measuring muscles Flashcards
why do we test muscle strength
because important in every aspect of life
ADL
sport/ hobbies
work
require knowledge for muscle testing
insertion point
muscle action and function
surface anat
factors that affect strength
what to test
muscle condition
(strength, endurance, power, length)
muscle control
(recrutiment, coordination, ballance, proprioception)
maximal strength
max amount of force that muscle can voluntary produce
maximal endurance
ability of muscle/ group to produce repeatitive contraction against resistance
or isometric contraction over time being held
muscle power
muscular velocity and force
selection of appropriate tool to test muscle condition
age
muscle capability
gender
practical
reliable
valid
what test can we use
functional
intrument
manual muscle testing
function test
intergrate muscle condition and control
timed
useful for screening tool
reliable
valid
walking- 10 meter walk test, timed up and go test, 6 minute walk test, STS, squat, bridge, hop, jump, running
instrumental test
isokenetic test- test a specific muscle group
isotonic test-
isometric test
instrument test
hand hel dynamotery
isometric test
adv- potable, high reliability, high sensitivitity
disad- expensive, unreliable with large force, poor validity
manual muscle testing
used to determine,
extent of muscle injury
exten of muscle weakness
adv- convinent, versatile, quick to apply,
dis adv- poor sensitivity, unreliable, physical limitations of therapist
Full ROM
When muscle changes from a fully lengthned position to a fully shorten position
outer range
refers to the portion of the full range between muscle fully lengthened and half-way through range.
last half of lengthning
inner range
The inner range is the portion of the full range between muscle fully shortened and half-way through range.
middle range
The middle range is the portion of the full range between the midpoint of outer range and midpoint of inner range.
MMT 0
No observable or palpable muscle contraction
MMT 1
Observable or palpable muscle contraction, but unable to produce full range of movement
MMT 2
Full range of movement, not against gravity
MMT 3
Full range of movement against gravity
MMT 4
Full range of movement against gravity and some manual resistance
MMT 5
Normal – full range of movement against gravity and manual resistance
Precautions to MMT
and Contradicitions
inflammation in present region
pain is present
history/ risk of CV problems
abdominal/ hernia surgery
fatigue is detrimental
limitation to MMT
moderate reliability between therapist
limited by strength of examiner
not sensitive
not linear
not sensitive enough to detect subtle changes
