Posterior internal impingement test :

• This test is used by to therapist or doctor for check to impingement of shoulder .
• It is check during to examination part of to assessment .
• Internal impingement is to common cause of to shoulder pain into overhead athletes.
• This Internal impingement is mostly occurs who have hold to their arm into vulnerable position .
• This Internal impingement is commonly described by of to condition which is characterized by excessive or repetitive contact between of to posterior aspect of greater tuberosity of to humeral head & posterior-superior aspect of to glenoid border .
• When to arm is placed into extreme ranges of to abduction & external rotation means lateral rotation .
• It is ultimately leads to impingement of to rotator cuff tendons means supraspinatus or infraspinatus & to glenoid labrum.

Purpose of to test :

• It is used to for to check the posterior internal impingement of shoulder.
• It is also used to check the rotator cuff impingement of shoulder .

How do you perform of this test ?

• Starting position is supine .
• In the supine position examiner is do to passively abducted to shoulder up to 90 ‘ to 110 ‘ with extension of shoulder is 15 ‘to 20’ & do to maximum lateral rotation means external rotation .
• This impingement is mostly occurs when to arm is abducted or extended beyond to coronal plane & laterally rotated .

Result of this test ?

• This test is considered to positive when to patient is elicits localized pain into posterior shoulder .
• This result is of a kissing labral lesions posteriory .
• The resulting impingement is between to rotator cuff & grater tubersoity onto one hand & posterior glenoid & labrum on to other .
• This is often accompanies with to anterior instability or pseudo laxity , so that deltoid activity is increase to compensate with to weakened of rotator cuff muscle .
• Patient complain of pain posteriorly in late cocking & early acceleration phase of throwing .