Movement Debrief Episode 56 is in the books. 

Here is the set list:

• How does rib external and internal rotation relate to infrasternal angle?
• Why does the infrasternal angle measures present as they do?
• What are the anteroposterior and medial-lateral dimensions of the ribcage in these infrasternal angles?
• What are the thoracoabdominal pelvic cavity mechanics in gait?
• How does a collapsed arch impact movement variability?
• How do we treat a collapsed arch?
• Are custom orthotics a worthy solution?

If you want to watch these live, add me on Facebook or Instagram.They air every Wednesday at 7pm CST.

Enjoy!

https://www.youtube.com/watch?v=QasvtSvKGqs&feature=youtu.be

and the audio version...

 

                

Here were the links I mentioned:

Sign-up for the Human Matrix in Seattle, WA on September 15-16th here

Sign up for the Human Matrix in Kansas City, KS on October 27-28th here

 

Sign-up for the Human Matrix in Portland, OR on November 10-11 here

Mechanics of the respiratory muscles

Action of the diaphragm on the ribcage

Below is the diaphragm picture I mentioned. Notice how from this angle, the diaphragm fibers would pull the ribcage inward.

 

Courtesy of openstax

Here is a bunch of stuff on the infrasternal angle.

Human resting muscle tone (HRMT): narrative introduction and modern concepts.

Paul Coffin, DPM (this is who I use to get orthotics)