Vocabulary - Ch. 3 Flashcards
obesity
the condition of being considerable overweight; a person who is at least 30 pounds over the recommended weight for his or her height.
kinesiology
the study of human movement
biomechanics
the study of how forces affect a living body.
ground reaction force
an equal and opposite external force that is exerted back onto the body by the ground.
qualitative analysis
applying principles of proper technique and combining them with observations in order to make an educated evaluation
anatomic position
standard posture wherein the body stands upright with the arms beside the trunk, the palms face forward, and the head faces forward.
midline
that which is contained within an imaginary one that splits the body into equal halves
sagittal plane
an imaginary plane that bisects the body into equal halves, producing a left half and a right half
frontal plane
an imaginary plane that bisects the body into equal halves, producing a front half and a back half.
transverse plane
an imaginary plane that bisects the body into equal halves, producing a top half and a bottom half.
anterior-posterior axis
a straight line that cuts through the body from front to back.
longitudinal axis
an imaginary long, straight line that cuts through the body from top to bottom
range of motion
the amount of movement produced by one or multiple joints
flexion
a bending at a joint where the relative angle between two adjoining segments decreases.
extension
a bending at the joint where the relative angle between two adjoining segments increases.
abduction
a body segment is moving away from the midline of the body.
adduction
a body segment is moving toward the midline of the body
internal rotation
rotation of a limb or body segment toward the midline of the body
external rotation
rotation of a limb or body segment away from the midline of the body
pronation
a triplanar movement that is associated with force reduction
supination
a triplanar motion that is associated with force production
flexors
a muscle that produces flexion of a limb or joint
extensors
a muscle that produces extension of a limb or joint
abductors
a muscle that produces abduction of a limb or joint
pronators
a muscle that produces pronation of a limb or body segment
supinators
a muscle that produces supination of a limb or body segment
prone
body position where one is lying with the face downward
supine
body position where one is lying on the back and face is upward