Clinical trial NCT02529020: Jaw Clenching on Anaerobic Ability and Ventilatory Flows
Official title: Acute Effects of Jaw Clenching Using a Customized Mouthguard on Anaerobic Ability and Ventilatory Flows
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Mouth Breathing
Keywords: mouthguard
ventilation
anaerobic power
ergogenic effects
Lead sponsor: University Ramon Llull
Sponsor class: OTHER
First posted: 2015-08-19
Enrollment: 30
Sex: MALE
Minimum age (years): 19
Maximum age (years): 30
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: NON_RANDOMIZED
Intervention model: SINGLE_GROUP
Primary purpose: BASIC_SCIENCE

Brief summary: 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.

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.

Eligibility criteria: Inclusion Criteria:

* Healthy physical active males

Exclusion Criteria:

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

Primary outcomes:
measure: Changes in performance in Wingate test
timeFrame: 3 trials spaced 48 hours (each trial 30 seconds)
measure: Changes in performance dynamics airflow measurements.
timeFrame: 3 trials spaced 3 minutes (each trial 30 seconds)
Secondary outcomes:
Other outcomes:
Locations:
Study officials:
affiliation: Vicedagà Facultat ciències de l'Esport Blanquerna
name: Xavier Pujades, PHD
role: STUDY_CHAIR
References:
citation: Arent, S. M., McKenna, J.and Golem, D. L. (2010). Effects of a neuromuscular dentistry-designed mouthguard on muscular endurance and anaerobic power. Comparative Exercise Physiology, 7(02), 73-79.
citation: Bailey SP, Willauer TJ, Balilionis G, Wilson LE, Salley JT, Bailey EK, Strickland TL. Effects of an over-the-counter vented mouthguard on cardiorespiratory responses to exercise and physical agility. J Strength Cond Res. 2015 Mar;29(3):678-84. doi: 10.1519/JSC.0000000000000668.
citation: Cetin C, Kececi AD, Erdogan A, Baydar ML. Influence of custom-made mouth guards on strength, speed and anaerobic performance of taekwondo athletes. Dent Traumatol. 2009 Jun;25(3):272-6. doi: 10.1111/j.1600-9657.2009.00780.x.