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KINE301 > Control of Locomotion > Flashcards

Control of Locomotion Flashcards

1
Q

Why study Gait?

A

1) Key activity of daily living
* primary mode for locomotion,balance, & excercise
2) Excellent functional test of many symptoms
3) Provides insight
* rehabilitation

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2
Q

What does Complex and Dynamic gait require?

A

Complex:

Dynamic:

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3
Q

Who is Jacquelin Perry, and what did she do?

A

Orthopedic Surgeon/Physical Therapist
Researching:
*gait analyisis
*pathokinesiology lab

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4
Q

Generally, define the phases of Gait….

A

….

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5
Q

What is Old theory: 6 Determinants of Gait?

A

Ensure mass is in a straight line as you walk

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6
Q

What are the 6 determinants of gait?

A

1) Pelvic Rotation (transverse plane)
2) Pelvic tilting (frontal plane)
3) knee flexion in the stance phase
4) Dorsiflexion to plantarflexion at ankle durin stance
5) Synergy between knee and ankle mechanisms during stand
6) Lateral displacement of body with each stride

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7
Q

What are problems with determinants of Gait?

A
  • first 3 “determinants” don’t contribute as much

* Keeping mass straight actually uses more energy consumption

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8
Q

Walking Gait Cycle involves ______ Phase?

A

2 double support Phase (both feet in contact with ground)

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9
Q

Running Gait Cycles involves _____ Phase?

A

Flight phase ( no contact with ground)

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10
Q

Timing of Gat Phases is a stance and swing consistence at?

A

60/40%

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11
Q

What are notes to remember about robotic Asimo walk?

A
  • Old man walking called Zero Moment Point Control

* Inefficient way to walk & unstable

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12
Q

What are notes to remember about the passive dynamic walker?

A
  • no motor & passive
  • Dynamic center of mass can travel outside base support
  • Resembles a healthy human gait (redirecting & accelerating center of mass each step)
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13
Q

What can be suggested since the Passive Dynamci Walker looks like a human?

A
  • Relies more on natural physics movement
  • Less active control of movement and stability

Someone afraid of falling will “over control” their gait & being less steady

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14
Q

What is the Heirarchial control of locomotion?

A

….

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15
Q

How is it possible that your spinal cord can make locomotion?

A

*Group of neurons are capable of generating output in absence of phase inputs (brain or sensory information)

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16
Q

Where are the neurons capable of generating walking are located?

A

Lumbar Spinal Cord

17
Q

What is a Central Pattern Generator?

A

…

18
Q

What was found in the study of (Barbeau and Rossignol, 1987) for the CPG?

A

….

19
Q

What can the Spinal Cord do as a Centeral Pattern Generator?

A

…

20
Q

What is Locomotor training?

A

Type of rehabilitation, where therapists help patients move their legs when places on a treadmill

21
Q

What are (3) reasons for locomotor Training?

A

1) Increase Spinal Plasticity (incomplete injury)
2) Begin learning after regenerative therapy
3) Begin stepping without input from brain (complete injury)

22
Q

What did Ray de Leon, V. Reggie Edgerton from UCLA find?

A

Faster speed of walking improves than no training

23
Q

What was found in Wernig et al. 1995 find in their study?

A

….

24
Q

How is gait velocity related to stride length and cadence?

A

As your feet turnover happen faster, your velocity will improve

*Longer stride length proves to be more stable

25
Q

Why is knee flexion free when using leading joint of hip?

A

Shin is stable as your knee lifts from the hip

26
Q

ACL Injury is a comon gait pathology. What is Quadricepts Avoideance (ACL injury)?

A

….

Solution:

27
Q

Trendelenberg (abductor weak) is a common Gait pathology. What is Trendelenberg (abductor weak)?

A

….

28
Q

Gluteus Medius Lurch is a common gait pathology. What is Gluteus Medius Lurch?

A

…

29
Q

What is Dorsiflexor Weakness?

A

….

30
Q

What is Quadriceps Weakness?

A

…

31
Q

What is Circumduction

A

…

KINE301 (13 decks)

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