Term
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Definition
| Change of structure, position, or fx of one part in an attempt by the body to adjust to a deviation of structure, position, or fx of another part. |
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Term
| What are the 2 forms of Compensation? |
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Definition
| Normal and Abnormal (Good and Bad) |
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Term
| What 2 structures usually accomplish Normal Compensation? |
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Definition
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Term
| What does the STJ and MTJ do to compensate Abnormally? |
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Definition
| Pronate or Supinate (Reccurent or persisten demand for this compensation may result in Pathology) |
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Term
| What are the Primary joints for compensation in the Lower Extremity? |
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Definition
| MTJ and STJ (Primary Joint of Primary Joints) |
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Term
| Why are the STJ and MTJ the Primary sties for Compensation? |
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Definition
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Term
| T/F Compensation usually only in one plane, however will not casue abnormal motion in the other two planes? |
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Definition
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Term
| What 2 terms are used to describe direction of Compensation? |
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Definition
| Pronatory Comp. and Supinatory Comp |
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Term
| What does Pronation of the STJ do to the RF? |
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Definition
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Term
| What does Supination of the STJ do to the RF? |
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Definition
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Term
| T/F While the STJ moves the forefoot attempts to remain in contact with the ground? |
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Definition
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Term
| The motion of the FF in relation to the STJ is dependent on what structure? |
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Definition
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Term
| When does the MTJ lock on the RF? |
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Definition
| When both the LMTJ and OMTJ axis are MAXIMALLY PRONATED |
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Term
| What are 2 things that determin the MTJ's ability to compensate for RF position? |
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Definition
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Term
| What is the FF compensation for STJ pronation (RF eversion)? |
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Definition
| FF Inversion (LMTJ supination) |
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Term
| T/F The RF and FF must have the same number of degrees of Eversion and Inversion for compensation to occur? |
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Definition
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Term
| T/F If the FF cannot invert the same numbers of degrees as the RF everts then there is NO RF pronation, and no compensation? |
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Definition
| FALSE, there is partiall compensation |
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Term
| What is the result of normal compensation? |
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Definition
| 1st Ray dorsiflexes, MTJ unlocks, and foot bears weight primarily on 2nd Met Head. |
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Term
| T/F The FF can compensate for RF supination? |
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Definition
| FALSE, as the calcaneus inverts with STJ supination, FF also inverts. |
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Term
| Why can't the FF compensate for RF supination? |
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Definition
| The FF can't evert b/c the MTJ is locked (FULLY pronated) |
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Term
| What happens in the RF when the angle of tilt exceed the amount of inverison available at the FF? |
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Definition
| The RF invers the extra degrees required for compensation. |
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Term
| What does the RF do when the angle of tilt does not exceed amount of inversion available at the FF? |
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Definition
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Term
| When terrain beneath the FF is tilted so that the FF is everted the RF will ever with the FF. Why? |
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Definition
| B/c the MTJ is locked (FULLY pronated) and cannot allow the FF to evert anymore independent of the RF. |
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Term
| Why does the FF end up everting slighty more than the RF when the terrain beneath the FF is tilted so that the FF is everted? |
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Definition
| B/c the STJ pronaiton will free some eversion of the FF. (The locking position of the MTJ becomes more and more everted as the STJ pronates) |
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Term
| T/F A sudden demand for STJ supination can result in instability leading to equilibrium loss and possible lateral instability? |
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Definition
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Term
| What is the most common cause for the "I've fallen and I can't get up syndrom"? |
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Definition
| Sudden demand for STJ supination. |
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Term
| T/F the FF can compensate for STJ eversion? |
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Definition
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Term
| What is Abnormal Compensation? |
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Definition
| Compensation at the MTJ or STJ to an abnormal structural or positional deviation in the Lower Extremity. |
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Term
| Abnormal Compensation results in one or both of what 2 thing? |
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Definition
| Abnormal Locomotor Fx and/or Position of the Foot. |
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Term
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Definition
| Structural Inversion of the FF on the RF when the MTJ is Locked. |
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Term
| What is the compensation in the STJ through Midstance and Propulsion, for FF Varus? |
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Definition
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Term
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Definition
| RF STJ Neutral position is Inverted |
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Term
| What is the copensation seen for RF Varus? |
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Definition
| STJ Pronation during Midstance to equalize ground reactive forces across the plantar heel. |
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Term
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Definition
| Soft tissue (not bone) contracture causing FF to be inverted on the RF. |
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Term
| What is the Compinsation for FF Supinatus? |
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Definition
| Supination of the LMTJ creating osseous instability of FF. |
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Term
| What causes FF Supinatus? |
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Definition
| Tight Gastro/Soleus Complex |
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Term
| What is Rigid Plantar-Flexed 1st Ray? |
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Definition
| The 1st Met is structurally plantarflexed |
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Term
| What is the Compensation for Rigid Plantar-Flexed 1st Ray? |
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Definition
| Supinaiton of the STJ in Contact Period. (Should be Pronated) |
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Term
| What can result form Rigid Plantar-Flexed 1st Ray? |
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Definition
| Muscle imbalance and possible lateral instability. |
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Term
| T/F Compensation is usually Good in the Foot? |
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Definition
| FALSE, usually leads to Pathology. (No compensation is also very bad) |
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