Muscle injury

Last revised by Ashesh Ishwarlal Ranchod on 25 Sep 2023

Muscle injuries is a broad term encompassing many pathologies and these are common injuries in both elite and amateur athletes as well as in the general population. 

Typically, muscle injuries present with pain and loss of function. Clinically, they can be graded as 1:

  • grade 1: no appreciable muscle tearing, <5% loss of function/strength
  • grade 2: damage to the musculotendinous junction (MTJ); reduced strength; some residual function
  • grade 3: complete tear of the MTJ; loss function +/- a palpable gap

Muscle injuries can consist of 1-3:

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Cases and figures

  • Case 1: rectus femoris muscle contusion
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  • Case 2: DOMS
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  • Case 3: Rectus femoris distal MTJ rupture
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  • Case 4: quadriceps muscles injury
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  • Case 5: adductor longus tear
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