Female athlete triad is a syndrome in which eating disorders (or low energy availability), amenorrhoea/oligomenorrhoea, and decreased bone mineral density (osteoporosis and osteopenia) are present. Also known simply as the Triad, this condition is seen in females participating in sports that emphasize leanness or low body weight. The triad is a serious illness with lifelong health consequences and can potentially be fatal.
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Classification
The female athlete triad is a syndrome of three interrelated conditions. Thus, if an athlete is suffering from one element of the Triad, it is likely that she is suffering from the other two components of the triad as well. With the increase in female participation in sports, much of it attributable to Title IX legislation in the United States, the incidence of a triad of disorders particular to women -- the female athlete triad--has also increased. Due to this increasing prevalence, the female athlete triad and its relationship with athletics was identified in the 1980s as the symptoms, risk factors, causes and treatments were studied in depth and their relatedness evaluated. The condition is most common in cross country running, gymnastics, and figure skating. Many of those who suffer from the triad are involved in some sort of athletics, in order to promote weight loss and leanness. The competitive sports that promote this physical leanness may result in disordered eating, and be responsible for the origin of the Female Athlete Triad. For some women, not balancing the needs of their bodies and their sports can have major consequences. In addition, for some competitive female athletes, problems such as low self-esteem, a tendency toward perfectionism, and family stress place them at risk for disordered eating.
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Signs and symptoms
Clinical symptoms of the Triad may include disordered eating, fatigue, hair loss, cold hands and feet, dry skin, noticeable weight loss, increased healing time from injuries, increased incidence of bone fracture and cessation of menses. Affected females may also struggle with low self-esteem and depression.
Upon physical examination, a physician may also note the following symptoms: elevated carotene in the blood, anemia, orthostatic hypotension, electrolyte irregularities, hypoestrogenism, vaginal atrophy, and bradycardia.
An athlete may show signs of restrictive eating, but not meet the clinical criteria for an eating disorder. She may also display subtle menstrual disturbances, such as a change in menstrual cycle length, anovulation, or luteal phase defects, but not yet have developed complete amenorrhea. Likewise, an athlete's bone density may decrease, but may not yet have dropped below her age-matched normal range.
Eating disorder
Energy availability is defined as energy intake minus energy expended. Energy is taken in through food consumption. Our bodies expend energy through normal functioning as well as through exercise. In the case of female athlete triad, low energy availability may be due to eating disorders, but not necessarily so. Athletes may experience low energy availability by exercising more without a concomitant change in eating habits, or they may increase their energy expenditure while also eating less. Disordered eating is defined among this situation due to the low caloric intake or low energy availability. The disordered eating that accompanies female athlete triad can range from avoiding certain types of food the athlete thinks are "bad" (such as foods containing fat) to serious eating disorders like anorexia nervosa or bulimia nervosa.
While most athletes do not meet the criteria to be diagnosed with an eating disorder such as anorexia nervosa or bulimia nervosa, many will exhibit disordered eating habits. Some examples of disordered eating habits are fasting; binge-eating; purging; and the use of diet-pills, laxatives, diuretics, and enemas. By restricting their diets, athletes worsen the problem of low energy availability.
Having low dietary energy from excessive exercise and/or dietary restrictions leaves too little energy for the body to carry out normal functions such as maintaining a regular menstrual cycle or healthy bone density.
Amenorrhea
Amenorrhea, defined as the cessation of a woman's menstrual cycle for more than three months, is the second disorder in the Triad. Weight fluctuations from dietary restrictions and/or excessive exercise affect the hypothalamus's output of gonadotropic hormones. Gonadotropic hormones "stimulate growth of the gonads and the secretion of sex hormones." (e.g. gonadotropin-releasing hormone, lutenizing hormone and follicle stimulating hormone.) These gonadotropic hormones play a role in stimulating estrogen release from the ovaries. Without estrogen release, the menstrual cycle is disrupted. Exercising intensely and not eating enough calories can lead to decreases in estrogen, the hormone that helps to regulate the menstrual cycle. As a result, a female's periods may become irregular or stop altogether.
There are two types of amenorrhea. A woman who has been having her period and then stops menstruating for ninety days or more is said to have secondary amenorrhea. Primary amenorrhea is characterized by delayed menarche. Menarche is the onset of a girl's first period. Delayed menarche may be associated with delay of the development of secondary sexual characteristics.
Osteoporosis
Osteoporosis is defined by the National Institutes of Health as ''a skeletal disorder characterized by compromised bone strength predisposing a person to an increased risk of fracture.'' Low estrogen levels and poor nutrition, especially low calcium intake, can lead to osteoporosis, the third aspect of the triad. This condition can ruin a female athlete's career because it may lead to stress fractures and other injuries.
Patients with female athlete triad get osteoporosis due to hypoestrogenemia, or low estrogen levels. With estrogen deficiency, the osteoclasts live longer and are therefore able to resorb more bone. In response to the increased bone resorption, there is increased bone formation and a high-turnover state develops which leads to bone loss and perforation of the trabecular plates. As osteoclasts break down bone, patients see a loss of bone mineral density. Low bone mineral density renders bones more brittle and hence susceptible to fracture. Because athletes are active and their bones must endure mechanical stress, the likelihood of experiencing bone fracture is particularly high.
Additionally, because those suffering with female athlete triad are also restricting their diet, they may also not be consuming sufficient amounts vitamins and minerals which contribute to bone density; not getting enough calcium or vitamin D further exacerbates the problem of weak bones.
Bone mass is now thought to peak between the ages of 18-25. Thus, behaviors which result in low bone density in youth could be detrimental to an athlete's bone health throughout her lifetime.
Causes
Gymnastics, figure skating, ballet, diving, swimming, and long distance running are examples of sports which emphasize low body weight. The Triad is seen more often in aesthetic sports such as these versus ball game sports. Women taking part in these sports may be at an increased risk for developing female athlete triad.
Athletes at greatest risk for low energy availability are those who restrict dietary energy intake, who exercise for prolonged periods, who are vegetarian, and who limit the types of food they will eat. Many factors appear to contribute to disordered eating behaviors and clinical eating disorders. Dieting is a common entry point and interest has focused on the contribution of environmental and social factors, psychological predisposition, low self-esteem, family dysfunction, abuse, biological factors, and genetics. Additional factors for athletes include early start of sport-specific training and dieting, injury, and a sudden increase in training volume. Surveys show more negative eating attitude scores in athletic disciplines favoring leanness. Disordered eating behaviors are risk factors for eating disorders.
Treatment
The underlying cause of the female athlete triad is an imbalance between energy taken into the body (through nutrition) and energy used by the body (through exercise). The treatment includes correcting this imbalance by either increasing calories in a diet or by decreasing calories burned by exercise for 12 months or longer. Persons with female athlete triad should get treatment from a multi-disciplinary team that includes a physician, dietitian, and mental health counselor, and seek support from family, friends, and their coach.
Because a symptom of the female athlete triad is menstrual dysfunction, some physicians may recommend oral contraceptives because those pills will regulate the menstrual cycle. However, the underlying cause of the menstrual disorder is an energy imbalance, and using pills to regulate the menstrual cycle without changes in diet and behavior is likely to mask the food deficiency and delay appropriate treatment. A woman taking contraceptives to treat menstrual dysfunction without correcting this energy imbalance will continue to lose bone density.
Less exercise
Continued participation in training and competition depends on the physical and mental health of the athlete. Athletes who weigh less than 80 percent of their ideal body weight may not be able to safely participate.
Persons with female athlete triad are often asked by health care providers to reduce the amount of time they spend exercising by 10-12 percent.
Eating more
Low energy availability with or without eating disorders, functional hypothalamic amenorrhea, and osteoporosis, alone or in combination, pose significant health risks to physically active girls and women. Prevention, recognition, and treatment of these clinical conditions should be a priority of those who work with female athletes to ensure that they maximize the benefits of regular exercise.
Patients are recommended to work with a dietician who can monitor their nutritional status and help the patient work towards a healthy goal weight. Patients should also meet with a psychiatrist or psychologist to address the psychological aspects of the triad. Therefore, it is important that trainers and coaches are made aware of the athlete's condition and be part of her recovery.
Medicine
Patients are also sometimes treated pharmacologically. To both induce menses and improve bone density, doctors may prescribe cyclic estrogen or progesterone as is used to treat post-menopausal women. Patients may also be put on oral contraceptives to stimulate regular periods. In addition to hormone therapy, nutrition supplements may be recommended. Doctors may prescribe calcium supplements. Vitamin D supplements may be also used because this vitamin aids in calcium absorption. Bisphosphonates and calcitonin, used to treat adults with osteoporosis, may be prescribed, although their effectiveness in adolescents has not yet been established. Finally, if indicated by a psychiatric examination, the affected athlete may be prescribed anti-depressants and in some cases benzodiazepines to help in alleviating severe distress at mealtimes.
Prognosis
Sustained low energy availability, with or without disordered eating, can impair health. Psychological problems associated with eating disorders include low self-esteem, depression, and anxiety disorders. Medical complications involve the cardiovascular, endocrine, reproductive, skeletal, gastrointestinal, renal, and central nervous systems. The prognosis for anorexia nervosa is grave with a six-fold increase in standard mortality rates compared to the general population. In one study, 5.4% of athletes with eating disorders reported suicide attempts. Although 83% of anorexia nervosa patients partially recover, the rate of sustained recovery of weight, menstrual function and eating behavior is only 33%.
Amenorrheic women can be infertile, due to the absence of ovarian follicular development, ovulation, and luteal function. Consequences of hypoestrogenism seen in amenorrheic athletes include impaired endothelium-dependent arterial vasodilation, which reduces the perfusion of working muscle, impaired skeletal muscle oxidative metabolism, elevated low-density lipoprotein cholesterol levels, and vaginal dryness.
Due to low bone mineral density that declines as the number of missed menstrual cycles accumulates, and the loss of BMD may not be fully reversible. Stress fractures occur more commonly in physically active women with menstrual irregularities and/or low BMD with a relative risk for stress fracture two to four times greater in amenorrheic than eumenorrheic athletes. Fractures also occur in the setting of nutritional deficits and low BMD.
Society and culture
The American Academy of Pediatrics and the AAFP contend that exercise is important and should be promoted in girls for health and enjoyment, however pediatricians should be wary of health problems that may occur in female athlete. The health related issues concerning this topic are grave and can lead to numerous health issues as previously demonstrated. The treatment plan will depend on the severity of the disorder, however some form of treatment has been shown as helpful to produce successful progress towards a better health condition. Clearly, many health problems arise due to disordered eating.
Coaches are discouraged from active participation in the treatment of eating disorders. In addition to conflicts of interest, coaches may be perceived to pressure athletes and potentially perpetuate components of the Female Athlete Triad. For example, in maintaining a place on the team or continued scholarship support, a female athlete may feel compelled to overtrain or restrict eating.
Moving Forward
Coaches, athletic trainers, and healthcare providers should also be educated about the female athlete triad to detect and recognize its components before athletes reach the pathologic end of the spectrum. Awareness levels among athletes, coaches, and healthcare professionals should be assessed to determine where education is needed most. A patient may present with any of the components of the triad; therefore, an awareness of these components among all involved in the care of female athletes is prudent. Athletes should also be taught proper nutrition for athletic performance by their coaches and health providers, because a specific breakdown of macronutrients combined with healthy dietary choices will help these athletes perform the best they possibly can, instead of forcing them to only care about their physique.
Source of the article : Wikipedia
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