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Bent Knee Stretch Test

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Other Names

Bent Knee Stretch Test
Demonstration of the Bent Knee Stretch Test[1]
  • Bent-knee stretch test
  • BK stretch test


  • Evaluates Hamstrings as a cause of hip or thigh pain


  • The patient is supine
  • The hip and knee are maximally flexed
  • The examiner slowly straightens the leg
  • Positive test:
    • Reproduction of the patients pain



Proximal Hamstring Tendinopathy[2]

  • Cacchio et al
    • Sensitivity: 0.84
    • Specificity: 0.87
    • PPV: 0.86
    • NPV: 0.85
    • LR+: 6.5
    • LR-: 0.18

See Also


  1. Ahmad, Christopher S., et al. "Evaluation and management of hamstring injuries." The American journal of sports medicine 41.12 (2013): 2933-2947.
  2. Cacchio, Angelo, et al. "Reliability and validity of three pain provocation tests used for the diagnosis of chronic proximal hamstring tendinopathy." British journal of sports medicine 46.12 (2012): 883-887.
Created by:
John Kiel on 19 August 2020 16:28:08
Last edited:
13 July 2023 18:46:53