Locomotion Flashcards
What is the transition speed from walking to running?
2.5m/s
What is discontinuous transitions? Walking? Running?
Walking is a series of controlled falls
Running is a series of controlled leaps
Explain the walk to run transition
Energy requirement for walking begins to exceed the energy required to run at speeds around 2.5m/s
_________ transitions in behaviour may be _______________
Transitions, discontinuous
What is anti-phase movements?
One flexes while the other one extends
When do anti-phase movements become unstable?
At high frequencies?
What is in-phase movement?
Both flex and extend together
Berstein
- Rejected 1:1 relationship between neural codes and degrees of freedom
- Soft assembly of components
What is soft assembly?
Assmebly based mostly on the physics of the body
Every movement gives us more information on how our body is in a given situation
Based on experience and practice
Explain neural commands during gait
Neural commands during gait show less pattern than the actual movements of the legs
What do motor commands provide?
Motor commands provide the inertial push. With the momentum can rely on body mechanics and the cortex is just input to keep the gait on track.
What is a stride?
From one stance phase to the next
What is a step?
Single landing of the foot
What is stance phase?
Leg when it’s in contact with the floor
What is swing phase?
When the leg lifts clear of the floor
