Introduction To Movement Analysis Flashcards
What is physiological movement?
Voluntary, sweeping movement of one body segment in relation to another. Often a change in angle between two bones
What is an accessory movement?
Involuntary, small gliding adjustments between joint surfaces to facilitate smooth and full movement
What is active insufficiency?
A muscle, which passes over two joints can’t shorten sufficiently to produce full range of movement at both joints
What is passive insufficiency?
A muscle, which passes over two joints, can’t be lengthened enough to allow full range of movement at both joints
What is the agonist/prime mover responsible for?
The movement
What is the antagonist responsible for?
The movement opposing that of the agonist
What is the role of a fixator?
Steadies the base, stabilises the proximal attachment of the agonist
What is the role of the synergist?
Improves quality and control, by preventing unwanted movements in adjacent joints or assists the prime mover
What is isometric muscle work?
Static muscle work
An increase in tension with no length change so no movement is produced
Internal muscle tension = external force applied
(Think about muscles in a plank)
What is isotonic muscle work?
Dynamic muscle work
An increase in tension which changes muscle length so movement is produced
What are the three types of isotonic muscle work?
Concentric
Eccentric
Isokinetic
What is concentric muscle work?
Muscle shortens
Internal muscle force > external
What is eccentric muscle work?
Muscle lengthens
Internal muscle force < external
What is isokinetic muscle work?
Characterised by or producing a constant speed (rare in human body)
What do you need to identify in movement analysis at each joint?
Movement occurring
Axis and plane
Range of joint movement
Main muscle involved
Type of muscle work
Range of muscle work
Role of muscle
Measurement
Limiting factors
