Chapter 11: Performance Enhancing Substances And Techniques Flashcards
What are the 3 types of ergogenic aids?
Nutritional aids, pharmacological aids, physiological aids
Why do athletes take ergogenic aids?
Physical appearance, to prevent and teat injuries, illnesses or diseases, peer pressure, cope with stress, increase athletic potential and bridge the genetic gap
What are examples of nutritional aids?
Vitamins and minerals, protein and amino acids, carnitine, creatine, caffeine
What are examples of pharmacological aids?
Pain masking drugs, anabolic steroids, prohormones, human growth hormone, erythropoietin
What are examples of physiological aids?
Blood doping, drug masking
Vitamins and minerals
Studies have not shown improved exercise performance. Taking megadoses can be harmful. Only useful where deficiencies are present
Protein and amino acids
Beneficial for muscle repair. Excess amounts is unnecessary, body will use it deficient or store as excess weight. Can produce elevated levels of urea and muscle cramps in extreme excess.
Carnitine
Fat burner. Claims to decrease lactate production, increase VO2 max and indices loss of body fat. Found in meat and dairy. No support for claims that it improves body composition or athletic performance
Creatine
Present in normal skeletal muscle and facilitates ATP production. Claims to increase phosphor eating storage in muscle, increase speed, power and strength ( some studies prove this). May result in kidney damage and muscle cramps. Found in red and organ meats. Individuals are responders or non-responders
Caffeine
Increases alertness and performance, reduces fatigue. Theoretically produces dehydration. Causes nervousness and irritability.
Pain masking drugs
Narcotic analgesics (morphine, heroin). Athlete may increase injury while on drug. Highly addictive.
Anabolic steroids
Synthetic derivative for testosterone. Increases muscle mass and strength, decrease body fat, quicker recovery from training. No enhancement of performance. Liver damage, increased aggressiveness, masculinization.
Prohormones
Supposedly converts to testosterone. Side effects…acne, baldness, breast enlargement in males, aggressive behaviour
Human growth hormone
Increase muscle mass, strengthen bones, limit weight gain. Side effects…heart problems, excessive growth of hands and feet, organ enlargement, skeletal abnormalities
Erythropoietin
Natural protein produced in kidneys. Used in endurance sports. Synthetic EPO increases hemoglobin levels, which increase RBC’s ability to carry oxygen