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47 Cards in this Set

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Kinesiology
The study of the principles of mechanics and anatomy in relation to human movement.
Motive Force
The force that starts or causes a movement.
Resistive Force
A force that resists the motion of another force.
Concentric Action
A contraction in which a muscle exerts force, shortens, and overcomes a resistance.
Eccentric Action
A contraction in which a muscle exerts force, lengthens, and is overcome by a resistance.
Isometric
A contraction in which a muscle exerts force but does not change in length.
Lever
A rigid bar that rotates aroung a fixed support (fulcrum) in response to an applied force.
Fulcrum
The support on which a lever rotates when moving or lifting something.
Flexion
Movement about a joint in which the bones on either side of the joint are brought closer to each other.
Extension
Movement about a joint that brings two parts into or toward a straight line, thereby increasing the angle of the joint; such as straightening the elbow.
Abduction
Movement of a body part away from the midline of the body.
Adduction
Movement of a body part toward the midline of the body.
Axis of Rotation
The imaginary lineor point about which an object, such as a body or a lever, rotates.
Torque
A force causing rotation about a fixed axis of rotation; the acto or process of turning around on an axis.
Law of Inertia
The tendency of all objects and matter to remain at rest, or, if moving, to continue moving in the same straight line unless acted on by an outside force; proportional to body mass.
Law of Acceleration
The force (F) acting on a body in a given direction is is equal to the body's mass (m) multiplied by the body's acceleration (a) in that direction: F=ma or a=F/m
Law of Impact and Reaction Forces
The earth exerts a force against the body that is equal to the force applied to the earth as one moves.
Kinesthetic Awareness
One's sense of one's position and movement in space during various activities.
Kyphosis-Lordosis
An increase in the normal inward curve of the low back and increased outward curve of the thoracic spine.
Flat-Back Posture
A position of the spine that minimizes the natural curve by placing the pelvis in a slight posterior tilt.
Sway-Back Posture
An exaggerated forward curvature of the lumbar spine, often resulting in a protruding abdomen and buttocks; aka Lordosis.
Scoliosis
A lateral curvature of the vertebral column, usually in the thoracic area.
Connective Tissue
The tissue that binds together and supports various structures of the body.
Agonist
A muscle that is directly engaged in contraction; opposes the action of an antagonist muscle.
Antagonist
The muscle that acts in opposition to the action produced by an agonist muscle.
Synergist
A muscle that assists another muscle in its function.
Co-contraction
The mutual coordination of antagonist muscles (such as flexors and extensors) to maintain a position.
Stabilizer
Muscles that stabilize one joint so a desired movement can be performed in another joint.
Isometric Action
A contraction in which a muscle exerts force but does not change in length.
Hyperextension
Extreme of excessive extension of a joint.
Superficial
External; located close to or on the body surface.
Aponeurosis
A white, flattened, tendinous expansion that mainly serves to connect a muscle to the parts that it moves.
Interdigitate
To interlock, like the fingers of folded hands.
Lateral
Anatomical term meaning away from the midline of the body; pertaining to the side.
Supine
The position of the body when lying face upward.
Circumduction
The active or passive circulat comvement of ajoint; a combination of flexion, abduction, extension and adduction mevements.
Posterior
Anatomical term meaning toward the back; opposite of anterior.
Medial
Anatomical term meaning toward the midline of the body; pertaining to the center.
Anterior
Anatomical term meaning toward the front. Same as ventral.
Dorsiflex
Movement of the dorsum (top) of the foot up toward the shin (proximally).
Eversion
Movement of the sole of the foot outward.
Retraction
Scapular adduction
Protraction
Scapular abduction.
Articulation
Place of union or junction between two or more bones.
Tuberosity
A projection or protuberance on a bone usually serving for the attachment of muscles or ligaments.
Supinate
A triplanar motion at the subtalar joint consisting of dorsiflexion, adduction, and inversion; looks like inversion.
Pronate
A triplanar motion at the subtalar joint consisting of abduction, dorsiflesion and eversion; closely resembles eversion