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P.E HEART AND ENERGY

p.e theory

QuestionAnswer
heart rate beats from heart per minute (BPM)
stroke volume blood pumped from heart per beat
cardiac output blood pumped from heart per minute
What determines cardiac output amount? how intense the exercise is. 5l at rest 40l high intesity
Equation for cardiac output? SV X HR (Stroke volume X heart rate)
another word for short term effects? acute
another term for long term effects? chronic
tidal volume volume of air inhaled and exhaled each breath
vital capacity max breath in and out with forced exhalation
minute volume volume of air in and out in 1 minute
thermoregulation ability for an organism to keep its body temp.
plasma gets rid of waste (CO2)
platelets protects us when injured (scabs)
red blood cells carry oxygenated/deoxgenated blood around the body
white blood cells fights diseases
ATP/ADP/CP adenosine tri phosphate/ adenosine di phosphate/ creatine phosphate
what does the breakdown of ATP do? releases energy in the mitochondria of the human cells
how long does ATP-PC last for? 10 secs, runs out quickly
how intense should exercise be for ATP-PC? Very high.. usually explosive, shot put
how long does ATP-PC take to recover? 3 mins
why is the lactic acid system used? when oxygen is unavailable, anaerobic exercise is taken over, uses lots of energy from stored glycogen which is broken down
how long does the lactic acid system last? 45 secs
specific sport for lactic acid system? 200- 800 metres
what do we mean when fatigued after lactic acid buld up? lactic acid produces no further energy production, basically telling us we cannot go on any longer. pyruvic acid changes into lactic acid, it is usually removed when O2 is available
how long to it take for lactic acid to be removed? 20-60 minutes
what is aerobic exercise? muscles work when O2 is available
what happens to pyruvic acid in aerobic respiration? it is turned into energy after being broken down by glycogen, and instead of turning in to lactic acid
how long does aerobic energy last? 3+ minutes, can last forever if used in a specific effort percentage
sports usually use aerobic energy? marathon runners, cyclists
Created by: alexpugh5
 

 



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