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The Influence of Visual
Feedback on the Velocity of
Mandibular Movement
Abstract
The accuracy of limb movement is improved by visual feedback.
Motor control of jaw muscles is less developed than that of limb muscles
during isometric contraction, when the target force level was presented
by means of visual feedback. Though the visual guidance could not
improve the precision of jaw position, but there is still some confusion
regarding the effect of visual feedback on the velocity of mandibular
movement. The aim of the present study is to observe how the visual
feedback influences on the velocity of mandibular movement of healthy
subjects. M&M. Eighteen volunteer subjects (10 males, and 8 females),
ages ranged from 21 to 24 years old jointed the study. They were asked
to perform the open-close jaw motion with visual feedback and without
visual feedback. The open-close velocity was recorded by Myotronics
K-6 photo II mode. Results. Paired t test analysis indicated there existed
no statistical difference between the two groups (P
＞
0.05). Conclusion.
In our study, these data support the concept that visual feedback has
poor influence on the velocity of mandibular movement. (This study
is supported in part by research grant from Lo-Tung PohAi Hospital
Research Grant: 104-E126)
CZ Wu
1,2,3,4*
, YF Chen
3*
, WT Lin
1
, KH Hsieh
1
,
YF Lo
3
, KL Ou
1,4
1
Taipei Medical University College of Oral Medicine School of Dentistry
2
Taipei Medical University Hospital Taipei Medical University Dental Department, Taipei. Taiwan.
3
Lo-Tung Poh-Ai Hospital Dental Department, Lo-Tung, Taiwan
4
Taipei Medical University Research Center for Biomedical Implants and Microsurgery Devices, Taipei, Taiwan
Key words
Visual feedback, mandible, velocity
臺灣口腔醫學工程學會會誌
No.
13
Taiwan Oral