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قابل ویرایش 25 اسلاید

قسمتی از اسلایدها

System Level Function

Force & torque production for joint mobility and stability through rotation and translation of bones (segments)

Muscle Actions

Muscle Coordination (Synergy)

Related Terminology

muscle action – the development of tension (force) by a muscle

functional muscle group – a group of muscles that are capable of causing a specific joint action (e.g., wrist radial deviators)

motive force (or torque) – force causing the observed movement

resistive force (or torque) – force opposing the observed movement

Concentric

Shortens to cause movement

Rotational movement

Mechanically:

Net Muscle (Motive) Torque > Net Resistive Torque

فهرست مطالب و اسلایدها

System Level Function

Related Terminology

Types of Muscle Actions

Concentric

Eccentric

Isometric

Shortens to cause movement

Rotational movement

Mechanically

Eccentric

Lengthens to resist, control, or slow down movement

Rotational movement

Mechanically:

Isometric

Stays the same so that bone will stay fixed

No movement

Mechanically

Muscle Coordination

Agonists

Antagonists

Stabilizers

Neutralizers

Agonist  (Mover)

Antagonist

The role played by a muscle acting

Stabilizer

Neutralizer

To perform a muscular analysis:

To perform a muscular analysis (ID muscle actions and responsible groups):

the FMG(s) that is(are) developing force

the type of muscle action of the FMG(s)

the roles played by the FMG(s)

Stabilization?

Neutralization?

Shoulder extensors

Forearm pronators

Summary