ergogenic aids : physiological aids Flashcards

1
Q

physiological aid

A

a technique that enhances performance by directly influencing the physiological capacity of a particular body system

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2
Q

physiological aid examples

A

blood doping (illegal), intermittent hypoxic training (IHT) cooling aids

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3
Q

blood doping

A

artificially boosting the red blood cell count by infusing blood into the body
- mostly endurance athletes who rely on aerobic respirations

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4
Q

potential benefits of blood doping

A
  • increased red blood and haemoglobin cell count
  • increased O2 carrying capacity of the blood
  • increased VO2 max
  • delayed OBLA/lactate threshold/fatigue
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5
Q

potential risks of blood doping

A
  • increased blood viscosity
  • decreased blood flow or Q
  • increased risk of blood clots, heart failure, stroke
  • increased risk of blood viruses like HIV, hepatitis
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6
Q

intermittent hypoxic training (IHT)

A

HIIT performed in hypoxic conditions either with an exercise mask or in a hypoxic chamber, work interval 5-10 secs/ work rest ratio 1:2 then progressing to 2:1 with a total session time of 5-10 mins
- used by endurance and anaerobic athletes and games players

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7
Q

potential benefits of IHT

A
  • used to pre-acclimatise for a competition at altitude
  • increased VO2 max
  • increased glycolytic enzyme activity
  • increased buffering capacity
  • delayed OBLA/lactate threshold/fatigue
  • increased speed of PC resynthesis during fast component EPOC
  • enhances speed, power and RSA
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8
Q

potential risks of IHT

A
  • benefits lost quickly
  • hard to reach normal work rates
  • risk of decrease in immune function
  • risk of infection from masks
  • may lose motivation
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9
Q

cooling aids

A

reduces core body temp to improve the recovery process e.g cold air exposure, cold water immersion

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10
Q

advantages of pre-cooling

A

• maintains intensity and speed
• reduces thermal strain and CV drift
• allows different pacing strategies
• reduces fatigue

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11
Q

disadvantages of pre-cooling

A

• metabolic rates- inaccurate perceived exertion
• reduces HR reduces O2 to muscles
• athletes cannot gauge how hard to pace themselves
• vasoconstriction and ice burns

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12
Q

post-cooling aids

A

• cryotherapy used to treat injuries and recover
• can be used in acute chronic injuries
• numbs nerve endings to reduce pain and swelling (vasoc)

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13
Q

ice baths

A

• used for pain relieving properties
• blood drained away from muscles to reduce lactic acid then ‘new’ blood flows to muscles to help the functioning of cells
•reduces DOMS

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14
Q

disadvantages of ice baths

A

• could trigger angina through constricting coronary arteries
• sensitivity to ice - ice burns
• cannot be used by those suffering from high blood pressure

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