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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport


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ORIGINAL ARTICLE  EPIDEMIOLOGY AND CLINICAL MEDICINE


The Journal of Sports Medicine and Physical Fitness 2017 June;57(6):865-71

DOI: 10.23736/S0022-4707.16.06325-8

Copyright © 2016 EDIZIONI MINERVA MEDICA

lingua: Inglese

The effects of over-the-counter jaw-repositioning mouthguards on aerobic performance

Devon L. GOLEM 1 , Patrick M. DAVITT 2, Shawn M. ARENT 3

1 New Mexico State University, Las Cruces, NM, USA; 2 Mercy College, Dobbs Ferry, NY, USA; 3 Rutgers, The State University of New Jersey, New Brunswick, NJ, USA


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BACKGROUND: Though jaw-repositioning devices have been found to increase size of upper respiratory airways in individuals, the effects of jaw-repositioning mouthguards on respiratory function during exercise have not been fully explored. The purpose of this study is to determine the effects of over-the-counter (OTC) jaw-repositioning mouthguards on respiratory function and aerobic performance in male athletes.
METHODS: College-aged, male athletes (N.=20) participated in this randomized, crossover, controlled study. Each subject completed one testing session per condition: a no mouthguard control (CON), a placebo mouthguard (PLA), an OTC self-adapted jaw-repositioning mouthguard (SA), and an OTC custom-fitted jaw-repositioning mouthguard (CF). Each testing session consisted of respiratory flow dynamic tests at rest. Ventilation and gas exchange were assessed during a graded maximal treadmill test. Peak blood lactate values were obtained from 0-10 min post-exercise.
RESULTS: At rest, the CON had significantly higher peak expiratory flow rate values than the other conditions (P<0.03). Maximum voluntary ventilation values for PLA and SA were significantly lower compared to CON (P<0.02) at rest. No significant differences were observed between conditions for ventilation, oxygen consumption, or carbon dioxide production during any submaximal stage (P=0.81) nor at maximal aerobic capacity (P=0.35). Peak lactate and adjusted peak lactate values were not significantly different between conditions (P=0.30 and P=0.63, respectively).
CONCLUSIONS: The OTC jaw-repositioning mouthguards in this study did not enhance aerobic performance. It is important to acknowledge that negative effects on aerobic performance were not observed, thus providing additional support for encouraging the use of this safety device in sports.


KEY WORDS: Peak expiratory flow rate - Oxygen consumption - Carbon dioxide - Lactates - Dental occlusion

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Publication History

Issue published online: May 10, 2017
Manuscript accepted: July 14, 2016
Manuscript revised: July 6, 2016
Manuscript received: December 2, 2015

Per citare questo articolo

Golem DL, Davitt PM, Arent SM. The effects of over-the-counter jaw-repositioning mouthguards on aerobic performance. J Sports Med Phys Fitness 2017;57:865-71. DOI: 10.23736/S0022-4707.16.06325-8

Corresponding author e-mail

dgolem@nmsu.edu