Gait Knee » History » Version 1
Árni Þorvaldsson, 2012-01-18 12:41
put in my notes about the knee from class on the 17th
| 1 | 1 | Árni Þorvaldsson | h1. Gait Knee |
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| 2 | |||
| 3 | |||
| 4 | |||
| 5 | *stance phase* 60% |
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| 6 | flexion-extension-flexion |
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| 7 | |||
| 8 | *swing phase* 40% |
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| 9 | extension |
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| 10 | |||
| 11 | |||
| 12 | |||
| 13 | *initial contact* |
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| 14 | extension (-2-5°flexion) |
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| 15 | |||
| 16 | by keeping knee extended we keep stability |
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| 17 | |||
| 18 | *loading response* |
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| 19 | flexion (15°) |
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| 20 | shock absorption |
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| 21 | |||
| 22 | *mid stance* |
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| 23 | 5°increased flexion, then extends to 12°flexion |
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| 24 | to keep stability |
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| 25 | |||
| 26 | *terminal stance* |
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| 27 | completion of extension, then flexion starts again at the end. |
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| 28 | |||
| 29 | *pre swing* |
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| 30 | flexion(up to 40°) |
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| 31 | to prepare for the swing |
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| 32 | |||
| 33 | *swing* |
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| 34 | extension |
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| 35 | |||
| 36 | |||
| 37 | |||
| 38 | |||
| 39 | people with prostetics have more knee flexion |
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| 40 | |||
| 41 | *implementation* |
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| 42 | simple hince joint. |
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| 43 | |||
| 44 | rotation in knee |
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| 45 | there has to be some rotation in the knee, otherwise it would be torque in the joint. |
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| 46 | easiest to have the rotation below the knee |