Esteroides
Páginas: 4 (753 palabras)
Publicado: 12 de junio de 2012
Ergogenic Aids
Ergogenic Aids Outline
Application of a __nutrtional_____, ___physical___, ___mechanical____,, ____pharmacological___, or _psychological_ procedure or aid to improvephysical work capacity or athletic performance.
Problems
Claims without _scientific____ evidence.
Research ___Design_____
Research __interpretation______
Is it ___safe_____?
Isit __legal_____ and ___ethical____?
Problems: Research Design
Individual physiological and psychological ____variations____ among people
* Responder/ non-responder
May notbe able to study it exactly as athlete’s use it
* Lab tests unable to detect small differences
* Measurement error, individual differences, day to day variability
* May not be able to study itexactly as athlete’s use it
Developing foolproof research protocols
__placebo___
_doublemind____
Research Design Problems
Recent meta-analysis (closer look atresearch studies) on dietary supplements effect on muscle growth
250 candidate supplements
48 “good” studies
Six supplements supported by more than 1 study
Research InterpretationProblems
Physiological measures may improve but _performance____ may not
Worked on a _regular__ person but will it work with an __elite_ athlete
Dose-response: x dose = y response, but 2xdose doesn’t necessarily mean 2y response
Problems
Is it safe?
Is it legal and ethical?
Amphetamines
Sympathomimetic Amines
__Central Nervous System ___ StimulantsAmphetamines, ephedrin, pseudephedrine
Increase __blood pressure__, _heart rate___, __cardiac output___, breathing rate, metabolism, and blood glucose
Banned by most sports organizationsProposed Benefits
Claims
Increase concentration, alertness, wakefulness, and capacity to perform work by depressing the sensation of muscle fatigue.
The Effects
Effects...
Ergogenic Aids Outline
Application of a __nutrtional_____, ___physical___, ___mechanical____,, ____pharmacological___, or _psychological_ procedure or aid to improvephysical work capacity or athletic performance.
Problems
Claims without _scientific____ evidence.
Research ___Design_____
Research __interpretation______
Is it ___safe_____?
Isit __legal_____ and ___ethical____?
Problems: Research Design
Individual physiological and psychological ____variations____ among people
* Responder/ non-responder
May notbe able to study it exactly as athlete’s use it
* Lab tests unable to detect small differences
* Measurement error, individual differences, day to day variability
* May not be able to study itexactly as athlete’s use it
Developing foolproof research protocols
__placebo___
_doublemind____
Research Design Problems
Recent meta-analysis (closer look atresearch studies) on dietary supplements effect on muscle growth
250 candidate supplements
48 “good” studies
Six supplements supported by more than 1 study
Research InterpretationProblems
Physiological measures may improve but _performance____ may not
Worked on a _regular__ person but will it work with an __elite_ athlete
Dose-response: x dose = y response, but 2xdose doesn’t necessarily mean 2y response
Problems
Is it safe?
Is it legal and ethical?
Amphetamines
Sympathomimetic Amines
__Central Nervous System ___ StimulantsAmphetamines, ephedrin, pseudephedrine
Increase __blood pressure__, _heart rate___, __cardiac output___, breathing rate, metabolism, and blood glucose
Banned by most sports organizationsProposed Benefits
Claims
Increase concentration, alertness, wakefulness, and capacity to perform work by depressing the sensation of muscle fatigue.
The Effects
Effects...
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