Acute effects of jaw clenching using a customized mouthguard on anaerobic ability and ventilatory flows

Morales, José; Buscà, Bernat; Solana-Tramunt, Mónica; Miró, Adrià

doi:10.1016/j.humov.2015.09.008

Cited by 29 publications

(43 citation statements)

References 24 publications

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“…Moreover, although it has been reported that an increased ability to clench jaw muscles leads to decreasing mandibular stress through the motor area of the brain, thus decreasing the hypothalamic-pituitary response and, thereby, resulting in a reduction in cortisol release, the presence of the stress factor of holding the breath appears to interfere with this mechanism [1,37]. The present study found no significant differences in BL between conditions, in contrast with previous studies that found significantly lower BL accumulations for subjects wearing an intra-oral device and indicated that its use might create an advantage for sports where fatigue and lactate accumulations influence athletic performance [2,5,38]. Furthermore, the aforementioned studies reported performance testing comparisons (between mouthguard and no-mouthguard conditions), and the present study evaluated an entire training session.…”

Section: Discussioncontrasting

confidence: 85%

“…However, 10 minutes post-exercise, the mouthpiece condition displayed baseline levels of cortisol, while without the mouthpiece, cortisol levels were found to increase [1]. Other authors observed that wearing a custom-made mouthpiece reduced blood lactate levels after performing the Wingate anaerobic test [5]. Additionally, in the same study, researchers found similar mean airflow values at maximal intensities when comparing the values of forced expiration with and without a mouthpiece.…”

Section: Introductionmentioning

confidence: 73%

“…Beyond the preventive role of intra-oral devices, recent research has investigated their physiological effects and potential benefits in various parameters such as salivary cortisol (SC), blood lactate (BL) accumulation, and ventilatory function [1][2][3][4][5]. Certain evidence shows that jaw clenching, biting or the use of intra-oral devices affect lactate production and cortisol release in humans [1,2,6].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Wearing a Jaw-repositioning Intra-oral Device in Synchronized Swimming Athletes

et al. 2020

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The effects of wearing an intra-oral device on several ventilatory and fatigue markers have been reported for a variety of sports. The quality of the figures performed in synchronized swimming is directly affected by fatigue, and can be monitored during training sessions (TS). The aim of the study was to investigate the acute effects of wearing customized intra-oral devices on heart rate variability, rating of perceived exertion, blood lactate accumulation, and salivary cortisol production during a competitive training session. Twelve highly trained elite female athletes (age: 21.0±3.6 years) participated in the study. Fatigue markers were assessed at the beginning and at the end of the 3rd and 5th afternoon TS for that week, once with and once without an intra-oral device, in random order. Salivary cortisol levels were higher in relation to the baseline in the intra-oral device condition (P<0.05) but not in athletes without an intra-oral device. No differences between conditions were found in rating of perceived exertion (P=0.465) and blood lactate (P=0.711). No time or condition interactions or main effects were shown for heart rate variability. Thus, there is no evidence that wearing a low-arch intra-oral device is a good recommendation for high-standard athletes performing long and stressful routines.

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Section: Discussioncontrasting

confidence: 85%

Section: Introductionmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

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Effects of Wearing a Jaw-repositioning Intra-oral Device in Synchronized Swimming Athletes

et al. 2020

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“…In addition, the decrease in respiratory rate could affect fatigue and potentially prolong exercise performance, with future studies needed to verify the effect on lowered respiratory rate on performance and recovery parameters. Finally, further studies are need to determine if the decreases in respiratory rate, tongue placement, or F I G U R E 5 Carbon dioxide exhalation between no mouthpiece (no MP) and mouthpiece (MP) conditions averaged across subjects during the 10-min steadystate run jaw position could also explain improved physiological outcomes cited in previous studies such as decrease lactate and/or cortisol (Arent et al, 2010;Dudgeon et al, 2017;Garner, Dudgeon, Scheett, & McDivitt, 2011;Garner & McDivitt, 2015;Morales et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Respiratory outcomes with the use of a lower custom fit genioglossal‐effecting oral appliance

Garner

Lamira

2020

Clinical & Exp Dental Res

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Objective Sleep apnea research cites that an oral appliance, which places the mandible in a more forward position and the genioglossus (tongue muscle) on the floor of the mouth, improves aspects of the pharyngeal opening. Exercise science research has cited improvements in airway dynamics and physiological variables with oral appliance use during exercise. Thus, the purpose of this study was to design an oral appliance that would act on the genioglossus and determine if there were effects on respiratory parameters while exercising. Materials and methods Seventeen healthy subjects ages 18–43 participated in this study. Prior to the exercise protocol, the order of the oral applicance (OA) or no oral appliance (no OA) condition was randomly assigned to subjects, with subjects completing both conditions. Respiratory parameters (respiratory rate, ventilation, oxygen, and carbon dioxide) were measured between conditions while subjects ran for 10 min at steady state. Results The results demonstrated that both respiratory rate (25.97 BPM, OA and 28.35 BPM, no OA) and ventilation (47.66 l/min, OA and 50.34 l/min, No OA) were significantly lowered (p < .01) in the OA condition. There were no differences in carbon dioxide (1.89 l/min, no OA and 1.88 l/min, OA) or oxygen outcomes (2.17 l/min, no OA and 2.17 l/min OA). Discussion The outcomes from this study suggest that the design of the oral appliance elicits an effect on the genioglossus, thereby resulting in lowered respiratory rate and ventilation with no negative effects on oxygen uptake during exercise.

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“…Among approaches to increase of athlete's workability we can mark out application of special ergogenic means, which permits for athlete to freely breathe and do not influence negatively on efficiency [11]. Such approach proves their application's purposefulness for efficiency rising [21,23]. It can also increase athlete's physical endurance [26].…”

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confidence: 99%

Influence of Carbohydrate Gel “Energel. Endurance” on Sportsmen’s Workability

Vdovenko

Maidanuyk

Иванова

et al. 2017

PPS

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Purpose:to study influence of carbohydrate course application on qualified athlete's special workability. Material:workability of cyclic kinds of sports athlete (n=14) was determined before and after gel course application under increasing loads. Results:confident increase of work power was found at threshold of anaerobic metabolism (by 12%). Besides, rising of mechanic effectiveness and economy of muscular work at threshold of anaerobic metabolism and at maximal oxygen consumption was registered. Such results witness about presence of conditions for improvement of muscular energy supply at the account o aerobic component that permits to prolong working time without fatigue. Conclusions:purposefulness of carbohydrate gel application in conditions of physical loads, requiring endurance, has been proved. Its application in athlete's training is recommended for increase of training and competition effectiveness.

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Acute effects of jaw clenching using a customized mouthguard on anaerobic ability and ventilatory flows

Cited by 29 publications

References 24 publications

Effects of Wearing a Jaw-repositioning Intra-oral Device in Synchronized Swimming Athletes

Effects of Wearing a Jaw-repositioning Intra-oral Device in Synchronized Swimming Athletes

Respiratory outcomes with the use of a lower custom fit genioglossal‐effecting oral appliance

Influence of Carbohydrate Gel “Energel. Endurance” on Sportsmen’s Workability

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