energy systems

your body needs energy (….) to make your muscles move.

ATP

what depends on the intensity and duration of the exursies

wich of the 3 systems used

what are the 3 systems?

ATP-PC, Lactic Acid, Aerobic

ATP-PC=…..

Adenosine Triphosphate – Phosphocreatine

does the ATP-PC system use oxygen

no

what is the intensity and duration of the ATP-PC

verry high intensity. verry short duration(0-10seconds)

how fast does the ATP-PC system produce energy and what is its main fuel sorce

produces energy verry fast. Stored ATP + phosphocreatine (PC)

does the Lactic Acid system use oxygen, how long is the duration and what is its intensity

lactic acid system dosen’t use oxygen, duration is about 10s-2min, high intensity

what is the lactic acids systems main fuel source, how fast does it produce energy and what is produced when energy demand is high

main fuel source is glucose/glycogen, produces energy quickly, lactate is produced

examples of ATP-PC system being used

• 100 m sprint start

• Jumping

• Throwing a shot put

• Weightlifting

• A powerful tennis serve

examples of the lactic acid system being uesd

• 400 m sprint

• Repeated high-intensity efforts

• A hard 1–2 minute effort

• Some phases of games like basketball or hockey

does the aerobic system use oxygen, what is the duration and what is the intensity

yes the lactic acid uses oxygen, the duration is usualy longer than 2 minutes and the intensity is Low to moderate (although it can contribute during harder exercise too)

what is the arobic systems main food source, how does it produce energy and what are its by-products

the arobics main food source is carbohydrates and fats, it produces energy More slowly, but it can keep producing ATP for a long time and its by-products are Carbon dioxide + water

examples of the aerobic system in use are

• Long-distance running

• Swimming

• Cycling

• Walking

• Jogging

• A long soccer game

do all the systems work completely seperate

The systems don't work completely separately.ALL THREE energy systems are working during exercise, but one system becomes dominant depending on the activity's intensity and duration.

example of all systems in use at the same time

soccer.

Aerobic while jogging around

• ATP-PCwhen suddenly sprinting or jumping

• Lactic acid during a longer high-intensity effort