Extension-Flexion Question - Personal Trainer Community - Forum

[ejcoorf]

I am looking at the Resources for the Personal Trainer (2nd Ed.) page 132 fig. 7.17 for Circumduction. Is it possible that extension and flexion have been mislabeled? If flexion is decrease in joint angle and extension is an increase, in the figure what is the joint angle increasing relative to in the extension example given? It appears to be moving anterior in the figure making it flexion.

[ejcoorf]

Answered my own question.