Exercise Capacity in Athletes with Mouthguards

Abstract

The objective of this study was to determine the effect of wearing a mouthguard on maximal exercise capacity and cardiopulmonary parameters at peak workload, and to assess the athletes' attitudes toward wearing a mouthguard. Thirteen volunteer male athletes (18 to 27 years old) were interviewed before and after delivery of a custom-made laminated mouthguard. A visual analogue scale (VAS, 0 - 100 mm) was used for judgment of interference with breathing, speaking, concentration and athletic performance. In addition, the athletes were subjected to a cardiorespiratory examination on a cycle ergometer with and without mouthguards. Subjectively, the athletes rated the mean interference with performance to be 37 mm VAS at the beginning of the study. Mean scores of impairment decreased to 23 mm VAS (p = 0.081) after wearing the mouthguard for four weeks, and further improved to 12 mm VAS (p < 0.001) after the test on the cycle ergometer. Objectively, the maximum workload during spiroergometry was even slightly elevated during exercise with the mouthguard (330.2 W) compared to exercise without the mouthguard (314.5 W). Peak minute ventilation and oxygen uptake were not different during exercise with and without the mouthguard. The present study demonstrated that a custom-made mouthguard does not significantly affect or reduce maximum exercise performance of athletes.

Key words

spiroergometry - exercise capacity - mouthguard - athlete - breathing - performance

References

• 1 Amis T, Di Somma E, Bacha F, Wheatley J. Influence of intra-oral maxillary sports mouthguards on the airflow dynamics of oral breathing.  Med Sci Sports Exerc. 2000;  32 284-290
• 2 Brunner E, Domhof S, Langer (eds) F. Nonparametric Analysis of Longitudinal Data in Factorial Experiments. New York; Wiley 2002
• 3 Chapman P J, Nasser B P. Prevalence of orofacial injuries and use of mouthguards in high school rugby union.  Austr Dent J. 1996;  41 252-255
• 4 Cornwell H, Messer L B, Speed H. Use of mouthguards by basketball players in Victoria, Australia.  Dent Traumatol. 2003;  19 193-203
• 5 Delaney J S, Montgomery D L. Effect of non-custom bimolar mouthguards on peak ventilation in ice hockey players.  Clin J Sport Med. 2005;  15 154-157
• 6 DeYoung A K, Robinson E, Godwin W C. Comparing comfort and wearability: custom-made vs. self adapted mouthguards.  J Am Dent Assoc. 1994;  125 1112-1118
• 7 Eroglu E, Diljin K A, Lütfi B M. Elite taekwondo athletes' satisfaction with custom-made mouthguards.  Dent Traumatol. 2006;  22 193-197
• 8 Flanders R A, Bhat M. The incidence of orofacial injuries in sports: a pilot study in Illinois.  J Am Dent Assoc. 1995;  126 491-496
• 9 Francis K T, Brasher J. Physiological effects of wearing mouthguards.  Br J Sports Med. 1991;  25 227-231
• 10 Kececi A D, Cetin C, Eroglu E, Baydar M L. Do custom-made mouthguards have negative effects on aerobic performance capacity of athletes?.  Dent Traumatol. 2005;  21 276-280
• 11 Kvittem B, Hardie N A, Roettger M, Conry J. Incidence of orofacial injuries in high school sports.  J Public Health Dent. 1998;  58 288-293
• 12 Labella C R, Smith B W, Sigurdsson A. Effect of mouthguards on dental injuries and concussions in college basketball.  Med Sci Sports Exerc. 2002;  34 41-44
• 13 Lieger O, von Arx T. Orofacial/cerebral injuries and the use of mouthguards by professional athletes in Switzerland.  Dent Traumatol. 2006;  22 1-6
• 14 Marshall S W, Loomis D P, Waller A E, Chalmers D J, Bird Y N, Quarrie K L, Feehan M. Evaluation of protective equipment for prevention of injuries in rugby union.  Int J Epidemiol. 2005;  34 119-120
• 15 Morrow R M, Bonci T, Seals R R, Branwell G M. Oral injuries in southwest conference women basketball players.  J Athl Training. 1991;  26 344-347
• 16 Scott J, Burke F J, Watts D C. A review of dental injuries and the use of mouthguards in contact team sports.  Br Dent J. 1994;  176 310-314
• 17 Seals R S, Morrow R M, Kuebker W A, Farney W D. An evaluation of mouthguard programs in Texas high school football.  J Am Dent Assoc. 1985;  110 904-909
• 18 Takeda T, Ishigami K, Hoshina S, Ogawa T, Handa J, Nakajima K, Shimada A, Nakajima T, Regner W. Can mouthguards prevent mandibular bone fractures and concussions? A laboratory study with an artificial skull model.  Dent Traumatol. 2005;  21 134-140
• 19 Tschan J, Roethlisberger B, Hegg L, von Arx T. Frequency and nature of anterior tooth injuries and the use of mouth protectors in sports clubs in Bern (in German).  Schweiz Monatsschr Zahnmed. 2003;  113 20-26
• 20 Wisniewski J F, Guskiewicz K, Trope M, Sigurdsson A. Incidence of cerebral concussions associated with type of mouthguard used in college football.  Dent Traumatol. 2004;  20 143-149
• 21 Woodmansey K F. Athletic mouth guards prevent orofacial injuries.  J Am Coll Health. 1997;  45 179-182
• 22 Yamada T, Sawaki Y, Tomida S, Tohnai I, Ueda M. Oral injury and mouthguard usage by athletes in Japan.  Endod Dent Traumatol. 1998;  14 84-87