Upper Extremity Flashcards
Upper extremity function
transport hand to desired location grasp tactile identification visual coordination body language balance (arm swing etc.)
Examples of upper extremity impairments
peripheral (fracture, ligs)
chronic (osteoarthritis)
neuro (stroke)
how many degrees of freedom does reaching have
> 7
Why do we care about degrees of freedom
means multiple ways to reach for target
T/F elbow and shoulder joint can plan independent of each other in reaching
false
feed forward neuro control
movements based on experience
anticipates
feedback neuro control
continuously regulates mm activity through reflex
reactive
do most movements use feedback or feedforward
combination
Agonist
concentric
antagonist
opposing concentric
Fitts Law
increase accuracy, decrease speed
tapping, reaching, grasping
small object = more time
what improves hand function
trunk/core exercises
Fitts law doesn’t apply to
traumatic brain injury, strokes
T/F does reaching for goal orientated movement impact kinematics
True - smoother, faster
when does max grip aperture occur
at 75% of reach movement time
which hemisphere is usually dominant for language
left cerebral hemi
T/L left handed people stronger in left
F they equal
right handed is more strong in right tho
T/F bone mineral density 3% lower in dominant hand
False, its 3% higher
Grips tests
Hand Grip Jamar dynamometer
3 types of pinch
tip, key, palmar
define dexterity
speed, coordination, fine motor interaction w enviro
measure of function for UE
Pinch tests
nine hole peg, box n block
Quick dash questions
daily living (jar, chores, washing, knife, golf) symptoms (tingles, sleep, pain)
