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Internal Rotation Resistance Test

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Internal Rotation Resistance Test
Demonstration of the Internal Rotation Resistance Test[1]
  • Internal Rotation Resistance Test
  • IRRT
  • Internal Rotation Resistance Strength Test
  • IRRST

Purpose

  • Evaluate for causes of shoulder pain
  • Attempt to distinguish between extra-articular and intra-articular causes of shoulder pain

Description

  • Patient is standing, examiner behind patient
  • Arm is abducted to 90°, externally rotated to 80°
  • Ask the patient to externally rotate isometrically, and then internally rotate isometrically
  • Positive test for impingement
    • Strength in external rotation, weakness in internal rotation

Pathology

Evidence

Intra-articular Pathology

  • Zaslav et al
    • Sensitivity: 88%[1]
    • Specificity: 96%
    • PPD: 88%
    • NPD: 96%
    • Accuracy: 94.5%

See Also

References

  1. ↑ 1.0 1.1 Zaslav KR. Internal rotation resistance strength test: a new diagnostic test to differentiate intra-articular pathology from outlet (Neer) impingement syndrome in the shoulder. J Shoulder Elbow Surg. 2001 Jan-Feb;10(1):23-7.
Created by:
John Kiel on 17 March 2020 15:19:04
Authors:
Last edited:
30 December 2025 14:38:43
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