Jaw Clenching on Anaerobic Ability and Ventilatory Flows

August 11, 2020 updated by: Jose Morales, University Ramon Llull

Acute Effects of Jaw Clenching Using a Customized Mouthguard on Anaerobic Ability and Ventilatory Flows

The latest findings on the ergogenic effects of a dentistry-design, bite-aligning mouthpiece require additional research to assess its impact on anaerobic ability and ventilatory parameters. This study was aimed at determining the ergogenic acute effects of wearing a custom-made mouthpiece on oral airflow dynamics, Wingate Test performance parameters.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The objectives of this study are to investigate the acute effects of a customized, bite-aligning mouthpiece on the different parameters assessed during a Wingate Test, as compared to clenching the jaw without a mouthpiece, in a physically-active, male population. The study also investigate the influence of wearing a mouthpiece on non-forced and forced airflow dynamics, as compared to open mouth and a jaw clenching without mouthpiece. Mouthpieces are made using a new scanning method that simplified the fitting process and lowered its cost.

A nonrandomized study was designed to compare the effect of the occlusion condition on the anaerobic power and airflow dynamics. Conditions of wearing or not wearing mouthguard (MOUTHG and NO-MOUTHG, respectively) are randomly distributed in all tests. Each subject participate in three sessions. The first session is used to obtain informed consent assess anthropometric measurements and to scan the subject's mouth structure. In the second session, subjects are familiarized with the test protocols via a learning session that included demonstration of Wingate Test and the airflow dynamics measurements. Subjects also perform the airflow tests and the first Wingate Test trial. In the third session, subjects perform the second Wingate Test trial. Conditions are randomly distributed in all tests. Wingate Test trials were separated by three days and subjects were not allowed to perform intensive training workloads.

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

19 years to 30 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Healthy physical active males

Exclusion Criteria:

  • Acute or chronic injury that caused pain during testing procedures
  • Temporomandibular joint disorders

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Mouthguard
All subjects perform all tests wearing mouthguard.
Device: Mouthguard
Condition of wearing mouthguard
Experimental: No mouthguard
All subjects perform all tests without mouthguard
Device: No mouthguard
Condition without mouthguard

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in performance in Wingate test
Time Frame: 3 trials spaced 48 hours (each trial 30 seconds)
Anaerobic power and capacity are assessed using the Wingate test with and without mouthguard (MOUTHG and NO-MOUTHG, respectively). Subjects complete a 30-sec maximal effort on an ergometer at a resistance equivalent to 7.5% of their body mass. The ergometer is interfaced with a computer loaded with software (Wingate Software Version 1.11, Lode BV) that apply the appropriate load for each subject. As a warm-up procedure, subjects are instructed to begin pedaling for 5 minutes at 100 W and approximately 60 rpm. After a 5 second count down and without altering the mentioned parameters, subjects are asked to begin pedaling as fast as possible while receiving verbal encouragement throughout the test. Peak power (W) and mean power (W) are calculated and recorded in an online data acquisition system.
3 trials spaced 48 hours (each trial 30 seconds)
Changes in performance dynamics airflow measurements.
Time Frame: 3 trials spaced 3 minutes (each trial 30 seconds)
Subjects are asked to breath at resting pace during 30-sec under three different conditions: open mouth without mouthguard, jaw clenching without mouthguard and jaw clenched with mouthguard (OMNM, JCNM and JCM, respectively). Subjects intercalate 30 second forced breathings under the same conditions. Rest time was 3 minutes after both measurements under each condition. Conditions are randomly distributed. Facemask and is connected to a Biopac MP100 system through the wide-range airflow transducer amplifier. Peak air flow is detected and mean air flow during the 30 second interval is calculated for all conditions in L•min-1.
3 trials spaced 3 minutes (each trial 30 seconds)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Ramon Llull

Investigators

  • Study Chair: Xavier Pujades, PHD, Vicedagà Facultat ciències de l'Esport Blanquerna

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2014

Primary Completion (Actual)

July 1, 2015

Study Completion (Actual)

August 1, 2015

Study Registration Dates

First Submitted

August 11, 2015

First Submitted That Met QC Criteria

August 18, 2015

First Posted (Estimate)

August 19, 2015

Study Record Updates

Last Update Posted (Actual)

August 13, 2020

Last Update Submitted That Met QC Criteria

August 11, 2020

Last Verified

August 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • mou01

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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