intro to MMT

Question 1

additional precautions for MMT x4

Answer 1

• NWB or PWB
• difficult testing conditions
• poor understanding (dementia/delirium)
• cannot safely/comfortable assume testing position

Question 2

grade 0 scale =

Answer 2

no discernable muscle activity

Question 3

grade 5 scale =

Answer 3

maximal or best-possible response

Question 4

T/F: Assigned MMT grade reflects summed strength of all mm involved in an action, vs a specific mm in isometric strength?

Answer 4

true! With an emphasis on prime movers

Question 5

break test

Answer 5

manual resistance AFTER ROM was observed against gravity
- don’t allow clinician to “break” hold x2-3 secs

Question 6

break test tested at:
____ - 2 joint muscles
____ - 1 joint muscle

Answer 6

mid-range
end-range

Question 7

application of resistance

Answer 7

applied @ length-tension most favorable near distal end of body segment
- except: IR/ER - force applied through distal forearm & lover leg instead

Question 8

short lever arm =

Answer 8

muscle moves easier

Question 9

longer lever arm =

Answer 9

the harder it is to move it, more of a challenge

Question 10

T/F: longer lever arm provides more accurate reading in muscle strength & should be used more.

Answer 10

true, gives best results

Question 11

against gravity

Answer 11

3-5; resistance applied parallel to LOG

Question 12

gravity minimized

Answer 12

0-2; mm contracting perpendicular to LOG & body supported on smooth, flat surface

Question 13

subjective factors:

Answer 13

• Clinician’s impression of amount of resistance given
• Amount of resistance the patient holds against during test

Question 14

objective factors: black and white

Answer 14

• Ability of patient to complete full ROM & hold test position
• Ability to move part against gravity
• Inability to move part at all

Question 15

• full rom against gravity (3)
• holds position w/o breaking
  
  • if clinician breaks pt’s hold, it does not count!!!

Answer 15

grade 5 muscle

Question 16

full AROM against gravity (3)
breaks test against max resistance
- muscle gives/yields to some extent
stabilization critical!
if limited by soreness,pain be sure do document (not be as accurate)

Answer 16

grade 4 muscle

Question 17

full AROM against gravity
cant hold resistance
ensure jt isn’t locked - false strength
strength actually low - 5% of normal knee extension
- grater loss @ grade 3-5 than 3-1

Answer 17

grade 3 muscles

Question 18

Can move body segment in gravity-minimized position
in horizontal plane
can be eased by use of power board

Answer 18

grade 2 muscle

Question 19

visual or palpated contractile acitivty
no movement of actual body part
pt positioning is less important
clinician passively moves pt into testing position & asks them to hold and relax , enabling palpation or visualization of contraction

Answer 19

grade 1 muscle

Question 20

No contraction able to be visualized or palpated
Doesn’t necessarily mean there is no muscle activation
“No discernable contraction”

Answer 20

grade 0

Question 21

poor minus (2-/5)

Answer 21

subject does not complete ROM in gravity gravity-eliminated position

Question 22

available ROM

Answer 22

mm shortness, a contracture, or fixed joint limitation limits ROM, the patient performs only within the ROM available

can still be awarded grade 5
- be sure to document MMT performed in pt’s limited ROM