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.
Age-associated changes in the maximum displacement of the lower lip (LL) with perturbations. The displacement of the lower lip significantly increased with perturbations only for older adults (P < 0.001 for older; P = 0.058 for young). The increase in the displacement of the lower lip relative to that of the non-perturbed trials was significantly greater (P = 0.017) for older adults (34.7 ± 19%) than young adults (13.4 ± 17%)
