Session 7-Gait Flashcards
What is gait?
Mechanism by which body is transported using coordinated movements of the major lower limb joints
What are the five attributes of gait?
1) stability in stance
2) foot clearance in swing
3) pre-positioning for initial contact
4) adequate step length
5) energy conservation
What does the gait cycle describe?
Period of time from initial contact to next initial contact on the same side
What makes up 60% of the gait cycle?
Stance phase
What makes up 40% of the gait cycle?
Swing phase
What is double support?
Both feet on the ground at the same time
What is double float?
Overlapping swing phase - neither foot is in contact with the ground
What are the five stages of the stance phase?
1) initial contact (heel strike)
2) loading response
3) mid-stance (foot flat)
4) terminal stance (heel off)
5) pre-swing (toe off)
What are the three stages of the swing phase?
1) initial swing
2) mid-swing
3) terminal swing
Define stride
Distance from initial contact of one foot to initial contact of same foot
Define step
Distance from initial contact of right foot to initial contact of left foot
Define cadence
Steps per minute
What do kinematics describe?
Motion:
- joint angles
- displacements
- velocities
- accelerations
What do kinetics describe?
Things that cause motion:
- forces
- moments
How many rockers are in the stance phase?
3
