Biomechanical Relationship Between Trunk Flexion and Mouth Opening: Pilot Study

NCT06188897 | Completed

• 1 other identifier: 23/2016
• Study Type: interventional
• Target: 60
• Locations: 1 country
• Sites: 1

Brief 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.

Conditions

Hamstring Injury; Temporomandibular Joint Disorders; Stretch

Outcome Measures

Primary Outcomes (1)

• Trunk flexion

  Trunk flexion in cm, taken by using the "sit and reach" drawer (Eve-que). The measurements were made three consecutive times with an interval of five seconds between them. The result of the arithmetic average of the three measurements was the one that was accounted for in the study. For the measurement of trunk flexion, the subject was placed on the floor with his back against the wall and having the soles of both feet in contact with the drawer.

  1 year

Secondary Outcomes (1)

• Mandibular opening

  1 year

Study Arms (2)

Experimental group

EXPERIMENTAL

The experimental group did the intervention, which consisted of self-stretching of the masticatory muscles. This stretch consisted of introducing three knuckles of the non-dominant hand between the incisors for two minutes while sitting

Other: Self-stretching of the masticatory musculature

Control group

PLACEBO COMPARATOR

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.

Other: Control group intervention

Interventions

Self-stretching of the masticatory musculature OTHER

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.

Experimental group

Control group intervention OTHER

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.

Control group

Eligibility Criteria

• Age: 18 Years - 26 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Being between 18 and 26 years old (both included).
• Having signed the consent form.
• Being able to introduce three knuckles of the non-dominant hand between the incisors.

You may not qualify if:

• Having a musculoskeletal injury in the lower extremity and / or in the jaw.
• Being in the process of receiving physiotherapy treatment and / or having undergone any odontologic or maxillofacial surgery in the last month.
• Having suffered dislocations, painful clicks or being diagnosed with some type of temporomandibular joint (TMJ) dysfunction.
• Having hypermobility in the temporomandibular joint (TMJ) that is, the measurement of the buccal opening being greater than 60 mm.

Sponsors & Collaborators

• University Rovira i Virgili: lead

Study Sites (1)

Laura Menés Fernández

Vilanova i la Geltrú, Barcelona, 08800, Spain

Location

Related Publications (2)

• Espejo-Antunez L, Castro-Valenzuela E, Ribeiro F, Albornoz-Cabello M, Silva A, Rodriguez-Mansilla J. Immediate effects of hamstring stretching alone or combined with ischemic compression of the masseter muscle on hamstrings extensibility, active mouth opening and pain in athletes with temporomandibular dysfunction. J Bodyw Mov Ther. 2016 Jul;20(3):579-87. doi: 10.1016/j.jbmt.2015.12.012. Epub 2016 Jan 7.

  PMID: 27634081 BACKGROUND

• Rodriguez-Blanco C, Cocera-Morata FM, Heredia-Rizo AM, Ricard F, Almazan-Campos G, Oliva-Pascual-Vaca A. Immediate Effects of Combining Local Techniques in the Craniomandibular Area and Hamstring Muscle Stretching in Subjects with Temporomandibular Disorders: A Randomized Controlled Study. J Altern Complement Med. 2015 Aug;21(8):451-9. doi: 10.1089/acm.2014.0332. Epub 2015 Jun 2.

  PMID: 26218883 BACKGROUND

MeSH Terms

Conditions

Temporomandibular Joint Disorders

Condition Hierarchy (Ancestors)

Craniomandibular Disorders; Mandibular Diseases; Jaw Diseases; Musculoskeletal Diseases; Joint Diseases; Muscular Diseases; Stomatognathic Diseases

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: December 18, 2023
• First Posted: January 3, 2024
• Study Start: February 1, 2023
• Primary Completion: February 2, 2023
• Study Completion: February 15, 2023
• Last Updated: January 3, 2024

Record last verified: 2023-12

Data Sharing

• IPD Sharing: Will not share

Locations

ES (1)