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Lecture 16

KNES 372 Lecture Notes - Lecture 16: Anorexia Nervosa, Bulimia Nervosa, Binge Eating DisorderPremium

4 pages26 viewsFall 2018

Course Code
KNES 372
Kati Pasanen

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Lecture 16 Thursday November 1, 2018
Female Athlete II
Disordered Eating and Clinical Eating Disorders in Athletes
Disordered Eating (DE) and Eating Disorders (ED) are related but not always the same all EDs involve DE, but
not all DE meet diagnostic criteria for an ED
Disordered eating (DE) = wide spectrum of harmful and often ineffective eating behaviors used in attempts to
lose weight of attain a lean appearance
Eating disorders (ED) = condition characterized by persistent disturbance of eating or eating related behavior
that significantly impairs physical health and/or psychosocial function
DE and EDs are more prevalent in athletes than non-athletes, especially in female athletes and exercising
women. Male athletes have a lower prevalence of DE and ED than female athletes, but a higher prevalence than
male non-athletes
Rates of DE and ED vary by sport
Prevalence of DE in female athletes:
o Female collegiate and elite athletes 2% 42%
Non-leanness collegiate sports 2% 20%
Leanness or esthetic sports 21% 42%
o Female high school athletes (all sports) 20%
Prevalence of ED in female athletes:
o Study of 522 female athletes and 448 non-athlete controls: Diagnosed with an ED 18% of athletes and
5% of controls
o Study of 1620 athletes and 1696 controls • Diagnosed with an ED 20% of athletes and 9% controls
Some studies have found similarly high rates in males
Prevalence of DE in male athletes: antigravitation sports (like ski jumping) 22%, endurance sports 9%, ball game
sports 5%
GERMANY: Prevalence of DE in male athletes: antigravitation sports 42%, weight class sports 17%, endurance
sports 10%
Every organ system of human body can be affected by DE and ED
Health complications involve cardiovascular, gastrointestinal, endocrine, reproductive, skeletal, renal and
central nervous systems, including psychological stress and depressions
Increased risk of premature death mortality rate is 2-5% per decade
o Death is often caused by suicide or cardiac arrhythmia
o Suicide accounts for 20% of deaths among patients with anorexia nervosa, and 23% of deaths among
patients with bulimia nervosa
ED/DE result in decreased muscle strength and power, decreased maximum oxygen uptake & endurance
performance, loss of motor skills and coordination, slow nerve conduction velocity and muscle contraction,
reduced recovery, loss of muscle mass, fatigue… increased injury risk (bone and other musculoskeletal injuries)
4 groups of clinical eating disorders:
o Anorexia nervosa
o Bulimia nervosa
o Binge eating disorder
o Other specified and unspecified feeding or eating disorder (OSFED)
These EDs have many features in common, and athletes frequently move between them
Serious mental illnesses with significant life-threating medical and psychiatric morbidity and mortality
Early recognition and timely intervention is the ideal standard of care
Anorexia Nervosa
0.5 1% of general population
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