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Edit Comment Close By: ph.ohood (28 month(s) ago) i work on ppt & it will be great if i us ur as arefrance Saving..... Post Reply Close Saving..... Edit Comment Close By: ph.ohood (28 month(s) ago) VERY GOOD PPT .ITS FULL WITH AMAZING INFO. Saving..... Post Reply Close Saving..... Edit Comment Close By: rsrking (29 month(s) ago) exalent work in presentation make a posible link to me to down load the presentation Than Q Saving..... Post Reply Close Saving..... Edit Comment Close By: lucillechaves (33 month(s) ago) I congratulate you for your presentation. I am a teacher in Puerto Rico. I teach classes to personal trainers for certification. I would like to show your presentation. My email address is lucille.chaves @ gmail.com. thanks Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript Joseph W. McNutt, M.D.Frisco Orthopedics and Sports Medicine: Joseph W. McNutt, M.D. Frisco Orthopedics and Sports Medicine Performance Enhancing Drugs: Performance Enhancing Drugs Performance EnhancingDrugs: Performance Enhancing Drugs Anabolic Steroids Androstenedione Human Growth Hormone Beta–2 Agonists Stimulants Beta Blockers Erythropoitin Creatine HMB Anabolic Steroids: Anabolic Steroids 1995 poll – 198 Olympic level power athletes Given following scenario: you offered a banned substance with two guarantees You will not be caught By taking the substance you will win your event Only 3 said noAnabolic Steroids: Anabolic Steroids Same poll, new scenario: The substance will allow you to win every competition you enter over the next 5 years However the substance will then kill you More than 50 % would still use the substance! This is why performance enhancing drugs remain in the spotlight of sports: This is why performance enhancing drugs remain in the spotlight of sports Anabolic Steroids: Anabolic Steroids Class of steroid hormones related to the male hormone – testosterone Increase protein synthesis within cells which results in growth of muscle Also have androgenic properties which include the development and maintenance of males characteristics Have both medical and sport performance usesAnabolic Steroids: Anabolic Steroids AS have been modified many times to maximize the anabolic effects and minimize the androgenic affects Alkylation of the 17-alpha position (oral) Esterfication of the 17-beta hydroxyl group (IM)Anabolic Steroids: Anabolic Steroids All AS possess both anabolic and androgenic properties None are absolutely selective Testosterone anabolic:androgenic ratio: 1 Nandrolone: 10 Stanozolol: 30 Anabolic effect dose dependent (300 mg per week required) Anabolic SteroidsHistory: Anabolic Steroids History 1931 – male hormone androstenone isolated 1934 – androstenone synthesized 1935 – testosterone identified and synthesized 1937 – clinical trials on humans with testosterone beganAnabolic SteroidsHistory: Anabolic Steroids History WWII – German scientist synthesized other anabolic steroids and experimented on concentration camp inmates to treat chronic wasting Also given to German soldiers hoping to increase their aggression Adolf Hitler rumored to take anabolic steroids Anabolic SteroidsHistory: Anabolic Steroids History 1940s - Soviet Union and Eastern Bloc Countries (East Germany) established steroid programs in Olympic and amateur weight lifters 1958 – Dianabol (methandrostenolone) approved in U.S. by the FDAAnabolic SteroidsHistory: Anabolic Steroids History 1972 – study showed no difference in performance enhancement in participants compared to ones given placebo Remained unchallenged for 18 years Poor study with inconsistent controls and insignificant doses 2001 – study showed clear increase in muscle mass and decrease in fat associated with high doses of anabolic steroidsAnabolic SteroidsAnabolic Effects: Anabolic Steroids Anabolic Effects Two different, but overlapping effects Anabolic – promote cell growth. Increased protein synthesis, appetite, bone remodeling and growth, and production of red blood cells Increase the size of muscle fibers (hypertrophy) leading to increase in muscle mass and strength Decrease the amount of fat in muscleAnabolic SteroidsAndrogenic Effects: Anabolic Steroids Androgenic Effects Androgenic (virilizing) - development and maintenance of male characteristics: Increased growth of pubic, beard, chest and limb hair Enlargement of vocal cords Increased libido Enlargement of clitoris Suppression of natural sex hormones Anabolic SteroidsAdverse Effects: Anabolic Steroids Adverse Effects Most side effects are dose dependent Elevated blood pressure (most common) Increase LDL cholesterol and decrease HDL Increase risk of CV disease and coronary artery disease, arrhythmias, and heart attacks (chronic use) Anabolic SteroidsAdverse Effects: Anabolic Steroids Adverse Effects Accelerate the rate of premature baldness (male and female) Acne – stimulates the sebaceous glands Liver damage (cancer) – increased demand on liver as oral steroids are changed (increase bioavailability and stability)Anabolic SteroidsAdverse Effects: Anabolic Steroids Adverse Effects Tendon rupture has been linked to AS Stiffer and less elastic tendon No consistent AS –induced ultrastructural or biochemical alterations Probably tendon does not adapt as fast (weak linkAnabolic SteroidsGender Specific Effects: Anabolic Steroids Gender Specific Effects Gynecomastia – development of breast tissue in males Conversion of testosterone to estrogen by an aromatase enzymeAnabolic SteroidsGender Specific Effects: Anabolic Steroids Gender Specific Effects Temporary infertility (decreased production of sperm) Testicular atrophy (caused by decrease levels in natural testosterone)Anabolic SteroidsFemale-Specific Effects: Anabolic Steroids Female-Specific Effects Increase in body hair Male-pattern baldness Deepening of voice (permanent) Enlarged clitoris (permanent) Temporary decrease in in menstrual cycle Affect fetal development during pregnancy Anabolic SteroidsAdolescent Effects: Anabolic Steroids Adolescent Effects Stunted growth – Premature growth plate shut down as a result of increased levels of estrogen Premature sexual development Anabolic steroid use in adolescence has been correlated with poorer attitudes related to healthAnabolic SteroidsAdverse Effects: Anabolic Steroids Adverse Effects Risk of mortality among chronic AS users repoted to be 4.6 times higher than non-AS users Weekly doses of 600 mg ot testosterone or its equivalent for cycles lasting less than 12 weeks appear to cause few side effects during scientific studies Rule: bigger the dose, the bigger the muscle, the bigger the problem Anabolic SteroidsBehavioral Effects: Anabolic Steroids Behavioral Effects Controversial Mood swings Aggression (roid rage) Mania Depression Withdrawal DependenceAnabolic SteroidsBiochemical Mechanisms: Anabolic Steroids Biochemical Mechanisms Effect of AS on muscle mass is caused in at least two ways: Increase the production of proteins Reduce recovery time by blocking the effects of cortisol (promote the breakdown of muscles) AS affect the number of cells that develop into fat storage cells by favoring cellular differentiation into muscle cells Anabolic SteroidsBiochemical Mechanisms: Anabolic Steroids Biochemical Mechanisms Steroid hormones mainly interact with cells by binding to proteins called steroid receptors After binding, proteins move into the cell nucleus and can alter the expression of genes or activate processes in other parts of the cellAnabolic SteroidsBiochemical Mechanisms: Anabolic Steroids Biochemical Mechanisms Receptors involved with AS are called Androgen receptors Different types of AS bind with different affinities depending on their chemical structure This determines the characteristic effects of the AS (anabolic vs androgenic) The human receptor bound to testosteroneAnabolic SteroidsMedical Uses: Anabolic Steroids Medical Uses Bone marrow stimulation – aplastic anemia Growth stimulation – use GH now Appetite stimulate – AIDS, cancer Induction of male puberty – extreme delay Reversible male contraceptive - future Hormone replacement therapy (men) Gender dysmorphia - psyciatricAnabolic SteroidsNon-medical use and abuse: Anabolic Steroids Non-medical use and abuse Extremely difficult to determine what percentage of use in the population Usually middle class, heterosexual men with a median age of 25 2006 study – 78% noncompetitive bodybuilders and non-athletes (cosmetic) 13% reported unsafe injection practices (needle sharing)Anabolic SteroidsNon-medical use and abuse: Anabolic Steroids Non-medical use and abuse Users often stereo-typed as uneducated or “muscle heads” 1998 study showed steroid users to be the most educated drug users out of all users of controlled substances Research their product more than any other groupAnabolic SteroidsAdministration: Anabolic Steroids Administration 3 common forms of AS administration: Oral – most convenient (dangerous - liver) Injectable – intramusclar not intravenous (HIV and Hepatitis) Transdermal – self adhesive skin patches Anabolic SteroidsMethods of Administration: Anabolic Steroids Methods of Administration Athletes who take AS do so typically during the active years of the careers They combine multiple steroid forms (oral and injectable), a practice called “stacking” The drug dosage is progressively increased (“pyramiding”) during a 4 to 18 week cycle, including a drug-free period between drug regimens (4-6 weeks). The drug quantity far exceeds the recommended medical dose (200X) The athlete then progressively reduces the drug dosage in the months prior to competition (to avoid detection) Anabolic SteroidsMethods of Administration: Anabolic Steroids Methods of Administration The cycling of steroids coincides with competition Many athletes use the training model – “Periodization” An athlete with a yearly training program (macrocycle) subdivides the year into phases called mesocycles (3 months) As competition nears, training volume gradually decreases while training intensity increases Steroid use coincides with the mesocycles, with the goal of achieving maximum strength and size at competitionOral Anabolic Steroids: Oral Anabolic Steroids 17-alpha methyl testosterone (Android) 17-alpha ethyl testosterone (Maxibolin) 1-methyl testosterone (Primobolan) Androstenediol (“Andro” food supplements) Androstenedione Dihydroepiandrosterone (DHEA)Injectable Anabolic Steroids: Injectable Anabolic Steroids 19-nortesterone ester derivitives (Durabolin) Testosterone ester derivatives (Oreton) Testosterone cypionate derivatives (Virilon) Boldenone Stanozolol (Winstrol) oral form as well Anabolic SteroidsMinimization of Side Effects: Anabolic Steroids Minimization of Side Effects Several techniques to minimize side effects both during cycles and post cycle Increase CV exercise to counter act effects on left ventricle Estrogen receptor modulators to reduce effect of aromatisation of steroid hormones (tamoxifen) reduce gynecomastiaAnabolic SteroidsPost Cycle Therapy: Anabolic Steroids Post Cycle Therapy “PCT” – takes place after each cycle to combat the natural testosterone suppression and restore proper function of numerous glands Typically consists of a combination of the following drugs: Clomiphene or tamoxifen (Primary PCT drug) Anastrozole – aromatase inhibitor HCG – restore hormonal balanceAnabolic SteroidsPost Cycle Therapy: Anabolic Steroids Post Cycle Therapy Finasteride (Propecia) – reduces the conversion of testosterone to DHT (high rate of alopecia) The drug is useless in cases in which the steroid is not converted into a more androgenic derivativeAnabolic SteroidsLegal Status: Anabolic Steroids Legal Status Varies from country to country U.S. - Schedule III controlled substance (requires prescription, possession without Rx. federal crime punishable up to 7 yrs) Canada – Schedule IV (obtaining or selling punishable for up to 18 mo., possession not punishable Also illegal without Rx. in Australia, Argentina, Brazil and Portugal Legal in Mexico and Thailand Anabolic SteroidsU. S. Legislation on AS: Anabolic Steroids U. S. Legislation on AS Interest and debate after 1988 Summer Olympics in Seoul following controversy of Ben Johnson AS added to Schedule III of the Controlled Substances Act in the Anabolic Control Act of 1990 Prohormones or “Designer Steroids” not included (Androstenedione) Anabolic SteroidsProhormones: Anabolic Steroids Prohormones In 1994 , the Dietary Supplement Health and Education Act was signed into law. This act classified substances derived from natural sources as food supplements and made many drugs such as prohormones available over the counter. Thus these substances are not regulated under the same rules and regulations by the FDA. (Loop hole) This can result in the dosages and actual quality of these substances to be in question as they are sold to the consumer Amended in 2004 (Androstenedione)Anabolic SteroidsStatus in Sports: Anabolic Steroids Status in Sports AS are banned by all major sporting bodies: IOC NBA NHL NFL MLB NCAA Anabolic SteroidsStatus in Sports: Anabolic Steroids Status in Sports Testing in Texas high schools to start this year (UIL) Expensive Jurisprudence Normal T:ET ratio 1.3:1 1 in 1000 men ratio of 4:1 Positive test result 6:1Anabolic SteroidsStatus in Sports: Anabolic Steroids Status in Sports * For testosterone the definition of positive depends on an adverse analytical finding (positive result) based on any reliable analytical method (e.g., IRMS,GCMS, CIR) which shows that the testosterone is of exogenous origin, or if the ratio of the total concentration of testosterone to that of epitestosterone in the urine is greater than 6:1, unless there is evidence that this ratio is due to a physiological or pathological condition. Anabolic SteroidsIllegal Trade: Anabolic Steroids Illegal Trade The majority of AS are obtained illegally through black market trade Usually manufactured in other countries and smuggled across borders Smuggling usually done in conjunction with other illegal drugs Organized crime is involvedAnabolic SteroidsCounterfeit Drugs: Anabolic Steroids Counterfeit Drugs Significant health hazard Computer and scanning technology as made it to copy labels Product could contain anything (vegetable oil to toxic substances) Users have died of injecting unknown substances in their body Products also diluted to maximize profitsAnabolic SteroidsProduction and Distribution: Anabolic Steroids Production and Distribution AS are either manufactured by legitimate pharmaceutical companies or under ground laboratories In the 1990’s most U.S. producers stopped making and marketing AS Eastern Europe still produce AS in quantity (most medical grade AS sold illegally in North America) Many illegal AS are veterinary grade (produced and handled in cruder and less sterile fashion)Anabolic SteroidsProduction and Distribution): Anabolic Steroids Production and Distribution) AS can be obtained from several sources Sold at gyms and competitions Illegal drug dealers Mail order (magazines) Internet (websites posing as oversea pharmacies)Androstenedione: Androstenedione Made famous by Mark McGuire during historic 1998 chase for single season record of home runs Immediate precursor to testosterone (prohormone) Marketed to raise testosterone levels AndrostenedioneBasic Science: Androstenedione Basic Science Concept of how “Andro” works is based on knowledge of the effectiveness of testosterone as an ergogenic aid Postulated that the higher the concentration of “andro” than the more that is converted to testosterone (debated) Majority of studies have shown no increase in testosterone levels Significant increase in estrogen levels (not marketed)AndrostenedionePerformance Studies: Androstenedione Performance Studies No studies have shown any significant increase in lean body mass or strength increase No significant improvement in athletic performance has been shownAndrostenedioneSide Effects: Androstenedione Side Effects Similar to AS Decrease HDL Increase estrogen levels (gynecomastia)AndrostenedioneTesting and Policy: Androstenedione Testing and Policy Was availble over-the-counter until Anabolic Steroid Act amended in 2004 Banned by IOC, NCAA, NBA, NFL, and MLB Currently listed as a Schedule III controled substanceHuman Growth Hormone: Human Growth Hormone Produced in the anterior lobe of the pituitary gland Can be made synthetically via recombinant DNA technology Accelerates linear growth in the skeletally immature Increases body weight and muscle mass in both the mature and the skeletally immature Human Growth HormoneBasic Science: Human Growth Hormone Basic Science 191-residue, 22kDa peptide hormone Release regulated by GHRH, sleep, exercise, L-dopa, and arginie Studies show administration of hGH leads to muscle hypertrophy but not increased strengthHuman Growth HormonePerformance Studies: Human Growth Hormone Performance Studies Little research has been done with hGH supplementation Most studies deal with endocrine dysfunction Increase in lean body mass but no increase in strength or performance Human Growth HormoneSide Effects: Human Growth Hormone Side Effects Insulin resistance (diabetes) Increased serum cholesterol and triglycerides Cardiac enlargement Hypogonadism (testicular shrinkage) Acromegaly (abnormal enlargement of appendages) Muscles may be myopathic with long term useHuman Growth HormoneTesting and Policy: Human Growth Hormone Testing and Policy Available legally only through physician Rx Banned by IOC but not officially tested Testing not available in professional sports in the USBeta-2 Agonists: Beta-2 Agonists Clenbuterol is another drug with Anabolic effects, but not in the steroid family It is a beta-2 adrenergic agonist approved for the treatment of asthma Brand names include Clenasma, Monores, Novegan, Prontovent, and Spirovent It promotes protein synthesis and increases lean body mass as well as its medicinal effect of opening constricted airways Bodybuilders switch to the drug prior to competition to avoid detection and to achieve “cut” look Beta-2-Agonists: Beta-2-Agonists Clenbuterol is not approved for human use in the United States Side effects can include muscle tremor, agitation, palpitations, muscle cramps, rapid heart rate, and headache No data exist of its effectiveness or safety in long term use. Not justified or recommended for use as an ergogenic aid.Stimulants: Stimulants Caffeine Nicotine Ephedrine AmphetaminesCaffeine: Caffeine Most widely available ergogenic substances Found in coffee, tea, chocolate, soft drinks,prescription drugs, and over the counter drugs (No Doz, Vivarin, Excedrin, Midol) Central Nervous System stimulus Delayed onset of fatigue Increased metabolism of free fatty acids for energy (spares glycogen stores)Caffeine Dosage: Caffeine Dosage Cup of coffee – 100 mg (small ergogenic effect) Soft drinks – 70 mg Over the counter stimulant drugs – 200 mg Any combination that results in a level of 800 mg is detectable by current drug tests CaffeineAdverse Effects: Caffeine Adverse Effects Diuretic – can result in dehydration Diminished muscular strength Diminished endurance Increased risk of heat-related injury or sicknessNicotine: Nicotine Widely available Smokeless tobacco (dip, snuff) or cigarettes Any benefit from the stimulant effect is more than outweighed by the health risks: lung cancer, oral cancer, emphysema, birth defectsEphedrine: Ephedrine Chemical found in the plant genus Ephedra Contained in many nonprescription drugs, foods, and nutritional supplements (greenies) Used specifically to attempt to reduce fatigue and to enhance mental alertness Herb teas, Ginseng, gingko, and non prescription cold medicinesEphedrineSide Effects: Ephedrine Side Effects With recent death of NFL lineman, this class of drugs has come under scrutiny Anxiety, ventricular dysrythmias (death) and hypertension Possible relationship with heat strokeAmphetamines: Amphetamines Most potent ergogenic drugs in the stimulant category Increase cardiac output and metabolism of free fatty acids CNS stimulation: increased aggression, increased mental alertness, decreased perception of fatigueAmphetamines Side Effects: Amphetamines Side Effects Illegal (methamphetamines – home labs) Heat-related injuries: increased metabolic activity and altered cardiovascular cooling Addiction, withdraw syndrome, depression, marked reduction of athletic performanceStimulantsTesting and Policy: Stimulants Testing and Policy Several amphetamines and stimulants available over the counter Most classes banned by the IOC Several forms banned in American professional sports NFL recently banned ephedrineBeta Blockers: Beta Blockers Propanolol Compounds that slow the heart rate and lower blood pressure Little ergonomic potential except in sports such as shooting, archery, and biathalon where fine motor control and relief of “jitters” are critical (steady hand) These are prohibited in these sports (IOC)Erythropoitin and Blood Doping: Erythropoitin and Blood Doping Use of exogenous erythropoietin (EPO) and/or blood transfusions to increase blood count (hemoglobin/hematocrit) This improves the availability of oxygen to the exercising muscle. Improves aerobic capacity and muscle endurance Detection is difficult and expensive Popular in the cyclists and other aerobic athletes Erythropoitin and Blood DopingBasic Science: Erythropoitin and Blood Doping Basic Science EPO – hormone naturally produced in the kidney Can be created synthetically via recombinant DNA technology Once released it stimulates an increase in hemoglobin Increases oxygen carrying ability of bloodErythropoitin and Blood DopingAdverse Effects: Erythropoitin and Blood Doping Adverse Effects Increases risk of hyperviscosity syndrome (thick blood) Increased risk of stroke, heart failure, and even death Increased risk of dehydration with exercise HIV or HBV infection from blood transfusions 5 Dutch cyclists died in 1987 in first year release of EPO Between 1997 and 2000, 18 cyclists have died of stroke, MI, or Pulmonary embolism Erythropoitin and Blood DopingTesting and Policy: Erythropoitin and Blood Doping Testing and Policy Only available with physician’s Rx Not legal in any sport Gas and liquid chromatography used for screening Remains difficult to detect Some governing bodies use an upper limit of hemoglobin as their guideCreatine: Creatine Since its introduction in 1992, it has become the most popular nutritional supplement on the market Discovered by Chevreul in 1832 First reported use by elite athletes occurred during the 1992 Barcelona Olympics (British track and field athletes) Creatine: Creatine Several studies show up to 50 % usage rate in male college athletes Recent survey of NFL trainers and team physicians: All teams had players actively taking creatine Average use 33% and reports as high as 90%CreatineBasic Science: Creatine Basic Science Naturally occuring compound made from amino acids: glycine, arginie, and methionie Primarily synthesized in the liver, pancreas, and kidney 95% stored in skeletal muscle Exogenous sources: fresh fish and meat 2 g daily turnoverCreatine Basic Science: Creatine Basic Science Provides energy during short-duration maximal bouts of anaerobic exercises Phosphorylated form provides a phosphorous atom to re-synthesize ATPCreatinePerformance Studies: Creatine Performance Studies Weight lifters – single rep max up 20 -30% Cyclists – help maintain muscular force and power outputs Swimming – mixed results (complex mechanics?) Track and field – 1–2 % decrease in times Body composition – increase weight and lean body mass (1-2 kg per short term cycle) Summary – effective for simple, short-duration, maxi-effort anaerobic eventsCreatineSide Effects: Creatine Side Effects 30% no response rate May lead to increase in muscle cramping (dehydration?) As in all supplements – lack of quality control Otherwise short term use safe , long term use unknown (further studies needed)CreatineTesting and Policy: Creatine Testing and Policy Available over the counter in several nutritional supplements Not tested for or banned by any major athletic organization NCAA does not allow its member teams to provide creatine to their players Many teams discourage use in season (cramps)HMB: HMB Beta-hydroxy-beta-methylbutyrate Leucine metabolite that has gained popularity as an “anticatabolic” Marketed to suppress protein breakdown in recovery phase after workoutHMBBasic Science: HMB Basic Science Mechanism not truly known but several theories: Increase testosterone levels (similar to AAS) Delay anaerobic metabolism Prevent exercise-induced muscle damage HMBPerformance Studies: HMB Performance Studies Some evidence that HMB may act to suppress protein breakdown Little evidence in the literature to support any ergogenic advantageHMBSide Effects: HMB Side Effects No effect on blood, liver, or kidney function No changes seen in urinalysis Lowered LDL, total cholesterol, and systolic blood pressure Thus HMB appears to be safe and may be cardioprotectiveHMBTesting and Policy: HMB Testing and Policy Available in many over-the-counter supplements Not banned by any sporting organization to dateWhat can we do?: What can we do? Education - wealth of information out there (internet, books, magazines) Your young athlete knows more about it than you (and they don’t know enough)Proper Training: Proper Training Sleep Hydration Stretching Nutrition (timing, whey protein, creatine) Proper form and technique (especially in skeletally immature athletes) Goals Thank You!: Thank You! You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.