I have approached DR Hodges and Caroline Richardson (who lectured me at UQ)
and they did do a correlation study while conducting their transversus
trainning, and he did find that people with active psoas muscles could not
activate their transversus muscles. However, he did not want to publish
these results simply (according to Paul anyway) 1. he had enough information
on transversus as it is 2. trigger points is not an acceptable theory and is
definitely not something they want to teach undergraduate students at
University of Queensland. But Aileen Jefferis has commented on this fact
also. As with the exact mechanism... I guess that is another topic for
further research.
Interesting thing... TA is activated during sit up and coughing, but I guess
you also activate other muscles as well. What what Dr Richardson says is
that the aim is to control TA contraction at the correct time hence avoiding
back pain.. and not neccessarily strengthening it.
Henry***
>From: Garry T Allison <[log in to unmask]>
>Reply-To: [log in to unmask]
>To: [log in to unmask]
>Subject: Re: Muscle (transversus) strengthening
>Date: Sat, 14 Oct 2000 09:42:35 +0800
>
>I've noticed a few questions in regard to muscle strengthening of the
>Transversus Abdominis.
>
>It is quiet clear that proponents of the importance of the
>Transversus abdominis in association with LBP is not about
>strengthening the muscle. It is about motor control or more
>generically one should consider the TrAb "performance".
>
>The concept is about altering the drive mechanisms of the muscle over
>and above the global strategy of co-activation patterning with other
>trunk muscles i.e external oblique & rectus abd.
>
>Therefore if one wants to describe their primary research construct
>as 'strengthen transversus' there is a fundamental error in
>interpreting the literature - as it stands today. Taking this
>position will provide the opportunity for many skeptics / general
>resistance training experts to point out the errors of the way. IMHO
>with current research and using the concept of "strength /
>resistance training" this is a very difficult position to defend in
>advocating TrAb strengthening exercises for LBP.
>
>By the way..doing a sit-up activates TrAb , as does coughing, jumping
>and increasing IAP. In comparison the (isolation) exercises are at
>relatively low intensities about 25-30% of a cough and of much longer
>duration. Chaulk & cheese.
>
>regards
>GTA.
>
>
>
>
>--
>________________________________________________
>Garry T Allison (A/Professor of Physiotherapy)
>The Centre for Musculoskeletal Studies http://www.cms.uwa.edu.au/
>Department of Surgery, The University of Western Australia.
>Level 2 Medical Research Foundation Building
>Rear 50 Murray Street
>Perth Western Australia 6000.
>email <[log in to unmask]>
>ph: (618) 9224 0219
>Fax (618) 9224 0204
>
>
>
>
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