1/105
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
Clinical Measurement
A way of understanding, evaluating, & differentiating characteristics of a patient’s presentation
Why do physiotherapists need to use clinical measurements?
identify the problem → diagnosis
compare with normal ranges
assist in planning intervention
evaluate intervention
effective documentation
effective communication (patient and colleagues)
Research
What makes a good clinical measure?
Valid
Reliable
Practical
Objective
Validity in clinical measurements
Extent to which an instrument measures what it is intended to measure
i.e. how well a test measures what it claims to measures
✅Swelling
❌ pain
Reliability in clinical measurements
The degree to which the result of a measurement can be depended on to be accurate
the variation in the measurement when taken on repeated occasions
the variation in the measurement when taken by two different individuals
Measurements can be reliable but NOT VALID
Measuring device reliable if it is consistent!
HOWEVER, if it consistently overestimates → it may be reliable but not valid!!!
Intra-examiner Reliability
the ability of a single examiner/tester to obtain identical measurement during separate performances
Inter-Examiner Reliability
The ability of 2x or more examiners to obtain identical measurement during separate performances
Measurement Error
Difference between a measured quantity and it’s true value
Systemic Error (bias)
caused by an issue with equipment that affects all measures
Random Error
Deviation from the true measure is a result of chance
How do we enhance reliability?
Standardization:
using a standardized testing procedure
training in testing procedure
using standardized instructions
using specific landmarks
standardizing equipment
Practicality
capable of, or suitable to, being used or put effort into effect
Objectivity
findings are reported without distortion by personal opinion or feelings
Physiological Movement
joint movement can be produced voluntarily by person
active and passive
e.g. flexion, extension, rotation
Accessory Movements
joint movement that can not be produced in isolation by a person by themselves
Important part of normal physiological movement
e.g. gliding, rolling, spinning, translation
Active ROM
Patient contracts muscles to voluntarily move body part through the ROM i.e. nil assistance
Reflects functional ability
most unable to perform movement their full available ROM
May be affected by:
Willingness to move
restricted joint mobility
muscle weakness
pain
swelling
Passive ROM
Therapist or another force the body part through the ROM i.e therapist assists
Reflects amount of movement possible at joint
Typically slightly more than AROM
Provides information about factors limiting movement:
soft tissue
ligaments
joint capsule
bone
What does AROM vs PROM tell us?
AX of AROM and PROM can assist with diagnosis and management
contractile (muscle/tendon) vs non-contractile tissues (ligament/joint)
Contraindication of AROM and PROM
immediately after injury/surgery where movement is likely to disrupt healing
fracture, dislocation, or subluxation is suspected
Myositis ossificans or ectopic calcification is suspected or present
Precautions of AROM and PROM
painful conditions
inflammatory process in/around joint
osteoporosis or marked bone fragility
Hypermobile joints
Patients with hemophilia
recently healed fractures
presence of a hematoma
Factors Affecting ROM
age
gender
cultures
genetics (hypo/hyper)
occupation/hobbies
impairments
position of joint being measured
Muscle length - 2 joints muscles
Abnormal limitations of ROM
destruction of bone and cartilage
bone fracture foreign body in joint
Tearing or displacement of intrascapular structures
adhesions or scar tissue
muscle atrophy or hypertrophy, tear or rupture
pain
oedema
neurological impairment
Function of the Hip Joint
supports body weight/ loads
movement/locomotion
movement in 3 planes
Anatomical Variations of the Femoral Neck
Angle of inclination:
Normal: 120-135°
Coxa vara: < 120°
Coxa valga: >135°
Femoral Version:
normal: ~ 12-15°
Anteversion: > 12-15 °(“toe-in gait)
Retroversion: < 12-15 °(“toe-out gait)
Anatomical Variations of Acetabulum
Center-edge Angle:
35° in the coronal/frontal plane
Anteversion Angel:
normal - 20°
anteversion - inclines more anteriorly
Retroversion - inclines more pstero-laterally
Hip Flexion Range
120 ° (at the hip)
Hip Extension Range
30° (at the hip)
Hip Abduction Range
45° (at the hip)
Hip Adduction Range
30 ° (at the hip)
Hip Internal Rotation Range
45° (at the hip, rotation)
Hip External Rotation Range
45 ° (at the hip, rotation)
Function of the Knee Joint
Support body weight
transmit/absorbs forces
sustains large mechanical loads
Knee Flexion Range
140 ° (at the knee joint)
Knee Extension Range
0° (at the knee)
Joint Position → Closed packed position
Position with most joint congruency
capsule and surrounding ligaments maximally tight
minimal accessory joint movement
Maximally compressed and difficult to distract
Joint position → Open/Loose Packed Position
Any position of joint other than closed packed position
“resting position” → least joint congruency and greatest laxity of capsule and ligaments
Closed & Open Packed Positions of the Hip
Closed Packed = Full extension, IR and abduction
Open Packed = 30° flexion, 30° abduction and slight ER
Closed & Open Packed position for knee (tibiofemoral joint)
closed packed = full extension & ER
open packed = flexion ~ 25°
Closed and open packed position for ankle (Talocrual Joint)
Closed packed = Maximal DF
Open packed = 10° PF
Q - Angle
angle formed by the line of pull of the quadriceps and the line representing patellar tendon
females: 15-17°
males: 10 - 14 °
Anatomical Variation of Knee joint alignment
Neutral alignment/normal
Genu Varus (knees out)
Genu Valgus (knock knees)
Valgus Forces
outwards/lateral angulation of the distal segment of bone or joint
Varus Forces
Inward/medial angulation of the distal segment of a bone or joint
Open kinetic chain movements
movement of one joint is independent of other joint
distal segment of chain moves freely in space
Closed chain kinetic movements
movement of one joint causes other joints to move
distal segment of chain is fixed
Arthrokinematics → Knee Flexion
ER of the femur by the popliteus muscle (unlocking the knee)
Patella shifts laterally
posterior rolling and anterior femur translation/slide (fixed tibia)
posterior motion of minisci
Arthrokinematics → Knee Extension
ER rotation of the tibia in last 20° of extension (screw-home mechanism)
Superior glide of patella
Anterior rolling and posterior translation/slide of femur (fixed tibia)
anterior motion of menisci
Arthrokinematics → screw home mechanism
“knee locking”
rotation during the last 20° extension
Causes external tibial rotation
Point at which the medial and lateral condyles are locked to form the lose pack position of the knee
Function of the Shoulder
link between the upper extremity and the trunk
most dynamic and mobile joint in the body → yet can sustain incredible forces & speeds
complex and intricate movements
important for hand positioning
Disparity in size between the ball (humeral head) and socket (glenoid) that make up the joint
Range of motion at the expense of stability (large ROM, not stable)
Absent bony constraints
stability from soft tissue
Stability and Mobility of the Shoulder
interplay between the rotator cuff muscle and the static structures
coordinated movement of the scapular enables the power movers of the shoulder to function
mobility derived from 4 joints
Sternoclavicular Joint
Acromioclavicular Joint
Glenohumeral Joint
Scapulothoracic Joint/articulation
Movement further augmented by movement of the spine
Scapulohumeral Rhythm
Describes the timing of movement at the glenohumeral and scapulothoracic joints during shoulder elevation
it preserves the length-tension relationships of the glenohumeral muscles
it prevents impingement between the humerus and the acromion
Elbow Flexion Range
140-160° (at the elbow)
Elbow Extension Range
0° (at the elbow)
Forearm Supination Range
80-90° (at the forearm)
Forearm Pronation Range
80-90° (at the forearm)
Elbow joint closed packed positions → ulnohumeral
Extension (at the elbow)
Elbow joint open packed positions → ulnohumeral
70° flexion, 10 ° supination (at the elbow)
Elbow joint closed packed position → Radiohumeral
90° flexion + 5° supination
Elbow joint open packed position → radiohumeral
full extension, full supination (at the elbow)
Elbow Joint closed packed position → Superior Radioulnar
5° supination (at the elbow)
Elbow joint open packed position → Superior Radioulnar
70° flexion, 35° supination (at the elbow)
Dorsiflexion Range
15-20° (at the ankle)
Plantarflexion Range
40-50°
Inversion (ST joint) Range
5 ° (at the ankle)
Eversion (ST joint Range)
5 ° (at the ankle)
Total/whole foot inversion (includes fore foot) range
30-35° (at the ankle and foot)
Total/whole foot Eversion (includes fore foot) Range
15-20° (at the ankle and foot)
Hallux Flexion range
45° (at the big toe)
Hallux Extension Range
70° (at the big toe)
Pronation of Ankle
Abed:
abduction
eversion
dorsiflexion
unlocks midtarsal joint
flatter
longer
wider
flexible
mobile
Supination of Ankle Joint
Adip:
adduction
inversion
Plantarflexion
locks midtarsal joint
higher
shorter
narrower
stiff
rigid
Windlass Mechanism
Phenomenon in which the plantar fascia becomes taut as the 1st MTP join is extended passively, causing a rise in the medial longitudinal arch without direct muscle action.
Function:
supports medial and lateral arch during WB
Assists in re-supination of foot during propulsion
absorbs and release mechanical energy
increases forward propulsion force
Shoulder Flexion Range
170-180° (at the shoulder)
Shoulder Extension Range
60° (at the shoulder)
Shoulder Abduction range
170-180° (at the shoulder)
Shoulder Horizontal Adduction Range
135° (at the shoulder)
Shoulder Horizontal Abduction Range
45° (at the shoulder)
Shoulder Internal Rotation (in 90° abduction) range
70° (at the shoulder)
Shoulder External Rotation (in 90° Abduction) Range
90° (at the shoulder)
Wrist Flexion Range
80-90° (at the wrist)
Wrist Extension Range
70-90° (at the wrist)
Ulnar deviation range
30° (at ulna)
Radial Deviation Range
20° (at radius)
Metacarpophalangeal Flexion Range
100° (at metacarpal joints)
Metacarpophalangeal Extension Range
45° (at metacarpal joints)
Proximal interphalangeal Flexion Range
100° (phalanges)
Proximal Interphalangeal Extension Range
0° (phalanges)
Distal Interphalangeal Flexion Range
90° (phalanges)
Distal interphalangeal Extension Range
20° (phalanges)
What are the Social Determinants of Health
Gender, Ethnicity, Religion, Minority Group Membership, Food Security, Access to Health Care, Community Resources, Education, Living Situation, Income, Employment, Social Support
What is the ICF
Dual Function:
A classification System for describing health (the broader definition which includes participation and quality of life)
A common framework and language — the biopsychosocial model — integration of the ‘medical’ and ‘social’ models of disability and health
ICF Body Functions Definition
The physiological functions of body systems (including psychological functions).
ICF Body Structures Definition
Anatomical parts of the body, such as organs, limbs and their components
ICF Impairments Definitions
Problems in body function and structure, such as significant deviation or loss
ICF Activity Definition
the execution of a task or action by an individual
ICF Activity Limitations Definitions
the difficulties an individual may have in performing activities
ICF Participation Definition
is the involvement in a life situation
ICF Participation restrictions definition
the problems an individual may experience in involvement in life situations
Definitions of Contextual Factors
How the world around you impacts your experience
Environmental Factors
Personal Factors
ICF Environmental Factors Definition
The physical, social and attitudinal environment in which people live and conduct their lives; these are either barriers to or facilitators of the person’s functioning