I think I might be engaging my scalenes when my diaphragmatic breath runs out of space. Especially when sitting down during which the belly can be compressed. So I did some searching. There are some nice articles below. Not sure if they have been posted in this forum before, but nothing wrong with a review!

The Respiration Connection
http://saveyourself.ca/articles/resp...connection.php

In this next one, I cracked up when I came upon the diagram that said "the anatomical Bermuda Triangle". Any TOS person has to love it!

Singing, Breath and Scalenes
http://saveyourself.ca/articles/sing-breath-scals.php

Massage Therapy for Neck Pain, Chest Pain, Arm Pain and Upper Back Pain
http://saveyourself.ca/articles/perf...4-scalenes.php

Enjoy.