Test One Chapter Two Flashcards
what is rotation
occurs when the system is restricted to move around a fixed axis, therefore in a circular path, angular motion
describe superoinferior axis
passes up and down, perpendicular to the transverse plane
example of open kinetic chain
leg extension, barbell curl, chest press
what is anthropometry
describes the shape of the system
what are some examples of anthropometry
height and weight, volume and breadth, related to shape, mass and mass distribution, BMI, ponderal index, somatotype, waist-to-hip ratio, crural index
what are some motions in the sagittal plane
flexion, extension, dorsiflexion, hyperextension, plantar flexion
what is a closed kinetic chain
the most distal segment is stationary
what is a simple kinetic chain
each segment participates in no more than two linkages
what is a serial skill
movements that appear to be continuous but are really a combination of discrete motions
most human motion is
general
describe mediolateral axis
passes horizontally side to side, perpendicular to the sagittal plane
what is a continuous skill
cycles of motion performed repeatedly with no well defined beginning or end points
examples of serial skills
triple jump, javelin throw, place kick in football, catching and throwing in baseball
describe sagittal plane
right and left halves
describe proximal
closer to the attachment of a limb to the body
describe frontal plane
anterior and posterior
motions in the transverse plane
rotation to the left, rotation to the right, internal rotation, external rotation, protraction, retraction,
what is a cardinal plane
a plane that passes directly through the midline of the body
what is translation
motion alone one of the x, y, or z axes in which all points of the system move at the same time, in the same direction, with respect to the defined reference of frame
what is force
something that possesses the capability to cause a change in motion or the shape of the system
what is curvilinear translation
path of the system is a curved line
examples of closed skills
basketball free throw, gymnasts, running, golf
other name for posterior
dorsal
describe deep
further from the surface of the body
what is a system
any structure or organization of related structures whose state of motion is of analytical interest
motions in the frontal plane
abduction, adduction, elevation, depression, eversion, inversion, deviation, lateral flexion
what is a complex kinetic chain
a segment is linked to more than two other segments
what is an open kinetic chain
the most distal segment is free to move
describe lateral
position or movement away from the midline of the body
examples of open skills
passing in soccer game, football throw, hockey
what are some examples of smoatotypes
endomorph, mesomorph, ectomorph
describe transverse plane
superior and inferior
what is center of mass
the point that represents the average location of a system’s mass, aka center of gravity
example of closed kinetic chain
push up, squat,
what is motion
change in position with respect to spatial and temporal frames of reference
what are closed skills
a skill performed under standard environmental conditions
describe distal
having a position further from the attachment of the limb of the body
example of continuous skills
swimming, jogging, skipping and walking
what is general motion
combination of translation and rotation, rolling
other name for anterior
ventral
describe anatomical position
Body is upright, facing the observer, flat feet and directing forward/parallel. The UE are at the body’s sides with palms facing forward and fingers together
what is deviation
medial (pinky) and lateral (thumb)
example of discrete skills
broad jump, throwing a dart, lifting a weight
what are the three cardinal planes
sagittal plane, frontal, and transverse plane
what is discrete skills
movement with a definite beginning and end point
describe superficial
closer to the surface of the body
what are open skills
a skill that must be altered because of the changing dynamics of the activity, environment, or object of interest
center of mass has what qualities
point that represents the average location of a system’s mass, all cardinal planes pass through this point, gravitational pull is concentrated here
describe medial
position or movement toward the midline of the body
what is a kinetic chain
system of linked rigid bodies subject for force application
what are some examples of a system
entire human, part of a human, object kicked or thrown by human
what is a free body diagram
a simplified representation of the system free of the movement environment
what is rectilinear translation
path of the system is a straight line
what is crural index
ration of the length of the lower leg to the thigh
what are some motions in multiple panes
circumduction, pronation of the ankle, supination of the ankle
describe anteroposterior axis
runs horizontally front to back, perpendicular to the frontal plane
