(s)
- Rebecca J Mallinson
- Department of Kinesiology, Women's Health and Exercise Laboratory in Noll Laboratory, Pennsylvania State University, University Park, PA, USA
| | - Mary Jane De Souza
- Department of Kinesiology, Women's Health and Exercise Laboratory in Noll Laboratory, Pennsylvania State University, University Park, PA, USA
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2014 Female Athlete Triad Coalition consensus statement on treatment and return to play of the female athlete triad: 1st International Conference held in San Francisco, CA, May 2012, and 2nd International Conference held in Indianapolis, IN, May 2013. Clin J Sport Med 2014; 24:96-119. [PMID: 24569429 DOI: 10.1097/jsm.0000000000000085] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The Female Athlete Triad is a medical condition often observed in physically active girls and women, and involves 3 components: (1) low energy availability with or without disordered eating, (2) menstrual dysfunction, and (3) low bone mineral density. Female athletes often present with 1 or more of the 3 Triad components, and an early intervention is essential to prevent its progression to serious endpoints that include clinical eating disorders, amenorrhea, and osteoporosis. This consensus statement represents a set of recommendations developed following the first (San Francisco, California) and second (Indianapolis, Indianna) International Symposia on the Female Athlete Triad. It is intended to provide clinical guidelines for physicians, athletic trainers, and other health care providers for the screening, diagnosis, and treatment of the Female Athlete Triad and to provide clear recommendations for return to play. The 2014 Female Athlete Triad Coalition Consensus Statement on Treatment and Return to Play of the Female Athlete Triad Expert Panel has proposed a risk stratification point system that takes into account magnitude of risk to assist the physician in decision-making regarding sport participation, clearance, and return to play. Guidelines are offered for clearance categories, management by a multidisciplinary team, and implementation of treatment contracts. This consensus paper has been endorsed by The Female Athlete Triad Coalition, an International Consortium of leading Triad researchers, physicians, and other health care professionals, the American College of Sports Medicine, and the American Medical Society for Sports Medicine.
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De Souza MJ, Nattiv A, Joy E, Misra M, Williams NI, Mallinson RJ, Gibbs JC, Olmsted M, Goolsby M, Matheson G. 2014 Female Athlete Triad Coalition Consensus Statement on Treatment and Return to Play of the Female Athlete Triad: 1st International Conference held in San Francisco, California, May 2012 and 2nd International Conference held in Indianapolis, Indiana, May 2013. Br J Sports Med 2014; 48:289. [DOI: 10.1136/bjsports-2013-093218] [Citation(s) in RCA: 327] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Abstract
Athletic activity may be associated with alterations in various neuroendocrine axes depending on the state of energy availability. In addition, genetic factors and an underlying predilection for polycystic ovarian syndrome (PCOS) may predispose some athletes to develop functional hypothalamic amenorrhea earlier than other athletes. In conditions of low energy availability associated with athletic activity, changes that occur in various neuroendocrine axes are primarily adaptive, and aim to either conserve energy for the most essential functions, or allow the body to draw on its reserves to meet energy needs. These hormonal changes, however, then lead to changes in body composition and bone metabolism. Impaired bone accrual in younger athletes and low bone density in older athletes constitutes the major pathologic consequence of neuroendocrine changes associated with low energy availability. The female athlete triad of low energy availability, menstrual dysfunction, and low bone density is prevalent in certain kinds of sports and activities, particularly endurance sports, gymnastics, and ballet. It is essential to screen for this condition in athletes at every preparticipation physical and during office visits, and to put in place an effective treatment team to manage the triad early, in order to optimize outcomes.
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Affiliation(s)
- Madhusmita Misra
- Pediatric Endocrine and Neuroendocrine Units, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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Mallinson RJ, Williams NI, Hill BR, De Souza MJ. Body composition and reproductive function exert unique influences on indices of bone health in exercising women. Bone 2013; 56:91-100. [PMID: 23702387 DOI: 10.1016/j.bone.2013.05.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 03/18/2013] [Accepted: 05/09/2013] [Indexed: 11/22/2022]
Abstract
Reproductive function, metabolic hormones, and lean mass have been observed to influence bone metabolism and bone mass. It is unclear, however, if reproductive, metabolic and body composition factors play unique roles in the clinical measures of areal bone mineral density (aBMD) and bone geometry in exercising women. This study compares lumbar spine bone mineral apparent density (BMAD) and estimates of femoral neck cross-sectional moment of inertia (CSMI) and cross-sectional area (CSA) between exercising ovulatory (Ov) and amenorrheic (Amen) women. It also explores the respective roles of reproductive function, metabolic status, and body composition on aBMD, lumbar spine BMAD and femoral neck CSMI and CSA, which are surrogate measures of bone strength. Among exercising women aged 18-30 years, body composition, aBMD, and estimates of femoral neck CSMI and CSA were assessed by dual-energy x-ray absorptiometry. Lumbar spine BMAD was calculated from bone mineral content and area. Estrone-1-glucuronide (E1G) and pregnanediol glucuronide were measured in daily urine samples collected for one cycle or monitoring period. Fasting blood samples were collected for measurement of leptin and total triiodothyronine. Ov (n = 37) and Amen (n = 45) women aged 22.3 ± 0.5 years did not differ in body mass, body mass index, and lean mass; however, Ov women had significantly higher percent body fat than Amen women. Lumbar spine aBMD and BMAD were significantly lower in Amen women compared to Ov women (p < 0.001); however, femoral neck CSA and CSMI were not different between groups. E1G cycle mean and age of menarche were the strongest predictors of lumbar spine aBMD and BMAD, together explaining 25.5% and 22.7% of the variance, respectively. Lean mass was the strongest predictor of total hip and femoral neck aBMD as well as femoral neck CSMI and CSA, explaining 8.5-34.8% of the variance. Upon consideration of several potential osteogenic stimuli, reproductive function appears to play a key role in bone mass at a site composed of primarily trabecular bone. However, lean mass is one of the most influential predictors of bone mass and bone geometry at weight-bearing sites, such as the hip.
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Affiliation(s)
- Rebecca J Mallinson
- Penn State University, Department of Kinesiology, Women's Health and Exercise Laboratory, Noll Laboratory, University Park, PA 16802, USA.
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