KnB Normal Gait Flashcards
Gait Cycle Mnemonic
I Love Many Types of Pussy In My Tesla
- I
- Initial Contact
- Love
- Loading phase
- Many
- Midstance
- Types of
- Terminal stance
- Pussy
- Pre swing
- In
- Initial swing
- My
- Mid swing
- Tesla
- Terminal swing
Gait basics:
- Cyclical
- coordinated jt motion, sensory INput, motor OUTput
- “controlled forward fall”
- coord
- balance
- strength
- sensory INput
- jt integrity
Stance phase is
60%
Swing phase is
40%
Gait BEGINS and ENDS w/ what?
Consecutive ground contact of SAME FOOT
2 Phases of Gait Cycle:
- Stance
* Time reference foot is on GROUND
* 60^
- Stance
- Swing
* Time reference foot is NOT TOUCHING GROUND
* 40%
- Swing
Limb phases of gait
- Double limb support
-
TWO brief pds when BOTH limbs in contact w/ ground
- 20%
-
TWO brief pds when BOTH limbs in contact w/ ground
- Single limb support
-
Rest of cycle
- 80%
-
Rest of cycle
Stance Phase
Rancho Los Amigos
60% of Gait
I Love Many Types of Pussy
Initial contact
Loading response
Midstance
Terminal swing
Preswing
What are the Tasks of Stance Phase?
- support/fall prevent
- wt. acceptance
- shock absorb
- force prod. to produce forward progress
Normal Gait “Rockers”: 3
Only in STANCE !!!
- Heel rocker
- Ankle rocker
- Forefoot rocker
Initial Contact
moment foot touches floor
- Heel contact
-
Tasks:
- proper pos. of foot to begin stance phase
Loading Response
IC until opposite foot comes OFF floor
*1st of TWO double limb support pds
-
Tasks:
- wt. acceptance, shock absorption
Midstance
*start of Single limb support
- Begins when non-reference (opp. foot) lifts off and continues until body is aligned directly over foot on ground
-
Tasks:
- progression from heel-ankle rocker
- momentum transfer
Terminal Stance
- Concludes single limb support
- Begins when reference limb heel rises and ENDS when opp foot hits ground
-
Tasks:
- progression of body PAST forefoot rocker
Preswing
*Reference leg ABOUT TO swing
- 2nd of 2 double limb support phases
- BEGINS w/ IC of opp foot and ENDS w/ toes off on reference limb
-
Tasks:
- position limb for swing
Swing phase
Rancho Los Amigos
In My Tesla
- Initial swing
- Mid swing
- Terminal Swing
Tasks of Swing Phase
- limb clearance
- Limb placement
- momentum transfer
Initial Swing
- begins w/ lift off of reference foot ENDS w/ ref foot is just OPP non-ref stance limb
-
Tasks:
- limb advancement, foot clearance
Midswing
- STARTS when ref limb is OPP non-ref stance limb ENDS when the tibia is VERT to ground (ref leg)
-
Tasks:
- limb advance, foot clearance
Terminal Swing
- BEGINS when tibia is vertical to ground, ENDS w/ next initial contact
-
Tasks:
- completeslimb advance,preps limb for wt acceptance
NO wt. acceptance during________
Stance phase!!!
Step length===
dist b/w ground contact of one foot TO opp foot
Stride length ====
1 complete gait cycle
dist. b/w consecutive steps
Clinical issues related to Foot angle and Gait
-
In-Toeing
- pigeon toed
- INCs motion needed @ ankle (talocrural) jt
- narrows BOS
-
Out-Toeing
- DECd motion needed @ ankle BUT INCs subtalar motion
- INCs BOS
Time-Distance Parameters
Stride (cycle) time
1.0-1.2 m/sec
Time-Distance Parameters
Stride Length
1.2-1.9m
Time-Distance Parameters
Step Length
.56-1.1 m
Time-Dist parameters
Step Width
7.7-9.6cm
Time-Dist parameters
Cadence
90-140 step/min
Time-Dist parameters
Velocity
.9-1.8 m/sec
Tips for Gait Analysis
- Dynamic process
- think about direction things are moving, NOT STATIC POS.
- Be clear w/ eccentric vs. concentric
- gait is mostly eccentric ****
- Recognize that in stance we are talking Closed Chain and in swing we are talking Open Chain