Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Principle of the Kinovea-derived method. Maximal contractions. Each blue line indicates distance measurements corresponding to the selected muscles during maximal contractions: (a) frontalis; (b) corrugator; (c) orbicularis oculi; (d) zygomaticus; (e) orbicularis oris; (f) buccinator. Note in (e) and (f) that in the subject selected the two cheek markers 4 cm out from the oral commissure fail to capture the maximum lateral cheek in/excursions.
