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2761787
Physiology- Sports supplements
Description
A level PE (A2 PE) Mind Map on Physiology- Sports supplements, created by douglas.white on 19/05/2015.
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a level
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douglas.white
, updated more than 1 year ago
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douglas.white
over 9 years ago
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Resource summary
Physiology- Sports supplements
Creatine supplements
Increases creatine levels in the muscle cells= more energy available
Improves maximal strength and lean muscle mass
Used by variety of athletes including sprinters and weightlifters
Side effects include diarrhoea, muscle cramps, bloating and weight gain
Protein supplements
Useful for athletes who are training heavily
Muscle growth and repair
Herbal remedies
Claim to reduce body fat, increase energy and body mass and increase hormones
Can have adverse reactions or even be tested positive to banned substances
Bicarbonate of soda
pH of blood increases= more alkaline, reducing the effects of lactic acid
Side effects include bloating, diarrhoea and nausea
Caffeine
Mild stimulant
Reduces perception of muscle fatigue
Good for endurance performers
Side effects include dehydration and muscle and abdominal cramps
EPO
Mimics the body's naturally occurring hormone EPO- stimulates RBC production in bone marow
Used by endurance athletes
Enhances oxygen carrying capacity of the blood
Side effects: increases blood viscosity= blood clots and heart failure, also hinders production of natural EPO
Anabolic steroids
Synthetic hormone related to testosterone
Used by strength and power performers
Facilitates storage of protein and growth of muscle mass
Able to train harder and recover quicker
Side effects include liver damage, heart failure, increased aggression, mood swings and male features developing in females
Human growth hormones
Synthetic hormone that mimics the body's growth hormone that facilitates protein synthesis and increases lean muscle mass
Improved strength, increased bone density and decrease in body fat (caused by increased metabolic activity)
Side effects include enlargement of internal organs= high blood pressure, increased risk of some cancers
Beta blockers
Lowers metabolic activity, reduces heart rate and blood pressure, helps to steady nerves and stop trembling
Used in archery/snooker
Side effects of low blood pressure and chronic fatigue
Water and electrolyte balance
recommended that performers should drink 150-200ml of water every 20 mins during competition
Sports drinks are used to maintain blood glucose and replace lost fluids and electrolytes
Sodium, potassium and chlorine are electrolytes, maintains rate of exchange of nutrients and waste products
If dehydrated, blood becomes more viscous= heart beats faster.
Failure to maintain electrolyte balance can lead to fatigue and cramps
Too much water can lead to hyponatremia- can lead to swelling of the brain
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