Transcript Ch. 11

Exercise Science
Section 11: Performance Enhancing Substances
and Techniques
An Introduction to Health and Physical
Education
Ted Temertzoglou
Paul Challen
ISBN 1-55077-132-9
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This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Ergogenic Aids
Ergogenic aids are used by some athletes to:
Improve physical appearance
Prevent and/or treat injuries, illnesses, or
disease
Cope with stress
Increase athletic potential
Bridge the “genetic gap”
Three types of Ergogenic Aids:
Nutritional aids
Pharmacological aids
Physiological aids
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This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Nutritional Aids
Nutritional supplements include
Vitamins and minerals
Protein and amino acid supplements
Carnitine
Creatine
Caffeine
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This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Vitamins and Minerals
Regularly taking megavitamins may cause:
Illness
Tissue damage
Toxic effects to body
Supplements are beneficial when a clear
deficiency is indicated
Athletes are advised to increase food
intake, resulting in dietary sources of
vitamins and minerals
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Protein and Amino Acid Supplements
Benefits/risks of protein and amino acid supplements are fraught with
conflicting research findings/evidence
Studies report that ingesting excessive amounts of
protein can produce toxic effects due to
overproduction of urea resulting in:
Dehydration
Muscle cramps
Impairment of thermoregulatory function
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Carnitine
Carnitine is advertised as a “fat burner” that claims to:
Decrease lactate production
Increase VO2max
Delay fatigue
Spare glycogen
Induce loss of body fat
Enhance aerobic and anaerobic capacity
Experimental data has failed to support these theories
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Creatine
Creatine is an oral supplement that claims to increase:
Phosphocreatine storage in muscle
Speed
Power
Strength
Effectiveness of creatine supplement
Is still unclear
More studies need to be conducted on
the safety of long-term use
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Caffeine
Evidence suggests caffeine increases performance during
prolonged endurance and intense short-term exercises
Increase alertness
Reduces fatigue
Energy drinks contain as much
as 80mg of caffeine
Ingesting caffeine can cause:
Dehydration
Nervousness
Irritability
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Pharmacological Aids
Pharmacological aids include:
Pain-masking drugs
Anabolic steroids
Prohormones
Human growth hormone
Erythropoietin
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Pain-Masking Drugs
Pain-masking agents (narcotic analgesics) include:
Morphine
Heroin
Side effects include:
Inability to detect pain to
prevent serious or permanent
injury from occurring
Physical and psychological
dependence
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Anabolic Steroids
Athletes take Anabolic steroids to:
Increase muscle mass
Increase strength
Decrease body fat
Harmful side effects include:
Organ damage (liver, kidney)
Increased cholesterol
Increased blood pressure
Increased aggression
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Prohormones
Prohormones are a type of androgenic steroid
Use of prohormones (androstenedione in particular) claim to:
Increase physical power
Decrease body fat
No scientific data to support these theories
Harmful side effects include:
Baldness
Breast enlargement (in males)
Aggression and violent behaviour
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Human Growth Hormone
Synthetic preparations of the Human growth hormone (HGH)
is used to achieve:
Increased muscle mass
Limited weight gain
Improved aerobic endurance
Health risks include:
Heart problems
Excessive growth of hands and feet
Dangerous enlargement of organs (heart, kidneys, liver)
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Erythropoietin
Erythropoietin (EPO) used by some athletes
competing in endurance sports
Shown to cause increase in levels of hemoglobin
Allows more oxygen to be carried to tissues
Higher red-cell count causes heart to work harder
Increases risk of cardiac fatigue and heart failure
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This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Restricted Pharmacological Substances
include:
Alcohol
Marijuana
Local anaesthetics
Corticosteroids
Beta blockers
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Alcohol
Causes:
Sedative effects
Confusion
Lessen reaction time
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This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Marijuana
Causes:
Affects psychomotor function
Lowers reaction time
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This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Local Anaesthetics
Causes: Block pain
Further injury can result
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This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Corticosteroids
Restricted pharmacological substances include:
Corticosteroids:
Used to open airways
Can be toxic
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Beta blockers
Causes:
Can cause low blood pressure
Disrupts sleep patterns
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Physiological Aids
Physiological methods include:
Blood doping
Intravenous administration of blood, red blood cells,
and related blood products:
Raises the blood’s oxygen carrying capacity
Increases cardiac output
Decreases lactate levels
Improves sweating response
Drug masking
Certain drugs are used to reduce the presence of banned
substances
Includes agents that dilute concentration in:
Bloodstream
Diuretics
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Drug Testing
Ensures an even playing field
Test are performed randomly
Performed year around
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
Ethical Issues
What would you do?
How would your decision
impact your family, country, or
nation?
How would it impact your future?
©Thompson Educational Publishing, Inc. 2003. All material is copyright protected. It is illegal to copy any of this material.
This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.
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This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook.