Muscle Activation, Transverse abdominis + back

[lolwut09]

Hi guys,
I have a problem at the moment that involves the Transverse abdominis and the Erector spinae's.

I've done deadlifts and squats in the past and gradually noticed that i only get abdominal pressure in the left side of my torso when i contract my core and that the right side of my torso feels more relaxed, has a weaker contraction and is harder to feel any kind of pressure in.
Ive also noticed that my right Erector spinae's seem to have a weaker contraction too so im not sure if thats related to this or not.

Would i be right in assuming that its possible for the Transverse abdominis to be recruited harder on one side than the other for whatever reason, bad posture ect and that this could be correctable through exercises to develop the weaker side so that i could get an even contraction through my core and an even amount of internal pressure?

Any help or info would be much appreciated.
Thanks

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[pudding_bowl]

Hey buddy,

Do you have a back problem that you are trying to work on, or are you just trying to strengthen your core?
Also how do you know your firing your TrA - are you using a real time ultrasound to view it?
DMA pilates believe that you can acitvely work one side more than the other by biasing the exercises and I have certainly tried in the past.
More recently Stuart McGill and Susan Mercer (as well as others) have been asking physio's why we still even teach core exercises. So there is definately debate as to their validity. Some people love them, and others feel the research isn't there to back it up...

My thoughts on strengthening your core... only do it if you have a problem that needs working on.
It's very hard to selectively fire the TrA and multifidus and most people who think they can do it are mistaken.

Hopefully I haven't sparked a major debate... But some more info in regards to your pains and so forth perhaps I can offer advice... I've done DMA pilates and although I'm using it less and less I could advise you on the exercises and how to bias them to try to recruit one side more.

Have a good day
Pudding