Why are My Shoulders so Asymmetrical?

Have a PT measure leg lengths.
Leg length discrepancy can be evened with a single heel lift.

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This is a great discussion where it is near impossible to tell exactly what’s wrong OR if anything is wrong.

I threw a few of the photos that help us see symmetry the best. The left one had to be adjusted to frame to 90deg (it was only 2deg off). But the lines help us see more precise alignment, which can be hard to do depending on the camera’s lighting and @MH1 's position.

Posture and physique

  • The left picture is best, but there is a Left Rotation to your torso (slight)—more full Right Lat presentation and abdominal/oblique vs. Middle photo too.
  • Middle is the original, but you have flex and slight flexion of the Left Knee, so posture is thrown off above — more full Left Lat presentation and abdominal/oblique.
  • The right is great, but slight curve in the spine, and the scapular position is off, with the Right being slightly lower now.

A lot that was said here is good, and I like the advice. Dumbells and asymmetrical training tools are great ( @meastlake1 & @rugby_lifting ) and worth doing if you think you have asymmetries in strength, size, posture, etc. @DrE13 may be right, and there is a structural alignment issue that can be corrected for too. It’s a bad idea to train asymmetry into a system. But as @Lonnie123 observed, the symmetry changes depending on the shot.

I do observe the asymmetrical posture from Left to Right. The back double biceps pose shows it well. So, a majority of what we are seeing may very likely be your body awareness and behaviors around posture and movement. Training can amplify these asymmetries over time, whether from structural alignment or just motor patterns. So it is worth training out of them (mobility, movement awareness, and motor control drills) and getting hands-on help (movement/biomechanically trained PT, Chiro, Coach) if you think it goes deeper. Both will likely prove to enhance performance to a degree and in the long term, will help to avoid repetitive motion issues from asymmetrical movement.

I hope this helps. Great discussion. - Doc

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Really great response, big help! Thanks