Transcript Sports Supplements

Sports Supplements
Food supplements V Natural Foods?
CREATINE - Provides energy for rapid muscular contractions/maximal work
over short period of time
Produced/formed by the body – energy source for ATP resynthesis
Additional supplement said to raise body’s level of creatine
Advantages
Disadvantages
Some benefit to high intensity/
Increases body mass
Short bursts
Poss long term effect on
Increases amount of creatine in
kidneys
Body
Muscle cramping
Not a banned substance yet
Diarrhoea
• Protein (Protein shakes)
• Advantages:
Builds greater muscle mass
Amino Acids – used in energy system
Herbal Remedies
Medicinal – using plant extracts
Anrica – reduces muscle soreness/swelling
Disadvantages:
Excess protein dealt
with by liver/kidney may have long term eff
NO conclusive evidence
to improve muscular
strength/power or
endurance
Quantities so small little/no effect within
body
Psychological….?
• Caffine – Stimulant
• Advantages:
• Extended aerobic exercise
• Increase use of lipids (fats) to
• Provide energy for ATP resynthesis –
Saves glycogen store
• Limited evidence of increasing
• Neuromuscular function – favourable
Impact on D.M / R.T
Disadvantages:
Anxiety, stomach upset
HR abnormalities
Diuretic – unnecessary
pre-exercise loss of fluid
Can directly affect
temp regulation
Bicarbonate of Soda
• White soluble compound (NaHCO3) used in evervescent drinks and as an
antacid.
• “Soda loading” to delay the onset of fatigue during prolonged anaerobic
exercise.
• Body has a “buffering system”. The ability of the blood to compensate for
additions of lactic acid/hydrogen ions and maintain pH level.
• Blood increases in acidity, caused by the diffusing of lactate and Hions
from the muscle cells
• Naturally occurring bicarbonate makes up part of the buffering system
• Increasing amount of bicarbonate in the system = delays fatigue during
anaerobic exercise
• Increased amounts of bicarbonate, will allow H ions to leave the muscle
cells at a faster rate – allowing anaerobic energy systems to be used for
longer.
• Benefits:
• Soda loading can be of benefit during near maximum intensity – for 1-7
mins, or sports where repeated anaerobic bursts are required.
• Can also help high intensity aerobic exercise but NOT LOW INTENSITY
• 5 equal doses should be taken at 30 min intervals starting 3 hrs before
competitIon
• Stomach cramps/diarrhoea only known side effects