Glucose
A major source of energy for most cells in the body
Aerobic respiration
The process of releasing energy from glucose, using oxygen
Anaerobic respiration
The process of releasing energy from glucose, without oxygen
Aerobic exercise
Working at a moderate intensity allowing the body time to utilise oxygen for energy production and to work for a continuous period long distance events
Lactic acid
A colourless acid produced in muscles tissues during strenuous exercise when the body is exercising anaerobically at a high intensity
Cramp
Painful, involuntary contraction of a muscle, usually caused by fituege