joint movements

movement vs strength

• can not be both mobile and strong
• more mobility weaker joint
• mobile joints are supported by muscle and ligaments, not bone- to -bone connection

motion in joint

• 3 types of dynamic motion
• linear movement (gliding)- plane or direction of motion, relationship between structures
• angular movement -based on reference to individual in anatomical potition, between carpal or tarsal bones
• flexion- angular mtion, anterior- posterior plane, reduces angle between eleements
• extension- angular motion, anterior-posterior plane, increases angle between elements
• hyper extension- angular motion, extension past anatomical position
• rotation
• planes (axes) of dynamic motion:
• monaxial (1 axis)
• biaxial (2)
• triaxial (3)

Slide 3

Slide 4

• flexion decreases angle between articulating bones
• extension- movement that increases angle between articulating bones
• hyperextension- moves body beyond anatomical position
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angular motion, frontal plane

• abductions take away from mid line
• adduction take to midline
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angular motion, with out rotation

• circumduction- circular movement at ball and socket joint
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left or right

• rotation turning movement of bones at a joint
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Slide 8

• supination- moves palm into anatomical position
• pronation- moves palm to face posteriorly
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Slide 9

• eversion lateral movement of the ankle to move the foot so that the toes point away from the bodys midline
• inversion foot moves in toward midline
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Slide 10

• dorsiflexion allows you to walk on your heels
• plantar flexion walk on tip toes
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reposition- is the opposition

• opposition thumb pad with the pad of the little finger
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Slide 12

• retraction to take back
• protraction moves structure anteriorly
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Slide 13

• depression down
• elevation up
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Slide 14

• lateral flexion bending vertebra column side to side
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