Key words - Glossary Flashcards
Adrenaline
A stress hormone that is released by the sympathetic nerves and cardiac nerve during exercise which causes an increase in heart rate.
Affective component of attitude
Relates to feelings and interpretation such as enjoyment.
Aggressive cue hypothesis
Aggression is caused by a learned trigger.
Agonist
The muscle that is responsible for the movement that is occuring.
Amateur
A person who plays sport for the love of it and receives no financial gain.
Angina
Chest pain that occurs when the blood supply through the coronary arteries to the muscles of the heart is restricted.
Antagonist
The muscle that works in opposition to the agonist to help produce a coordinated movement.
Area of support base
The larger the area the greater the stability.
Arousal
A level of activation, a degree of readiness to perform.
Arteriovenous difference
The difference between the oxygen content of the arterial blood arriving at the muscles and the venous blood leaving the muscles.
Articulating bones
Bones that meet and move at the joint.
Associative stage of learning
The second stage of learning as motor programmes are developed.
Atheroma
A fatty deposit found in the inner lining of an artery.
Atherosclerosis
This occurs when arteries harden and become clogged up by fatty deposits.
ATP-PC system
An energy system that provides quick bursts of energy and is used for high intensity exercise. It can only last for up to 10 seconds.
Autonomous stage of learning
The final stage of learning used by an expert.
Balanced diet
A diet containing a variety of foods from each of the food groups so that there is an adequate intake of nutrients.
Ballistic stretching
Involves performing a stretch with swinging or bouncing movements to push a body part even further.
Behavioural component of attitude
The actions of the performer.
Behaviourist theory
Explains how actions are linked to stimuli.
Bilateral transfer
When the learning of one skill is passed across the body from limb to limb.
Blood pressure
The force exerted by the blood against the blood vessel wall.
Bohr shift
When an increase in blood carbon dioxide and a decrease in pH results in a return of the affinity of haemoglobin for oxygen.
Bradycardia
A decrease in resting heart rate to below 60 beats a minute.