Gait Review Flashcards
what occurs during the first rocker?
motion of the foot from a DF to a PF position during LR to achieve foot flat
what occurs during the second rocker?
closed chain advancement of the tibia into DF position over a fixed foot during MSt
what occurs during the third rocker?
begins with COP is over the metatarsals and heel lift occurs in TSt/PSw
describe what occurs in IC and the critical events that occur in the phase of gait
this is the instant the foot hits the ground
critical events → heel first contact
describe the relative position of each joint in the LE in IC
Hip → 20º flexion
Knee → 0-5º flexion
Ankle → 0º
what major muscle groups are working during IC?
hip extensors
quadriceps
pretibials
describe what occurs in LR and the crucial events that occur in this phase of gait
shock is absorbed as forward momentum is preserved. A foot flat position is achieved
critical events → hip stability, controlled knee flexion and ankle PF
describe the relative postion of each joint in the LE during LR
Hip → 20º flexion
Knee → 15º flexion
Ankle → 5º PF
what major muscle groups are working during LR?
hip extensors and abductors
quadriceps
pretibials
describe what occurs in MSt and the critical events that occur in this phase of gait
the body progresses over the foot in a controlled manner. First instance of single limb support
critical events → controlled tibial advancement
describe the relative position of each joint in the LE during MSt
Hip → 0º
Knee → 5º flexion
Ankle → 5º DF
what major muscle groups are working during MSt?
Hip abductors
quadriceps start to quiet
gastroc-soleus
describe what occurs in TSt and the critical events that occur in this phase of gait
progression over the stance limb continues past the forefoot. Body is ahead of stance limb
critical events → controlled ankle DF w/heel rise
describe the relative position of each joint in the LE during TSt
Hip → 20º extension
Knee → 5º flexion
Ankle → 10º DF
what major muscle groups are working during TSt?
mostly just gastroc-soleus
describe what occurs during PSw and the critical events that occur in the phase of gait
rapid unloading of limb with weight transfer to opposite limb, starting the second period of double limb support
critical events → passive knee flexion to 40º, ankle PF, and 60º of MTP extension
describe the relative position of each joint in the LE during PSw
Hip → 10º extension
Knee → 40º flexion
Ankle → 15º PF
MTP → 60º extension
what major muscle groups are working during PSw?
hip adductors
as we progress through this phase tibialis anterior starts to activate going into ISw
describe what occurs during ISw and the critical events that occur during this phase of gait
the thigh begins to advance as the foot leaves the floor
Critical events → hip flexion, knee flexion
describe the relative position of each joint in the LE during ISw
Hip → 15º flexion
Knee → 60º flexion
Ankle → 5º PF
what major muscle groups are active during ISw?
Hip flexors
knee flexors
pretibials
describe what occurs during MSw and the critical events that occur during this phase of gait
thigh continues to advance, knee beings to extend as foot clearance is maintained
Critical events → continued hip flexion, foot clearance
describe the relative position of each joint in the LE during MSw
Hip → 25º flexion
Knee → 25º flexion
Ankle → 0º DF
what major muscle groups are active during MSw?
Hip flexors
knee flexors
pretibials
describe what occurs during TSw and the critical events that occur in this phase of gait
the leg reaches out to achieve step length
critical events → knee extension
describe the relative position of each joint in the LE during TSw
Hip → 20º flexion
Knee → 5º flexion
Ankle →0º DF
what major muscle groups are active during TSw?
Hip extensors
Quadriceps
pretibials
