Chewing in @entity2956 XXXX : an exploratory study of an association with some psychological variables.

@entity1 @entity308 @entity2956 @entity20683 @entity148 @entity158
AIMS: To compare kinematic parameters (ie, amplitude, velocity, cycle frequency) of chewing and @entity158 characteristics in a group of female myofascial @entity2956 ( @entity2956 ) @entity1 with an age-matched control female group, and to study correlations between psychological variables and kinematic variables of chewing. METHODS: Twenty-nine female @entity1 were recruited. All @entity1 were categorized according to the Research Diagnostic Criteria for @entity2956 ( @entity20683 / @entity2956 ) into control (n = 14, mean age 28.9 years, SD 5.0 years) or @entity2956 (n = 15, mean age 31.3 years, SD 10.7) groups. Jaw movements were recorded during free gum chewing and chewing standardized for timing. @entity1 completed the @entity308 , @entity148 , and Stress Scales (DASS-42), the @entity158 Catastrophizing Scale (PCS), the Fear of @entity158 Questionnaire-III (FPQ-III), and the @entity158 Self-Efficacy Questionnaire (PSEQ). Statistical analyses involved evaluation for group differences, and correlations between kinematic variables and psychological questionnaire scores (eg, @entity308 , @entity148 , stress) and @entity158 intensity ratings. RESULTS: Velocity and amplitude of standardized (but not free) chewing were significantly greater (P < .05) in the @entity2956 group than the control group. There were significant (P < .05) positive correlations between @entity158 intensity ratings and velocity and amplitude of standardized chewing but not free chewing. There were significant (P < .05) positive correlations between @entity308 and jaw amplitude and stress and jaw velocity for standardized but not free chewing. CONCLUSION: This exploratory study has provided data suggesting that psychological factors, manifesting in @entity308 and stress, play a role in influencing the association between @entity158 and motor activity.
