Semester 1 Exam Flashcards
Agonist
Contracting muscle
Antagonist
Relaxing muscle
Fast Twitch
80%FT 20%ST White fibre Rapid contractions Easily fatigued Anaerobic e.g 100m Sprinter
Slow Twitch
80%FT 20%ST Red Fibres Slow Contractions Resistant to fatigue Aerobic e.g Marathon Runner
Origin
The point at which muscle is attached to non moving bone
Insertion
The point at which the muscle is attached to the moving bone
Contractibility
Shortening of a muscle
Excitability
Muscles response to a nervous stimulus
Flexion
The decreasing the angle of a joint e.g bicep curl
Circumduction
Moving limb in a circular motion that creates a cone shape
Elasticity
Capable of regaining original form when force is removed
Extendibility
Muscles are capable of stretching when force is applied
Extension
Increasing the angle between two bones
Rotation
Moving bone around it’s longitudinal Axis
Speed
Rate at which a body moves from one location to another