Torje - thanks, that's really interesting. What is the best method to
stretch the Piriformis?

> The biceps femoris has an interesting nerve supply. The two heads are
> supplied by different parts of the sciatic nerve. The Long head is supplied
> by the Tibial nerve and the Short head by the Common Peroneal nerve. Have
> you checked the possibility of a Piriformis syndrome as a cause of the
> problem? A fairly common anatomical variation is the penetration of the
> Piriformis by the Common Peroneal part of the Sciatic nerve; if the
> Piriformis is 'tight', it might lead to minor irritation of the Common
> Peroneal nerve and subsequent conductive 'problems' in the Short Head of
> Biceps Femoris.
>
Also, for those interested in looking deeper, I picked the following up
from the Sportscience mailing list:

> From: "Tobias Sundberg" <[log in to unmask]>
> To: <[log in to unmask]>
> Subject: Piriformis and hip musculature
> Date: Thu, 3 Feb 2000 12:48:44 +0100
> MIME-Version: 1.0
> Content-Type: text/plain;
> charset="iso-8859-1"
> Content-Transfer-Encoding: 8bit
>
> Dear listmembers,
>
> Thanks to everyone responding to my question on the functional anatomy of
> the piriformis. Unfortunately some information was lost due to computer
> hard ware failure, but here are most of the references I received related
> to this interesting topic. Enjoy.
>
> Cheers,
>
> Tobias
>
> PS. Anyone having additional resources please post them to the list.
> Thanks.
>
> ----------------------------------
> Tobias Sundberg
> [log in to unmask]
> ----------------------------------
>
>
> Articles:
>
> Delp SL, Hess WE, Hungerford DS, Jones LC. Variation of rotation moment
> arms with hip flexion. J Biomech 1999;32(5):493-501.
>
> Skyrme AD, Cahill DJ, Marsh HP, Ellis H. Psoas major and its controversial
> rotational action. Clin Anat 1999;12(4):264-5.
>
> Reimann R, Sodia F, Klug F. Controversial rotation function of certain
> muscles in the hip joint. Anat Anz 1996;178(4):353-9.
>
> Barton PM. Piriformis syndrome: a rational approach to management. Pain
> 1991;47(3):345-52.
>
> Julsrud ME. Piriformis syndrome. J Am Podiatr Med Assoc 1989;79(3):128-31.
>
> Dostal WF, Andrews JG. A three-dimensional biomechanical model of hip
> musculature. J Biomech 1981;14(11):803-12.
>
> Books:
>
> Travell & Simons: Myofascial Pain & Dysfunction Trigger Point Manual.
>
> Laughlin: Overcome neck & back pain.
>
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