Ability
Inherited, stable traits that determine an individual's potential to learn or acquire a skill.
Adaptability
The potential to change with ease
Adrenaline
Natural hormone released to speed heart rate up.
Aerobic
'With oxygen'. When exercise is not too fast and is steady, the heart can supply all the
oxygen that the working muscles need. Glucose + oxygen > energy + carbon dioxide +
water
Aerobic training zone
1. Calculate maximum heart rate (220bpm) minus age. 2. Work at 60 to 80% of
maximum heart rate.
Aggression
A deliberate intent to harm or injure another person, which can be physical or mental.
Agility
The ability to move and change direction at speed whilst maintaining control.
Agonist (prime mover)
Muscle or group responsible for the movement.
Altitude
A geographical area (of land) which is over 2000m above sea level.
Altitude sickness
Nausea caused by training at altitude.
Alveoli
Air sacs in the lungs
Amateur
Someone who takes part in an activity as a hobby, has another main job outside of
sport, takes part for fun and could be at a lower level.
Anabolic steroids
Artificially produced male hormones mimicking testosterone. They promote muscle and
bone growth, and reduce recovery time. often used by power athletes like sprinters.
Anaerobic
'Without oxygen'. When exercise duration is short and at high intensity, the heart and
lungs cannot supply blood and oxygen to muscles as fast as the respiring cells need
them. Glucose > energy + lactic acid
Antagonist
Acts to produce the opposite action to the agonist. They work in antagonistic pairs.
Arousal
A physical and mental (physiological and psychological) state of alertness/readiness,
varying from deep sleep to intense excitement/alertness.
Articulating bones
Where two or more bones meet to allow movement at a joint