NCT06188897

Biomechanical Relationship Between Trunk Flexion and Mouth Opening: Pilot Study

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 60 (actual)
• Sponsor: University Rovira i Virgili · Academic / Other
• Sex: All
• Age: 18 Years – 26 Years
• Healthy volunteers: Accepted

Summary

The aim of the present study is to analyze if there is a biomechanical relationship between trunk flexion and buccal opening and to observe if there is an improvement of trunk flexion by performing the "sit and reach" test when stretching the masticatory muscles.

Detailed description

The study design is made up of a double-blind clinical trial with 60 participants randomly divided into two groups of 30 people each (Treatment group and Control group). Basal measurements of the mouth opening were taken with a vernier caliper and the trunk flexion measurements were taken by means of the "sit and reach" test. These measurements were carried out again after the intervention, which consisted of self-stretching of the masticatory muscles for the Treatment group and an occlusion of the mouth for the Control group. In the results there was an increase in the trunk flexion compared to the initial values in both groups (Treatment group 2.8 (1.51), Control group 1.97 (2.31) and this increase was greater in the Treatment group even though the difference with the Control group was not statistically significant. Therefore, the stretching of the masticatory muscles does not cause an immediate increase in the degree of trunk flexion measured by the "sit and reach" test. As a consequence, we cannot confirm the existence of a biomechanical relationship between trunk flexion and mouth opening.

Conditions

• Hamstring Injury
• Temporomandibular Joint Disorders
• Stretch

Interventions

Type	Name	Description
OTHER	Self-stretching of the masticatory musculature	If the subject belonged to the Treatment group, he was instructed to self-stretch the masticatory muscle. This stretch consisted of introducing three knuckles of the non-dominant hand between the incisors for two minutes while sitting.
OTHER	Control group intervention	The control group was asked to introduce only two knuckles in the oral cavity and perform a mandibular occlusion, an intervention that serves as a simulated stretch in said group.

Timeline

• Start date: 2023-02-01
• Primary completion: 2023-02-02
• Completion: 2023-02-15
• First posted: 2024-01-03
• Last updated: 2024-01-03

Locations

1 site across 1 country: Spain