Ergonomics Flashcards
class 1 motion
using fingers only
class 2 motion
using fingers and wrist
class 3 motion
movement of fingers, wrist and arm
class 4 motion
movement of entire arm and shoulder
class 5 motion
movement of arm and twisting of body
T/F?
the correct clinician positioning is as follows….
feet flat on floor
body weight centered on seat and clinican’s stool
shoulders are relaxed and in parallel to floor
back is straight
head aligned with spine
eyes directed downward
true
T/F?
the correct clinician positioning is as follows….
thights parallel with floor
body weight supposted by thighs and legs
upper arms relaxed
elbows in netural position (close to body)
lumbar curve supported
head is erect
distance from eyes to ct’s oral cavity approx 14-16 inch
true