By Lee A. Mancini, MD, CSCS*D, CSN
Assistant Professor UMass Medical School
Faculty UMass Sports Medicine Fellowship
Certified Strength and Conditioning Specialist with Distinction
Certified Sports Nutritionist
Former D-I athlete / 1999 Boston Marathon
Numerous Sprint / Olympic Distance Tris
15 years as Certified Sports Nutritionist
15 years as Certified Strength & Conditioning
Specialist
UMass Sports Medicine Physician
Sports Nutrition consultant
Boston Red Sox Organization
Lowel Devils (NJ AHL affiliate)
Worcester Ice Cats (STL Blues AHL)
Holy Cross
UMass Amherst
Assumption College
Nichols College
Lived in Ithaca my entire life - graduated from Lansing High School…
1.
2.
3.
4.
5.
Review a brief history of supplements
Discuss how to examine supplement claims
Review some common supplements
Examine supplements specific for triathletes & endurance athletes
Ask Questions!
Ancient History
Aztecs
Chinese
Greeks
Ergogenic
Ergon
gennan
Brown-Sequard in 1889
1950s Dr. Ziegler
Methandrostenolone
IOC
1968 1st list of banned substances
1976 Montreal
Olympic Games
Nutrition Labeling and
Education Act (NLEA)
11/9/1990
Dietary Supplement Health and Education Act
(DSHEA) 10/25/1994
Multibillion dollar industry
1994 = 8.3 billion
1999 = 14 billion
2009 = 23.7 billion
2002 Health & Diet
Survey
73% - 18 and older had used in past year
2006 J of Adolescent
Health
79% used in past year
48% used in past month
Creatine - 8% vs. 2%
Weight Loss - 7% vs. 15%
Timbo, BB, Ross, MP, McCarthy, PV, Lin, CT. (2006) Dietary supplements in a national survey: Prevalence of use and reports of adverse events. Journal of American Dietetic Association, 106 (12), 1966-74.
Governing bodies have banned substance lists
IOC, NCAA, UCI, USAC, WADA,
MIAA
Triathletes - USAT falls under USADA
Law enforcement penalties
Possession
Federal offense
1 year and 1,000$
Selling
Federal felony
5 years and 250,000$
Sports Psychology…1987
Take a banned substance guarantee gold medal - and not get caught
195 of 198 said YES
Take a banned substance - top athlete for 5 years - and then die in year 6
Over 50% said YES
Ground rules
Specific supplements
Proven Performance effects
Side effects
USAT follows USADA prohibited list
S1 - AAS
Nandrolone
Clenbuterol (asthma in other countries)
S2 - hormones and related substances
EPO, hGH, IGF-1, hCG, insulin, & corticotrophins
PRP given IM prohibited
PRP tendon injections requires Declaration of Use
DM pts - need TUE for insulin
S3 - Beta-2 Agonists -
Salbutamol (Ventolin,
ProAir, DuoNeb)
Salmeterol (Advair,
Serevent),
Others need TUE
(terbutaline)
Oral use is prohibited
S4 - Agents with Anti-
Estrogenic Activity
Aromatase inhibitors
SERMs - tamoxifen
Other Anti-Es clomiphene
S5 - Diuretics and Masking
Agents
Masking Agents
Plasma Expanders -
Albumin, Dextran,
Glycerol (supplements banned)
Alpha-reductase inhibitors - Finasteride
Epitestosterone
Diuretics
Furosemide
Spironolactone
Prohibited Methods
M1 - Enhancement of
O2 transfer
Blood doping
M2 - Chemical &
Physical Manipulation
Tampering
IV infusions (even if nonbanned substance unless in hospital setting)
M3 - Gene doping
Prohibited Substances IN
Competition
S6 - stimulants
Pemoline, Prolintane
Ephedrine and methylephedrine - U >
10mcg/ml
Pseudophedrine - U >
150mcg/ml (D/C >24hrs prior)
Athletes w/ ADD/ADHD
Need TUE
Not Prohibited
Caffeine
S7 - Narcotics
Fentanyl, Morphine
S8 - Cannabinoids
S9 - Glucocorticosteroids
PO, IV, PR, IM -
(DOE/TUE)
Topical
P1 - ETOH
P2 - Beta-Blockers
Natural hormone secreted by the kidney formation RBCs r-HuEPO,Darbopoetin
(Aranesp)
Blood removed from athlete
1984 - 10 U.S. cyclists
Hemopure (based on bovine
Hgb)
2001 Giro d’Italia cycling marathon
Enhances erythropoiesis by stim proerythroblasts formation
Endurance Exercise
RBC mass and plasma volume increases
Hct & Hgb decrease due to expanded plasma volume
By increasing Hgb & Hct
increases O2 carrying capacity
decreases ratings of perceived exertion increases VO2 Max
EPO for 26 days at 50 IU/kg led to
7% increase in power
9% increase VO2 Max
Increase Hct
After 6 weeks of EPO - 17% increase in cycling time to exhaustion
IV r-HuEPO works in days
Because of increased
RBC volume - causes increased blood viscosity
HTN
Seizures
DVTs, PEs
Stroke
Case report - cerebral sinus thrombosis
Proven Performance effects for Endurance
Athletes
Significant Risks
Banned by IOC in 1990
Banned by USADA
Banned by UCI
UCI testing since 1997
Hct 50 for men, 47 for women
UCI Certificate
Chinese herb, 5000yrs
Comes from Ephedra sinica plant
Ma huang
Known to relieve respiratory ailments
Mixed into herbal teas
Sale of it alone is prohibited
Make methamphetamine
Stimulant that mimics effect
Norepi & Epi
Increases fat burning, Heart rate
Thermogenic effect
Increases resting metabolism, calorie expenditure
Causes appetite suppression
Over 52 studies in literature (Shekelle et al.,
2003)
All studies were less than 6 months
Average 1.0kg per month greater than placebo
Doses ranged from 25 to 120mg per day
Dose related effect
Wide variety of side effects
Heart palps, HTN, anxiety, hyperthermia, headaches, & cardiac arrhythmias
Effects all stopped 48hrs after discontinuing
FDA 800 adverse incidents -
>90% exceeded recommended doses
FDA 284 serious adverse events
- 5 deaths, 5 heart attacks, 11 strokes, & 4 seizures
50% of these people < 30 yo
Proven effect on fat loss
0.82% all sales,
64% adverse
4/12/04 Government bans Ephedra
2006 US Court of
Appeals upheld
“Legal Ephedra” bitter orange
UCI - U > 10mcg/ml
2/17/2003
1832 Chevreul - Greek word flesh
Made from Arg, Gly, & Meth,
95% - skeletal muscle
CrP + ADP => ATP + Cr, enz =
Creatine kinase
Intense exercise ATP used first 10 secs
Also buffers muscle pH delays muscle fatigue
Over 150 studies done, 93% in the past ten years
Overwhelming evidence Meta-analysis
(Nissen et al., 2003)
1.09% increase in strength per week
Increase 0.36% LBM per week (2.2 kg in 6 weeks)
15 lbs added to 1RM Bench Press
(6 weeks)
25 lbs added to 1RM Back Squat (6 weeks)
61 Studies - 45 found to improve endurance performance (running, swimming, rowing, & biking)
Ergogenic effect on repeated high intensity sprints (lasting 30 seconds to 3 minutes)
Events lasting longer than 3 minutes - 25 studies - 8 found no improvement, 17 did
Improved times in 5M and
15M sprints but slower times in 6K runs (by 26 seconds)
Long distance endurance events - additional muscle mass and water retention may slow athletes down
KIDNEY ISSUES?
Because creatinine is breakdown product of creatine concern over kidney function
(Crowe et al., 2003) Four year study, NCAA 3 yr study
No significant adverse effects up to five years after ingesting creatine
(Dempsey et al., 2002)
(Eur J of App Physiol 2008 -
Gualano et al) Double Blind,
Randomized - 3 months
BOTTOM LINE - NO evidence on any effect on kidney function
Main reported side effect = GI distress
Case reports of muscle cramping,
No studies showed increased cramping
No effect on body fluid balance or heat regulation
(2009 - meta-anlysis J Ath Train -
Lopez et al.
(Br J Sports Med - 2008 - Dalbo et al)
BOTTOM LINE - No increased risk of dehydration, cramping, or issues with sweating or heat regulation
Most widely used supplement
30% Pro teams supply
50% Male Div 1 use
14% High School
75% High School informed from who?
Proven Strength & Anaerobic effects
GI & Cramping side effects
No effect on kidney function
For Triathletes not very beneficial
NOT BANNED by IOC, UCI, WADA,
USAC
(Nissen et al., 1997) - Exercise induced muscle damage after heavy resistance training
1.5g/day or 3.0g/day - decreased protein breakdown
Increased muscle recovery
(Knitter et al., 2000) - 3g/day HMB for 6 weeks
20K run - monitored LDH, CPK levels
Statistically significant - LDH & CPK levels post exercise in HMB group
Meta-analysis (Nissen et al., 2003) of 9 studies
0.28% increase LBM per week (6-8 weeks)
1.40% increase in 1RM strength per week
(Nissen et al., 1996) - 1.5g/day and 3.0g/day for
6 weeks, increased strength
(Kreider, 1999) - 3g/day for 8 weeks
Increases in LBM, decreases fat mass
Increases in upper and lower body 1RM strength
(Lamboley, 2007 - Int J Sport Nutr Exerc
Metab) - Aerobic training 3/wk x 5 wks
(3g/day) - Inc VO2Max 13.4% vs. 8.4% placebo, no change in body comp
(Watson, 2009 - J Str Cond Res) - no side effects
3 g/day - small increases in 1RM, small decrease in fat mass, small increase in muscle mass
The Blond Bomber - Dave Draper
No reported side effects from any studies
(Juhn, 2003) - Using HMB for 8 weeks
No change renal fx, LFTs, Lipid panel
(Crowe et al., 2003) - Using HMB for 6 wks
No change in serum Test, BUN, Cr, Chol, TGs
Not Banned
Safe at the present
Increases maximal strength
Maintains LBM,
Decreases fat mass
Cost - 40$ for 200 pills
4 pills = 1 gram HMB
Servings 4 pills x 3 times/day = 12 pills daily
17 day supply
$80 per month
#1 Drug used in the world
82-92% adults use daily
Methylated xanthine alkaloid derivative
1,3,7-trimethylxanthine
Metabolized in liver p450
3 Main metabolites
Theobromine, theophylline,
Paraxanthine most potent
Structure is similar to adenosine
Binds to adenosine cell membrane receptors
Found everywhere
Stimulates CNS, increases release of
Epinephrine
Increases HR, MR, resp center output decreases perceptions of pain, & fatigue
One main effect on performance is by increasing fat oxidation - which spares muscle glycogen
Effects have been studied for 100 years
Most studies = 2-9mg/kg per day (250-
750mg)
(Costill et al., 1978) - 300mg, cycle at 80%
VO2 Max until exhaustion
90.2 minutes vs. 75.5 minutes
Increase max power in cyclists from 904
Watts to 964 Watts (also vs. placebo)
Decrease race times from marathons to short sprints lasting less than 90 seconds
(Graham, 2001)
Studies in all three components of triathlon supporting this
Anxiety, heart palpitations, trembling, and facial flushing
Dose related
Lethal half-dose of caffeine is 150-
200mg/kg bodyweight about 100cups
Tolerance to caffeine appears after 4-
5 days
Only takes 3 days of use to develop dependency and withdrawal symptoms after stopping
Mood shifts, headaches, tremors,
& fatigue - 12h to 7d
Banned 1962 IOC
Removed 1972
Urine 12mcg/ml = 9mg/kg
6-7 cups = 700-800mg
Proven effects on performance
Because of side effects at higher doses - 3-6mg/kg better
Because of tolerance & withdrawal
- better to not take daily, but prior to specific competitions
Definite benefits for triathletes
2005 IOC Removed completely from banned list
UCI, WADA…
ß-alanine is amino acid
Carnosine (ß-alanyl-L-histidine)
Enzyme carnosine synthetase
Frequent sprints
Animal protein
Supplementation can increase beta-alanine by 80%
Chemical buffer in myocytes
Delays fatigue
Most research past 3 years
2006 study by Hoffman in Nutr
Research
College football players
30 days of 4.5g/day vs. placebo
60 sec anaer power test
3 - 200 yd shuttle run
2007 study by Derave in J
Appl Physiol
4.8g/day vs. placebo
400M sprints
Knee extensions - 5 x 30 reps
2008 study by Kendrick in Amino
Acids
6.4g/day vs. placebo
10 week lifting program
Strength, LBM, Body Fat% no change
2009 study by Smith in J Int
Soc Sports Nutr
1.5g qid (6g/day) x 3 weeks, then 1.5g bid (3g/day) x 3 weeks,
22yo (46 men)
6 weeks 6 x 2:1 minute cycling
VO2 TTE,VO2peak,LBM
Building block of carnosine
Legal - not banned by any sports governing body
No documented side effects
Ergogenic effects
Increases muscle
[carnosine]
Reduces fatigue - blood pH, buffer
Some studies have also shown no improvement on performance
L-Arginine alpha-ketoglutarate
(AAKG)
Arginine is a conditionally essential AA - 60%
athletes
2 main effects
Acute - NO increase blood flow & nutritient delivery increase exercise capacity
Chronic - anabolic GH effects, protein synthesis
1989 Study by Elam in J Sports Med Phys
Fitness
5 week progresive strength program
1g arginine + 1g ornithine
Increase muscle strength/LBM
2006 Study by Campbell in Nutrition
10 men (30-50yo), 4g/day
4 days lifting/wk x 8 weeks
1RM BP, Anaer power, aerobic capacity,
Body comp, & Quad endurance
Only 1RM, Anaer power, [arg] p<0.5
2008 Study by Little in Int J Sport Nutr Exerc
Metab
Power, Muscle End, Max Str, - No change in body comp
More studies continue to show benefits
L-Arginine alpha-ketoglutarate
(AAKG)
Pre-Cursor NO
Increase protein synthesis
Increase GH levels
Increase strength/power
No documented adverse effects
BUT no evidence that it improves aerobic capacity or endurance performance
Legal - not banned
Macronutrient
Aids muscle recovery
& glycogen stores
Source of instant energy as well
Insulin spike
6-8% CHO solution
8 T in 1 Gallon
Evidence shows CHO beverages better than
H2O
Study - cyclists 70% VO2 max, improved TTE 30 minutes
2004 - Mouth wash study
(6.4% maltodextrin)
Central Drive vs. Metabolic
Drive
Aerobic endurance
What about Protein?
J Am Col Nutrition - 2004
Whey vs. CHO - 10 weeks
Whey
more strength gains more bodyfat loss less lean muscle wasting lower pre-workout cortisol levels
Greater BONE DENSITY
Whey/ Milk Proteins are more effective than Hydrolyzed Soy
Protein for stimulating Protein
Synthesis & AA deposition in muscle.
= Greater Lean Mass gains with training
= Greater Strength in long-term
J Am Coll Nutr. 2005
Apr;24(2):134S-139S.
July 2009 Study in J Appl Physiol
Whey vs. Casein vs. Soy
10g EEA mix after strength training
Men and Women - 12 weeks
Whey - More BCAAs
NON-WORKOUT
90% muscle recovery/growth vs. casein
25% more vs. soy
WORKOUT
125% more vs. casein
30% more vs. soy
Whey greater body comp changes
Whey greater strength gains
Combination of 6g EAAs and
35g CHO
10X Insulin, 3X AA, 4X Pro vs.
CHO, PLA
Studies showing superiority
VO2 Max
75% - 29% (24mins)
85% - 40% (12)
Reduced post-exercise muscle damage
CPK - 216 vs. 1318
Ready, Saunders
Study by Kreider in 2002 - placebo,
Carb, & CHO/PRO
Resistance training - 10X more insulin,
3X increase AA in skeletal muscle, 3
1/2X increase in protein synthesis in skeletal muscle
CHO - repletes glycogen stores, creates anabolic environement through insulin
PRO - increases muscle growth & decreases muscle breakdown (Rennie
& Tipton in 2000)
BCAAs - 20% AA in body
Higher amounts in animal proteins
Oxidation rises 300 to 500% during exercise
Levels drop by 25% in the 90 minutes following a workout
1999 study by Mero - showed increase
LBM, decrease BF%
30K race times 3:30 to 3:05 hrs with
BCAA supplementation vs water, and carb (Kreider 1999)
Greer et al. in 2007 in Int J Sport Nutr &
Exerc Metab - CHO, BCAA
Review by Negro (2008 J Sports Med
Phys Fit) - DOMS, Imp immune function via exer-related cytokine production
Proven Benefits
Safe
4-2:1 Ratio
During & After
Not BANNED
17yo male HS athlete
Test = 2xs NL
Estradial = 3xs NL
HDL <10
LDL = 252
10 week cycle
Went from 145 to 190
What do you do?…
17yo male HS athlete
3 Months later
Off D-Bol
Test = WNL
Estradial = WNL
HDL = 42
LDL = 104
ECHO - WNL
Weight now = 163
MVI / Ca++/Vit D
Whey Protein/P+C
Fish Oil**
One final warning
Delbeke et al., 2002
OTC Pyruvate
USAC Position Statement - 1/26/06
Warning: Any athlete who takes…does so at his or her own risk of committing a doping violation
UCI, US-ADA, WADA, or IOC
Remember , the athlete is ALWAYS responsible for what he or she puts into his or her body
1-800-233-0393
(US-ADA) www.usantidoping.org
Important Web Sites http://www1.ncaa.org/membership/ed_outreach/healthsafety/drug_testing/banned_drug_classes.pdf
NCAA site on banned substances http://www.theathlete.org/wada.htm
World Anti-Doping Agency
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