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Alternative Medicine
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Natural Supplement Delays Muscle Fatigue, Improves
Athletic Performance
Creatine Improves the Ability to Maintain Maximal Performance
Recent studies reveal that creatine supplements can
significantly increase exercise and athletic performance by delaying the
development of fatigue. Unlike anabolic steroids, creatine does not
alter muscle size and structure, but improves the ability to maintain
maximal performance.(1)
Increasing the muscle creatine content can provide
the following benefits:
- Provides a greater initial store of creatine phosphate to make
more energy immediately available at the beginning of exercise.(1)
- Greater resistance to fatigue caused by build-up of hydrogen ions
from lactic acid production.(1)
- Allows for faster recovery after exercise.(1,4)
- Speeds and enhances muscle recovery following injury.(6)
- Reduces the formation of free radicals which are a contributing
factor in the development of muscle soreness following strenuous
activity.(1)
- Suppresses acute and chronic inflammatory responses and exhibits
analgesic activity.(5)
Creatine Used by Athletes in 1992 Olympics
In two separate human studies, creatine
supplementation significantly reduced fatigue, enabling subjects to
perform for longer periods at speeds close to maximum. It is also
believed that creatine allows the muscles to recover from intense
activity much faster.(4)
Prior to the 1992 Olympic games in Barcelona, British
athletes were provided with a creatine supplement. Although the dosage
given the athletes was lower than that used in the studies, reports that
came back were highly encouraging and correlated well with laboratory
results. Many of the athletes went on to win medals. Although there is
no proof that they would not have won without the supplement, creatine
supplements are now widely used by British athletes.(1,2,4)
This small molecular weight compound, similar in size
to an amino acid, is a natural component of the human diet. Creatine is
also manufactured by the liver and kidneys from the amino acids arginine
and glycine and stored in the skeletal muscles, heart, brain,
spermatozoa and the retina of the eye. The highest concentration is in
skeletal muscle, accounting for more than 95% of the total body
pool.(1,3,4)
Natural Precursor for Rapid Regeneration of Muscle-Fueling ATP
At rest, between 60% and 90% of creatine stored in
the muscle is in the form of creatine phosphate. Creatine phosphate
fuels the process of muscle contraction through its vital role in the
creation of adenosine triphosphate (ATP), the primary compound which
converts food into energy.(1,4)
When muscles contract, ATP is broken down to ADP
(adenosine diphosphate) and immediate energy is released. Since very
small quantities of ATP are stored within the muscle cell, it must
constantly be replenished. Creatine phosphate donates its phosphate
group to ADP to rapidly regenerate ATP. When high concentrations of
creatine phosphate are present, the body can quickly release the large
amounts of ATP needed to sustain muscular contractions.(1)
Creatine phosphate is also involved in the transfer
of energy within the muscle cell. ATP, produced in the mitochondria from
the aerobic metabolism of fats and carbohydrates, must be transported to
the site of muscular contraction. Creatine and creatine phosphate
"shuttle" this energy from the mitochondria to the contractile
elements where it can be used to fuel activity.(1)
Creatine Delays Muscle Fatigue and Speeds Recovery
In addition to supplying energy, creatine phosphate
is also important in regulating the acidity of the muscle cell. Hydrogen
ions released from lactic acid formed during intense activity are
absorbed when creatine phosphate is broken down to produce ATP. This
prevents a build-up of hydrogen ions which interfere with the
contraction process and cause fatigue. This "buffering" action
allows the muscle to continue to work at a high intensity for longer
periods.(1)
Rapid regeneration of ATP by creatine phosphate also
prevents the build-up of ADP in the muscle cell. A high concentration of
ADP is the starting point for further degradation resulting in the
formation of membrane-damaging free radicals. Thus, creatine affords
some protection against damage to muscle cells following strenuous
activity.(1)
Creatine also aids in muscle recovery following
injury. Thirty patients over 60 years old suffered from muscle
hypotrophy of the lower limbs due to fracture of the thigh. Half the
patients were given creatine supplements and all patients had physical
therapy. After 20 days, the creatine group had an increase in muscle
mass of 4.4 mm; the others increased only 1.5 mm.(6)
In animal studies, creatine supplements were as
effective as phenylbutazone in suppressing acute and chronic
inflammatory responses and did not produce GI ulceration. Creatine also
exhibited analgesic activity.(5)
Who Needs Creatine Supplements?
Anyone who exercises can benefit from creatine
supplementation, from professional athletes to occasional or
three-times-a-week exercisers, to the weekend warrior or gardener, to
patients recovering in physical therapy. Increasing muscle creatine
content can provide more immediate energy, greater resistance to
fatigue, faster recovery rate and reduced formation of free radicals
which contribute to the development of muscle soreness following
strenuous exercise.(1)
The daily creatine requirement of a 160 pound man is
estimated at 2 grams per day. Dietary creatine is available in meat and
fish. Fresh, uncooked meat or fish contains approximately 4g of creatine
per kg, but this decreases significantly following storage and cooking.
The highest consumption of creatine is probably in Japan, where eating
sushi may provide up to 2-3 grams per day. In contrast, the typical
Western diet may include as little as ½ gram per day and vegetarians
don’t get any.(1-4)
Research has shown that, with regular
supplementation, the creatine content of muscle can be increased by up
to 50% in some individuals. The greatest increase is seen in those with
low muscle creatine content. Those already at the top of the range will
see minimal increases.(1)
In preliminary trials, even race horses have shown an
increase in performance and recovery when given creatine supplements.
Although creatine is not a significant component of the horse diet, it
may have a very important function in competition and help prevent
muscle problems related to acute acidosis.(4)
When supplementing with creatine, a daily dose of 2-5
grams is suggested. A recent scientific study by a major midwestern
university concluded that initial "loading" with creatine is
unnecessary. Because there is a limit to the amount of creatine that can
be taken into the muscles, continuous high doses provide no additional
benefit. Excesses are excreted in the urine.(1)
WARNING: This publication and the product
contained herein have not been approved or evaluated by the Food and
Drug Administration. This publication, and the product contained herein
are not intended to diagnose, treat, cure or prevent any disease. The
product relates to nutritional support only.
References
1. Griebe, Jan and Cotterill, "Creatine - A New Energy
Supplement", Energy Link, Vol. 2, No. 1, January, 1996.
2. Williams, Melvin H., "The Use of Nutritional Ergogenic Aids
in Sports: Is it an Ethical Issue", International Journal of
Sports Nutrition, 1994;4:120-131.
3. Balsom, Paul D., et al, "Creatine in Humans with Special
Reference to Creatine Supplementation", Sports Medicine,
1994;18(4):268-280.
4. "Creatine Supplementation for the Athlete", Equine
Veterinary Data, 1992; 13(19):319.
5. Khanna, N.K. and Madan, B.R., "Studies on the
anti-inflammatory activity of creatine", Pharmacodyn Ther,
231(2):340-350, 1978.
6. Pirola, V. , et al, "Evaluation of the Recovery of Muscular
Trophicity in Aged Patients with Femoral Fractures Treated with Creatine
Phosphate and Physiokinesitherapy", Clin-Ter., 1991 Nov.
15-30; 139(3-4):115-9.
CREATINE CAPSULES
Pharmaceutical Grade Creatine Monohydrate
Product No. 895 Fill Size: 180 tablets
Each Capsule Supplies:
Creatine Monohydrate 500 mg.
100% pure, pharmaceutical grade creatine monohydrate. Contains no animal
products.
Recommended Dosage: Take 5 capsules twice daily (5 grams) with 10-12
ounces of water or juice.
Price: $20.00
CREATINE POWDER
Pharmaceutical Grade Creatine Monohydrate
Product No. 825 Fill Size: 100 grams
One Teaspoon Supplies:
Creatine Monohydrate 5 grams
100% pure, pharmaceutical grade creatine monohydrate. Contains no animal
products.
Recommended Dosage: Take ½ teaspoon mixed with 10-12 oz. of water or
juice twice daily.
*A recent scientific study by a major midwestern university concluded
that the "loading phase" of creatine supplementation is
unnecessary,
Price: $22.00
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