Energy systems

Aerobic energy system;

• glucose = energy + lactic acid

• glucose + oxygen = energy + lactic acid

• glucose + oxygen = energy + carbon dioxide + water + heat

• glucose = energy + carbon dioxide + water + heat

Endurance athletes use

• anaerobic energy system

• aerobic energy system

Power athletes use the

• aerobic energy system

• anaerobic energy system

Endurance athletes

• do not use oxygen to provide energy

• use predominantly slow twitch muscle fibres

• last for a short duration

• resynthesise small amounts of ATP (energy source in body)

Power athletes

• produce energy using oxygen

• use slow twitch muscle fibres

• can work at high intensity for over 3 minutes

• produce a fatiguing agent - lactic acid

ATP (adenosne tri-phosphate) is a stored source of energy found in the muscles. TRUE / FALSE

• True

• False

Jogging is

• a vigorous activity

• short duration

• a form of aerobic exercise

• a form of anaerobic exercise

The aerobic energy system is used for

• bicep curls 2 kg x 15 reps

• bicep curls 10 kg x 5 reps

• 5 x explosive vertical jumps

• lunges with a 10 kg x 5 reps

Anaerobic energy system lasts for .............

• 2- 3 seconds

• 8 - 10 seconds

• 1 - 60 seconds

• 60 seconds and above

Anaerobic energy system

• Low intensity, short duration

• Low intensity, high duration

• High intensity, short duration

• High intensity, long duration