Gait Flashcards
How the body connects to the floor is part of which phase?
- Stance Phase
Initial Contact and Loading Response are considered?
- 2 most important
- building block for foundation
Gait is a controlled?
- Fall
Feet should be ________ apart during normal gait?
2-4 Inches
Ground Reaction Force
- is defined as the net vertical and shear or horizontal forces acting between the foot and the supporting surface.
Stance Phase “RLA”
- Initial Contact
- Loading Response
- Midswing
- Terminal Stance
- Preswing
Initial Contact Degrees and Percent
0%
- Ankle: 0 Deg
- Knee: 0-5 Deg
- Hip: 20 Deg Flex
- Pelvis: 5 Deg FWD Rot
Loading Response Degrees and Percent
0-12%
- Ankle: 5 Deg PF
- Knee: 15 Deg Flex
- Hip: 20 Deg Flex
- Pelvis: 5 Deg FWD Rot
Midstance Degrees and Percent
12%-31%
- Ankle: 0-5 Deg DF
- Knee: 0-5 Deg Flex
- Hip: 0 Deg
- Pelvis: 0 Deg
Terminal Stance Degrees and Percent
31%-50%
- Ankle: 10 Deg DF
- Knee: 5 Deg Flex
- Hip: 20 Deg Ext
- Pelvis: 5 Deg BKWD Rot
- Toes: 30 Deg MTP Ext
Preswing Degrees and Percent
50%-62%
- Ankle: 15 Deg PF
- Knee: 40 Deg Flex
- Hip: 10 Deg Ext
- Pelvis: 5 Deg BKWD Rot
- Toes: 60 Deg MTP Ext
MM’s of Initial Contact
- Hamstring (Eccentric)
- Quadriceps (Eccentric)
- Pretibial (Eccentric)
MM’s of Loading Response
- Quadriceps (Eccentric) MAIN MM
- Pretibial (Eccentric)
MM’s of Midstance
- Gluteus Medius (Eccentric)
- Calf mm’s (Eccentric)
MM’s of Terminal Stance
- Gluteus Medius (Eccentric)
- Calf mm’s (Concentric) MAIN MM
MM’s of Preswing
- Iliopsoas (Concentric)
MM’s of Initial Swing
- Iliopsoas (Concentric)
- Hamstring (Concentric)
- Pretibial (Concentric)
Initial Swing Degrees and Percent
62%-75%
- Ankle: 5 Deg PF
- Knee: 60 Deg Flex
- Hip: 15 Deg Flex
- Pelvis: 5 Deg BKWD Rot
Midswing Degrees and Percent
75%-87%
- Ankle: 0Deg
- Knee: 25 Deg Flex
- Hip: 25 Flex
- Pelvis: 0 Deg
Terminal Swing Degrees and Percent
87%-100%
- Ankle: 0 Deg
- Knee: 0-5 Deg Flex
- Hip: 20 Deg Flex
- Pelvis: 5 Deg FWD Rot
MM’s of Midswing
- Pretibials (Concentric)
Mm’s of Terminal Swing
- Hamstrings (Eccentric)
- Pretibials (Concentric)
What is normal walking speed?
1.2-1.4 Meters per sec
How many meters per/sec does a individual need to cross the street safely?
.8 meters per/sec
Objection for Initial Contact?
- Position to begin weight acceptance
Objection for Loading Response?
- Shock Absorption
- Forward progression
- Weight bearing stability
Objective for Midstance?
- Continue forward projection, trunk and limb stability
Objective for Terminal Stance?
- Forward projection
Objective for Preswing?
- Prepare limb for swing
Ankle Pronation occurs when?
- Loading Response
Ankle Pronation is stable/unstable?
- Unstable
Ankle Supination occurs when?
- Terminal Stance
Initial Contact GRF
- Lined up through the hip, knee and ankle
Loading Response GRF
Behind the knee
Midstance GRF
- Front of ankle
Terminal Stance GRF
- Slight anterior knee
- Anterior ankle
Preswing GRF
- Behind the knee
- Front of ankle
Heel Rocker occurs when?
- Initial Contact through Loading Response
- Ankle stays in Flex as body rolls over
Ankle Rocker occurs when?
- End of Loading Response through Midstance
- Talocrual Joint
Forefoot Rocker occurs when?
- Terminal Stance through Preswing
- MTP Joint
