Lecture Quiz #3

Action force

force creating a movement

Resistance force

force that needs to be overcome for movement to occur

Muscle contraction

ability to actively develop tension

Toward

myosin tries to pull the actin ___ the middle of the sarcomere

Away from

resistance force tries to pull the actin ___ the middle of the sarcomere

Concentric

muscle contraction type where the myosin overcomes the outside force and the muscle belly shortens

Isometric

muscle contraction type where the myosin and outside force are equal in strength - tension developed and same length is maintained

Isometrically

whatever muscle/group gets you into the anatomical position will continue ___ to hold you in that position

Postural

___ muscles maintain isometric contraction most of the time

Eccentric

muscle contraction type where the outside force overcomes the myosin and the muscle belly lengthens

Control the speed

role of a muscle in an eccentric contraction

Antagonistic muscles

force that controls the speed of a movement

Lowering

Eccentric contraction occurs when: ___ something with control

Losing

Eccentric contraction occurs when: ___ when trying to win

Slowing down

Eccentric contraction occurs when: ___ a body part

Tension

difference between a muscle stretch and an eccentric contraction

Active

type of insufficiency that occurs when a muscle creates a movement at more than one joint simultaneously

ROM

thing that is limited by muscle insufficiency

Passive

type of muscle insufficiency that occurs when a muscle is stretched at more than one joint simultaneously

Antagonistic

movement type that’s limited by passive insufficiency

Shortening/extensibility

___ of a muscle is shared by all active joints