Transcript Ergogenic Aids

Prevalence of Substance Abuse in Sports
Accurate assessment is difficult to
achieve because of the sensitive
and personal nature of the problem.
Prevalence of Substance Abuse in Sports
Most studies have focused on
alcohol and steroid use:
Alcohol use: 55% of high school
athletes; 87%-88% of college athletes.
Performance-enhancing drugs:
5% of high school and college
athletes report using them
(40%-60% among elite athletes)
Why Athletes and Exercisers Take Drugs
Physical reasons include
wanting to
enhance performance,
treat injury,
look better, and
control appetite and lose weight.
Why Athletes and Exercisers Take Drugs
Psychological reasons include wanting to
escape from unpleasant emotions
or stress
build confidence or enhance
self-esteem
Get buzzed/wasted or seek fun/excitement.
Social reasons include:
emulating athletic heroes
peer pressure
Ergogenic Aids - Definition
 Any
substance or treatment that
either directly improves
physiological variables associated
with exercise performance or
removes subjective restraints that
may limit physiologic capacity
Ergogenic Aids
 Types
Psychological
Mechanical
Pharmacological
Physiological
Nutritional
Psychological Phenomena
 Hypnosis
 Music
 Performance
Enhancement
Techniques (PST)
 “Placebo Effect” / Superstitions
Mechanical Factors
Clothing
 Equipment
 Heat and Cold Application
 Improved Body Mechanics
 Environment (Playing Conditions and
Surface)

Pharmacological Agents

Over the Counter Drugs:
 Caffeine,
Nicotine, Amphetamines,
Melatonin….etc;

Recreational Drugs:
 Alcohol,

Marijuana, Cocaine…….etc;
Prescription Drugs:
 Anabolic
Steroids, Benzodiazepines, BetaAdrenergic Agents…….etc;
Anabolic Steroids
Testosterone (must be injected or it will be
destroyed by digestive enzymes)
 Anabolic Androgenic Steroids (AAS)

 synthetic
drugs designed to mimic the
effects of testosterone; taken orally or
injected

Human Growth Hormone (anabolic)
 used

like steroids to increase muscle mass
Beta Adrenergic Agents (Clenbuterol)
Ergogenic Effect and Side
Effects of AAS
Increase muscle mass; decrease body fat;
improve strength even without training
 Side Effects (AAS):

 acne;
hair loss; male secondary sex
characteristics like deepening of the voice;
 increased aggression, depression, hostility,
suicide attempts, tendency to commit violent acts;
 cardiovascular disease (elevated cholesterol,
blood pressure)
 severe liver damage;tumors (Alzado)….. etc
Effects and Side Effects of
Growth Hormone
hormone secreted by pituitary gland;
stimulates bone and muscle growth; effects
protein, carbohydrate and fat metabolism
 currently no data showing ergogenic effects
beyond the effect generated by strength
training
 may lead to diabetes; thickening of soft
tissue in face, hands and feet; enlargement
of organs such as liver

Effects and Side Effects of
Clenbuterol (illegal)
increase lean muscle mass and strength;
decrease body fat
 less potent than anabolic steroids
 side effects:

 tachycardia
 muscle
tension
 headaches and dizziness
Physiological Agents
Bicarbonate Loading
 Blood Doping
 Erythropoietin (EPO)
 Altitude Training
 Glycerol
 Phosphate Loading

Doping Definition (USOC)

“…..the administration of or use by a
competing athlete of any substance foreign
to the body or of any physiological
substance taken in abnormal quantity or
taken by an abnormal route of entry into the
body, with the sole intention of increasing in
an artificial manner his/her performance in
competition is regarded as doping..”
Erythropoietin - EPO
Hormone produced by kidneys to stimulate
the bone marrow to produce red blood cells
 Has same effect as “blood doping” and
altitude training (more efficient use of O2)
 Illegal
 Dangers: increased blood viscosity, clotting
potential, increased risk for stroke and heart
failure, or pulmonary edema

Nutritional Agents
Amino Acid Supplementation
 Bee Pollen
 Carbohydrate Loading
 Carnitine
 Coenzyme Q-10
 Creatine Phosphate
 Water or Special Beverages

Vitamins as Ergogenic Aids

Bee Pollen:
 mixture

of vitamins, minerals, amino acids
and other nutrients thought to improve
performance
Coenzyme Q10 (ubiquinon):
 facilitates aerobic metabolism as part of
the electron transport chain (classified as a
vitamin)

Ergogenic Effect not supported by Research
“There is still no sphere of
nutrition in which faddism,
misconceptions, ignorance, and
quackery are more obvious than
in athletics..”
(M.H. Williams in Nutrition for Fitness and
Sport, 4th ed., 1995)
Ergogenic Effect Supported
by Research
 Legal
Supplements
 Creatine Phosphate
 Caffeine
 Altitude training (equivocal)