Walking Analysis Flashcards
What features of walking are observed in the sagittal plane?
- Stride length
- Cadence
- Speed
What features of walking are observed in the frontal plane?
- the size of the base of support: stride width
What features of walking are observed in the transverse plane?
Foot progression angle
Typical stride width?
3-9cm
Typical foot progression angle?
7 degrees of out-toeing (positive foot progression)
What are the 4 groups of phases of walking?
1) Weight acceptance
2) single limb support
3) early swing limb advancement
4) late swing limb advancement
What consists of 60% of gait?
Stance phases
What consists of 40% of gait?
Swing phases
What phases occur during weight acceptance?
Initial contact and loading response
What phases occur during single limb support?
Midstance and terminal stance
What phases occur during early swing limb advancement?
Preswing and initial swing
What phases occur during late swing limb advancement?
Midswing and terminal swing
If the reference phase is in initial contact, what phase is the contralateral limb in?
Terminal stance
If the reference limb is in loading response, what phase is the contralateral limb in?
Preswing
If the reference limb is in midstance, what phases is the contralateral limb in?
Initial swing and mid swing
If the reference limb is in terminal stance, what phase is the contralateral limb in?
Terminal swing and initial contact
If the reference limb is in preswing, what phase is the contralateral limb in?
Loading response
If the reference limb is in initial contact, what phase is the contralateral limb in?
Midstance
If the reference limb is in midswing, what phase is the contralateral limb in?
Midstance
If the reference limb is in terminal swing, what phase is the contralateral limb in?
Terminal stance
What occurs during weight acceptance?
The body’s weight is transferred to the reference limb. Shock absorption is important to ensure efficient energy transfer.
What occurs during single limb support?
The body passes over a stationary foot. A single limb supports the body, and the body moves in front of the reference limb.
What occurs during swing limb advancement?
The reference limb generates momentum through forward propulsion. Initially, this involves pushing off the surface; followed by limb clearance strategies (rapid flexing of the reference limb).
What specifically occurs during late swing advancement?
The reference limb is decelerated.
What occurs during initial contact?
Foot contacts the ground
What occurs during loading response?
Body weight is transferred to the reference limb and chock is absorbed on a flexed limb
What occurs during Midstance?
Body moves over a stationary foot and balance on on foot is maintained
What occurs during terminal stance?
Body progresses past the stationary foot and balance is maintained
What occurs during preswing?
Generation of momentum for forward propulsion for swing limb advancement
What occurs during initial swing?
Clearance of swing limb
What occurs during midswing?
Deceleration of limb
What occurs during terminal swing?
Extended limb for step length and preparation for loading
Number pattern of critical events?
1, 3, 1, 2, 2, 2, 2, 1
What critical event occurs at initial contact?
Heel first contact
What critical events occur at loading response?
- controlled ankle plantarflexion
- controlled knee flexion
- maintenance of hip stability
What critical event occurs during Midstance?
Controlled tibial advancement
What are the critical events of terminal stance?
- controlled ankle dorsiflexion with heel rising
- trailing limb posture
What critical events occur during preswing?
- rapid ankle plantarflexion
- passive knee flexion to 40 degrees
What critical events occur during initial swing?
- maximum knee flexion to 60 degrees
- hip flexion to 15 degrees
What critical events occur during midswing?
- dorsiflexion to 0
- maximum hip flexion to 25 degrees
What critical event occur during terminal swing?
Knee extension to 0 degrees
Kinematics, muscle activation, kinetics, and critical event of the ankle during initial contact?
Kinematics: 0 degrees (neutral)
MA: Tibialis anterior
Kinetics: plantar moment
CE: Heel first contact
Kinematics, muscle activation, kinetics, and critical events at the ankle during Loading Response?
Kinematics: 5 degrees plantarflexion
MA: Tibialis anterior
Kinetics: plantar moment
CE: controlled ankle plantarflexion
Kinematics, muscle activation, kinetics, and critical events at the ankle during Midstance?
Kinematics: 5 degrees dorsiflexion
MA: gastric/soleus
Kinetics: GRF through joint
CE: controlled tibial advancement
Kinematics, muscle activation, kinetics, and critical events at the ankle during terminal stance?
Kinematics: 10 degrees dorsiflexion
MA: gastric/soleus
Kinetics: Dorsi moment
CE: ankle dorsiflexion with heel rise
Kinematics, muscle activation, kinetics, and critical events at the ankle during preswing?
Kinematics: 15 degrees plantarflexion
MA: gastric/soleus
Kinetics: Dorsi moment
CE: rapid ankle plantarflexion
Kinematics, muscle activation, kinetics, and critical events at the ankle during initial swing?
Kinematics: 5 degrees plantarflexion
MA: Tibialis anterior
Kinetics: 0 moment
CE: none
Kinematics, muscle activation, kinetics, and critical events at the ankle during midswing?
Kinematics: 0 degrees
MA: Tibialis anterior
Kinetics: 0 moment
CE: Dorsiflexion to neutral
Kinematics, muscle activation, kinetics, and critical events at the ankle during terminal swing?
Kinematics: 0 degrees
MA: Tibialis anterior
Kinetics: 0 moment
CE: none
Kinematics, muscle activation, kinetics, and critical events at the knee during initial contact?
Kinematics: 0-5 degrees flexion
MA: quads and hamstrings
Kinetics: flexor moment
CE: None
Kinematics, muscle activation, kinetics, and critical events at the knee during Loading Response?
Kinematics: 15 degrees flexion
MA: quads
Kinetics: quads
CE: controlled knee flexion
Kinematics, muscle activation, kinetics, and critical events at the knee during Midstance?
Kinematics: 0-5 degrees flexion
MA: None
Kinetics: GRF goes through joint
CE: None
Kinematics, muscle activation, kinetics, and critical events at the knee during terminal stance?
Kinematics: 0-5 degrees flexion
MA: None
Kinetics: Extensor moment
CE: None
Kinematics, muscle activation, kinetics, and critical events at the knee during preswing?
Kinematics: 40 degrees flexion
MA: None
Kinetics: flexor moment
CE: passive knee flexion to 40 degrees
Kinematics, muscle activation, kinetics, and critical events at the knee during initial swing?
Kinematics: 60 degrees flexion
MA: None
Kinetics: flexor moment
CE: knee flexion to 60 degrees
Kinematics, muscle activation, kinetics, and critical events at the knee during mid swing?
Kinematics: 25 degrees flexion
MA: hamstrings
Kinetics: flexor moment
CE: none
Kinematics, muscle activation, kinetics, and critical events at the knee during terminal swing?
Kinematics: 0-5 degrees flexion
MA: quads and hamstrings
Kinetics: 0 moment
CE: knee extension to 0 degrees
Kinematics, muscle activation, kinetics, and critical events at the hip during initial contact?
Kinematics: 20 degrees flexion
MA: Glut max and hamstrings
Kinetics: flexor moment
CE: none
Kinematics, muscle activation, kinetics, and critical events at the hip during Loading Response?
Kinematics: 20 degrees flexion
MA: glut max
Kinetics: flexor moment
CE: hip stability
Kinematics, muscle activation, kinetics, and critical events at the hip during Midstance?
Kinematics: 0 degrees flexion
MA: None
Kinetics: GRF is through joint
CE: None
Kinematics, muscle activation, kinetics, and critical events at the hip during terminal stance?
Kinematics: 20 degrees extension
MA: None
Kinetics: extensor moment
CE: trailing limb
Kinematics, muscle activation, kinetics, and critical events at the hip during preswing?
Kinematics: 10 degrees extension
MA: Rectus femoris, adductor longus
Kinetics: extensor moment
CE: None
Kinematics, muscle activation, kinetics, and critical events at the hip during initial swing?
Kinematics: 15 degrees flexion
MA: rectus femoris, adductor longus, iliopsoas
Kinetics: 0 moment
CE: flexion to 15 degrees
Kinematics, muscle activation, kinetics, and critical events at the hip during midswing?
Kinematics: 25 degrees flexion
MA: hamstrings
Kinetics: 0 moment
CE: flexion to 25 degrees
Kinematics, muscle activation, kinetics, and critical events at the hip during terminal swing?
Kinematics: 20 degrees flexion
MA: glut max and hamstrings
Kinetics: flexor moment
CE: None
What are the Kinematics and muscle activation at the pelvis during initial contact?
Kinematics: 5 degrees forward rotation
MA: glut medius
What are the Kinematics and muscle activation at the pelvis during Loading Response?
Kinematics: 5 degrees forward rotation
MA: glut medius
What are the Kinematics and muscle activation at the pelvis during Midstance?
Kinematics: 0 degrees rotation; 7 degrees drop
MA: glut medius
What are the Kinematics and muscle activation at the pelvis during terminal stance?
Kinematics: 5 degrees backward rotation; 7 degrees drop; 4 degrees anterior tilt
MA: glut medius
What are the Kinematics and muscle activation at the pelvis during preswing?
Kinematics: 4 degrees anterior tilt
MA: None
What are the Kinematics and muscle activation at the pelvis during initial swing?
Kinematics: 0 degrees rotation
MA: None
What are the Kinematics and muscle activation at the pelvis during midswing?
Kinematics: 0 degrees rotation
MA: None
What are the Kinematics and muscle activation at the pelvis during terminal stance?
Kinematics: 5 degrees forward rotation
MA: glut medius
What are the Kinematics and muscle activation at the trunk during initial contact?
Kinematics: erect
MA: trunk extensors
What are the Kinematics and muscle activation at the trunk during Loading Response?
Kinematics: erect
MA: trunk extensors
What are the Kinematics and muscle activation at the trunk during Midstance?
Kinematics: erect
MA: abdominals
What are the Kinematics and muscle activation at the trunk during terminal stance?
Kinematics: erect
MA: abdominals
What are the Kinematics and muscle activation at the trunk during preswing?
Kinematics: erect
MA: trunk extensors
What are the Kinematics and muscle activation at the trunk during midswing?
Kinematics: erect
MA: abdominals
What are the Kinematics and muscle activation at the trunk during initial swing?
Kinematics: erect
MA: abdominals
What are the Kinematics and muscle activation at the trunk during terminal swing?
Kinematics: erect
MA: abdominals
Maximum ankle dorsiflexion occurs at what phase?
10 degrees at terminal stance
Maximum ankle plantarflexion occurs at what phase?
15 degrees at preswing
The largest positional change at the ankle occurs between what 2 phases/
Between terminal stance and preswing
What muscle is primarily active during weight acceptance to absorb shock and during swing limb advancement to clear the limb?
Tibialis anterior
What muscle is primarily active during single limb support phases to stabilize the tibia and during preswing to promote knee flexion?
Gastroc/soleus
Most of the joint moments at the ankle occur during what type of phases?
Stance phases
The largest joint moment at the ankle occurs at what phase? What type of moments is it?
Flexor moment at preswing
The 15 degrees of knee flexion at loading response supports what?
Shock absorption
The 60 degrees of knee flexion at initial swing supports what?
Limb clearance
At weight acceptance, what muscle group is activated to stabilize the hip?
Hamstrings
What muscle group are active during terminal swing to decelerate the tibia?
Hamstrings
What muscle group is primarily active at weight acceptance for shock absorption?
Quadriceps
What muscle group is active at terminal swing to extend the limb?
Quadriceps
The joint moments at the knee are highest during what phases? What type of moments?
Flexor moments at weight acceptance and initial swing
Hip flexion is greatest at what phase?
Midswing
The rectus femoris and adductor longus are active primarily at what 2 phases/
Preswing and initial swing
Rectus femoris and adductor longus function to support what?
Hip flexion and knee flexion
During phases of hip flexion, the pelvis rotates in what direction?
Anterior
During phases of hip extension, the pelvis rotates in what direction?
Posterior
Gluteal muscles are most active during what phase?
Weight acceptance
What observations are included in the broad perspective?
- ability to simultaneously control multiple degrees of freedom (smoothness of motion)
- symmetry
- pace
- BOS
- ability to perform basic criteria for walking
BOS includes what?
- step length
- foot progression angle
- step width
Basic criteria for walking includes what?
- the ability to absorb shock during WA
- support the body on a single limb
- generate forward propulsion
- clear the swing limb
- decelerate the swing limb
What observations are included in the detailed perspective?
The 14 critical events
Common deviations in older adults?
- reduced time spent in single limb stance phases
- increased time in phases of double limb support
- limited time in terminal stance
- less hip extension
- difficulty modifying gait
Common deviations in young children?
- forefoot or foot flat contact
- limited ability to absorb shock at WA
- knee flexion and hip flexion at LR may not be observed until 4 years old
- less time in single limb stance phases
- limited hip extension at terminal stance
- less gait speed
Children have an adult like gait pattern by what age?
7 years old
Measures which are time or speed based include?
- ten meter walk test
- 6 minute walk test
- four square step test
Measures which are score based include?
- functional gait assessment
- dynamic gait index
- gross motor function measure
Measures designed for adults include?
- ten meter walk test
- 6 minute walk test
- four square step test
- functional gait assessment
- dynamic gait index
Measures designed for children include?
- ten meter walk test
- 6 minute walk test
- dynamic gait index
- gross motor function measure