exercise physiology

Question 1

name the following characteristics of each energy system
is o2 required, duration speed of energy supply, fuel source, amount of ATP produced, by-products, cause of fatigue, recovery time and example of an activity

Answer 1

ATP cp 
o2 required: no 
 duration:  1-10 seconds 
speed of energy supply: very fast
 fuel source: ATP-CP
 amount of ATP produced: limited 
by-products: none
 cause of fatigue: lack of ATP-CP
 recovery time: 3 minutes
example of activity: 15-meter sprint 

lactic acid 
o2 required: NO
 duration: 10 seconds to two minutes 
speed of energy supply: fast
 fuel source: carbohydrates 
 amount of ATP produced: limited 
by products: lactic acid 
 cause of fatigue: to much lactic acid 
 recovery time: 2 hours 
example of activity: 200m sprint

aerobic 
o2 required: yes 
 duration: 2 minutes and over 
speed of energy supply: slow
 fuel source: fats and carbs
 amount of ATP produced: unlimited 
by products: CO2, H2O, salt 
 cause of fatigue: lack of 02
 recovery time: 3 hours 
example of activity: Marathon