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What is the fifth kinematic principle of abduction?
What is the fifth kinematic principle of abduction?
- The clavicle rotates anteriorly around its own long axis
- The clavicle rotates laterally around its own long axis
- The clavicle rotates medially around its own long axis
- The clavicle rotates posteriorly around its own long axis (correct)
Which joint motion is described as one of the primary SC joint motions?
Which joint motion is described as one of the primary SC joint motions?
- Anterior rotation
- Lateral rotation
- Medial rotation
- Posterior rotation (correct)
How many degrees of posterior clavicular rotation during abduction have been reported in studies?
How many degrees of posterior clavicular rotation during abduction have been reported in studies?
- 10-15 degrees
- 20-35 degrees (correct)
- 40-55 degrees
- 60-75 degrees
Which in vivo study shows that posterior rotation at the SC joint is the most predominant motion of the clavicle during scapular plane abduction?
Which in vivo study shows that posterior rotation at the SC joint is the most predominant motion of the clavicle during scapular plane abduction?
At which ranges of shoulder abduction does most of the rotation occur?
At which ranges of shoulder abduction does most of the rotation occur?
What did the in vivo study on subjects diagnosed with subacromial impingement syndrome show regarding posterior rotation of the clavicle throughout abduction in the scapular plane?
What did the in vivo study on subjects diagnosed with subacromial impingement syndrome show regarding posterior rotation of the clavicle throughout abduction in the scapular plane?
What is the most predominant motion of the clavicle during scapular plane abduction?
What is the most predominant motion of the clavicle during scapular plane abduction?
What is the SC joint?
What is the SC joint?
What is subacromial impingement syndrome?
What is subacromial impingement syndrome?
Which range of shoulder abduction is affected in subacromial impingement syndrome?
Which range of shoulder abduction is affected in subacromial impingement syndrome?
Which type of motion is predominant during scapular plane abduction?
Which type of motion is predominant during scapular plane abduction?
What type of sensors were used in the in vivo studies mentioned in the text?
What type of sensors were used in the in vivo studies mentioned in the text?
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