Skip to main content
. 2021 Jan 17;18(2):753. doi: 10.3390/ijerph18020753

Figure 1.

Figure 1

Deep neck flexor. Subjects were instructed to “gently nod their head as though they were saying ‘yes’”. Contribution from the superficial muscles was monitored using observation and palpation. Then, the subjects were taught to perform a slow and controlled deep neck flexor exercise.