Supplements Update 2010

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Cayuga Sports Medicine Conference -

Supplements Update 2010

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

Background

 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…

Goals & Objectives

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!

Historical Perspective

Ancient History

 Aztecs

 Chinese

 Greeks

Ergogenic

 Ergon

 gennan

20th Century & Supplements

Brown-Sequard in 1889

1950s Dr. Ziegler

 Methandrostenolone

IOC

 1968 1st list of banned substances

 1976 Montreal

Olympic Games

The Supplement Industry

 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

The Supplement Industry

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.

Three Questions

Is it effective?

Is it safe?

Is it legal?

Is it Legal?

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$

Is it Legal? Selling One’s Soul

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

Supplements & Triathletes

Ground rules

Specific supplements

Proven Performance effects

Side effects

USAT follows USADA prohibited list

Banned Substance 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

Banned Substance List

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

Banned Substance List

S5 - Diuretics and Masking

Agents

Masking Agents

Plasma Expanders -

Albumin, Dextran,

Glycerol (supplements banned)

Alpha-reductase inhibitors - Finasteride

 Epitestosterone

Diuretics

Furosemide

Spironolactone

Banned Substance List

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

Banned Substance List

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

Banned Substance List

S7 - Narcotics

 Fentanyl, Morphine

S8 - Cannabinoids

S9 - Glucocorticosteroids

PO, IV, PR, IM -

(DOE/TUE)

Topical

P1 - ETOH

P2 - Beta-Blockers

Commonly Used Banned Substances

Erythropoietin & Blood Doping

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

Epo & Doping - Physiology

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 - Proven Effects

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

Epo & Doping - Adverse Effects

Because of increased

RBC volume - causes increased blood viscosity

HTN

Seizures

DVTs, PEs

Stroke

Case report - cerebral sinus thrombosis

Epo & Doping - Summary

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

Ephedra

 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

Ephedra -Mechanism of Action

Stimulant that mimics effect

Norepi & Epi

Increases fat burning, Heart rate

Thermogenic effect

 Increases resting metabolism, calorie expenditure

 Causes appetite suppression

Ephedra - Proven Effects

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

Ephedra - Adverse Effects

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

Ephedra - Summary

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

Legal Ergogenic Aids

Creatine

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

Creatine - Proven Effects

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)

Creatine - What about longer distances?

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

Creatine - Adverse Effects

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

Creatine - Adverse Effects

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

Creatine - Summary

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

HMB

ß-hydroxy-ß-methylbutyrate

Metabolite of Leucine

Found in catfish, citrus fruit, & breast milk

Believed to preserve

LBM during fat loss

Anti-catabolic

1998 Sales 50-60

Million Dollars

Proven Recovery Effects

(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

Proven Performance Effects

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

Adverse Effects

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

Summary of HMB

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

Caffeine

 #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

Caffeine - Mechanism of Action

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

Caffeine - Proven Effects

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

Caffeine - Adverse Effects

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

Caffeine - Summary

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…

Beta Alanine

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

Beta Alanine - Ergogenic Effects

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

Beta Alanine - Summary

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

Nitrous Oxide / Arginine

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

NO / Arginine - Ergogenic

Effects

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

NO / Arginine - Summary

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 Ergogenic Aids

Carbohydrates

 Macronutrient

 Aids muscle recovery

& glycogen stores

 Source of instant energy as well

 Insulin spike

 6-8% CHO solution

 8 T in 1 Gallon

Carbohydrates - Proven Effects

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

Carbohydrates - Summary

Proven performance effects

No adverse side effects

Not Banned

But is there something better?…

PRO vs. CHO

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

Protein Quality

 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.

Protein Quality

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

Carbohydrate + Protein - Proven Effects

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

CHO + PRO - Proven Effects

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)

PRO + CHO - BCAAs

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

Carbohydrate + Protein - Summary

 Proven Benefits

 Safe

 4-2:1 Ratio

 During & After

 Not BANNED

Case #1…

 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?…

Case #1…Revisited

 17yo male HS athlete

 3 Months later

 Off D-Bol

 Test = WNL

 Estradial = WNL

 HDL = 42

 LDL = 104

 ECHO - WNL

 Weight now = 163

Scenario…

19yo patient comes to your office…

Wants to start taking supplement X.

What do you say?…

Supplement Pyramid -

What should I take?

Solid Foundation

Base - T / N / R

Ask the 3 ?s

2nd Tier

 MVI / Ca++/Vit D

 Whey Protein/P+C

 Fish Oil**

3rd Tier

Wrapping it up

Educate

Open mind

Supplement

Pyramid

Sports specificity

Caveat Emptor

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

On-line Resources for help

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

Thank You

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