Muscle Imbalance?

“The reason you have that injury is because you have a muscle imbalance.”

“Oh, I have some questions…”

  • Did you compare peak force or average force?
  • Did you use yourself as the testing instrument? How do you know it’s not your muscle imbalances we’re testing?
  • Is it structural or functional?

MORE: Don't just believe the evidence, ask about the 'Silent Evidence'

  • What ROM did you use?
  • Were the muscles/movements measured at the same velocity?
  • What muscle contraction type did you compare? Concentric to concentric? Eccentric to eccentric? Concentric to eccentric? Eccentric to concentric? (You get the picture).
  • Is the imbalance a strength issue? Speed issue? Skill issue? Endurance issue? Rate of force development issue? Or a fear issue?
  • Was it in a seated position? Prone? Supine? Standing? Walking? Running? Cycling? Bracing?
  • Is it a cause of the injury or a symptom of the injury?
  • What would you say was my level of arousal during the test?
  • Did you use an isolated test or an integrated test?
  • Assuming the muscle crosses two joints, which joint action did you choose to test?

MORE: For Athletes Only. 

  • For my sport/position/body type/chronological age/training age/ etc, what should the ‘ideal ratio’ be?
  • How do you know that athletes in my sport don’t succeed because of that supposed imbalance?
  • If I do have an imbalance why didn’t the injury happen sooner?

Grant Jenkins is a Physical Performance Coach who has a lot more questions than answers. Follow him on Twitter @Grant_Jenkins. 

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