Posted by Candice on August 20, 2009 at 18:58:48:
In Reply to: Pump Handle/Bucket Handle posted by Nate on August 20, 2009 at 02:09:55:
: If anyone could explain pump handle and bucket handle action in a succinct and accurate way I would appreciate it. Thanks!
: -Nate
Hey Nate,
The pump handle action is for the up/out down/in movement of the rib cage (or, before Dr. Zagon frowns on my lack of anatomical terms, superior/ventral inferior/dorsal movement. If it helps, imagine that the xhyphoid is the tip of the pump handle.
I am less sure about this one, but I believe that the bucket handle action is for the expansion (lateral, I suppose) of the rib cage. Imagine that one side of your rib cage is a bucket handle laying on the side of the bucket (i.e., before you pick ti up). When you pick up the handle, it kind of goes outward; the best way to picture it would be to look at an actual bucket handle and watch the arc as you lift the handle.
Hope this helps!!