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VCE PE Unit 1/2

Agonist The muscle Primarily responsible for producing movement
Antagonist The muscle that relaxes as the agonist contracts to allow ease of movement and minimise the risk of injury
Stabilisers Muscles that act to stabilise the bone where the prime mover is acting to allow efficiency of movement and maximum contractile force to be developed if required
Reciprocal inhibition When muscles on one side of a bone of a bone or joint relax to accomodate contraction on the other side of the bone or joint
All or Nothing Principle Either the whole muscle contracts or none of the muscle contracts
Capillary Density
Phosphocreatine Stores
Triglyceride Stores The optimum state of fatty acids in order to enable storage
Isotonic Contractions Most Common type of Muscle Contraction, If a muscle shortens during a contraction then a concentric isotonic contraction has occured. For example: A bicep curl as you curl the angle decreases
Isometric Contractions Involves little if any, change in muscle length while tension is developed
Smooth Muscle These are found internally in blood vessels and walls of the intestine. They are made up of Spindle Cells
Cardiac Muscle These muscles make up the walls of the heart. They are involuntary and have striped appearance
Skeletal Muscle These external muscles are attatched to the bones that make up the skeletonn. They are under your direct control which is known as Voluntary muscles.
Fast-Twitch Oxidative
Fast-Twitch Gycolytic
Mitochondrial Density
Oxidative Enzymes
Myoglobin content
Fatigue resistance
Created by: ryacur109