Assessment of hypoxic lip training for lip incompetence by electromyographic analysis of the orbicularis oris muscle

Yoshizawa, Shin; Ohtsuka, Mai; Kaneko, Tomoo; Iida, Junichiro

doi:10.1016/j.ajodo.2018.02.009

Cited by 8 publications

(12 citation statements)

References 11 publications

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“…We believe that the evaluation of lip muscle function with the water bottle used in this study can also be used as a means of training for lip closure muscle strength. The advantage of this practical method is that the device (a standard recyclable plastic water bottle) is inexpensive which may help make the testing/training of lip closure strength more assessable compared to devices used in previous reports [4,16,17]. At this time, it is unknown what exercise intensity is most effective for improving lip muscular strength.…”

Section: Discussionmentioning

confidence: 99%

A Practical Method for Assessing Lip Compression Strengthening in Healthy Adults

et al. 2020

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There is no practical and accessible assessment method to evaluate lip muscle compression strength. The purpose of this study was to examine the relationship between the standard method (i.e., Iowa Oral Performance Instrument) and a practical method in healthy adults. In order to achieve our research purpose, ninety-eight healthy adults (18–40 years) completed lip compression strength measurements (standard method) and lip grasping performance tests using a standard recyclable plastic water bottle (practical method). In the overall sample, the mean and standard deviation for standard method and practical method was 26.7 (7.0) kPa and 255 (119) g, respectively. For the overall sample (n = 98), there was a positive relationship between the two strength tasks [r = 0.56 (0.41, 0.68)]. When separated by sex, positive correlations were observed for men and women with no differences between the observed correlations [difference of 0.06 (−0.2646, 0.3917)]. This result indicates that those individuals who are strong in the standard task will often be strong in the practical task. Future research is needed to determine how well changes in each test track with each other in response to a lip strength training program.

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Section: Discussionmentioning

confidence: 99%

A Practical Method for Assessing Lip Compression Strengthening in Healthy Adults

et al. 2020

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“…The sealed lip ratio is calculated as the total sealed-lip time divided by the total recorded time [28] or estimated using lip-contact sensor/electrical recording devices [29]. Lip strength training has been used for both men and women to improve lip incompetence [29][30][31]. Young men and women that partook in a 4 week intervention of lip endurance training with traction plates connected to a weight by strings displayed an increase in sealed lip ratio at 2 and 4 weeks after training but did not show differences after training ended (8 weeks) [29].…”

Section: Lip Training Responses In Patients With Lip Incompetencementioning

confidence: 99%

“…The increase of lip strength was observed gradually during the training period from baseline (981.7 g) to 4 weeks (1372.7 g) of training [30]. This type of lip strength training was also evaluated in individuals with and without lip incompetence measured by electromyography activity, and it was suggested that individuals with lip incompetence need greater orbicularis oris muscle activity to keep their lips closed [31].…”

Section: Lip Training Responses In Patients With Lip Incompetencementioning

confidence: 99%

Effects of Age, Sex, Disease, and Exercise Training on Lip Muscle Strength

et al. 2020

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Lip muscle strength has been shown to influence daily functional activities such as facial expression, speech production, and eating. In this review, recent literature regarding lip strength and exercise training responses are summarized, highlighting the influence of sex, age, and disease (e.g., stroke). A search using five electronic databases was conducted. Twelve studies were identified from the search, which included five studies using healthy adults and seven studies using patients with diseases or chronic ailments. Regardless of the population, lip strength training multiple times a day for a relatively short term (<24 weeks) has resulted in improvements of lip muscle strength. This change in lip strength has been observed in both young and old participants. Although changes in strength have been observed in both men and women, we are unaware of any studies that have tested whether there are sex differences in this response. The same directional change can be expected for patients with stroke and patients with lip incompetence, but the magnitude of the training effect seems to be higher in healthy people.

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“…They concluded that the training was effective in increasing both OO muscle strength and its endurance. However, they noted that the interrelation between OO muscular strength and lip sealing ability had not yet been clarified 12 …”

Section: Introductionmentioning

confidence: 99%

Electromyographic evaluation of perioral muscle activities during facial expression and button‐pull exercise

Tada

Ofusa

Shiratori

et al. 2021

J of Oral Rehabilitation

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Background Muscle weakness negatively affects perioral muscles and quality of life. The button‐pull exercise is used to teach lip closure (LC) and to strengthen muscles. However, how the muscles accomplish LC during button‐pull and its training effect on each muscle are unknown. Objectives This study aimed to investigate the LC mechanism and the efficacy of perioral muscle training. Methods Electromyographic (EMG) activities were obtained from perioral muscles along with the lip closing force (LCF) and were normalised to the maximum LC activities. Correlations between muscle activities and LCF were assessed during LCF increment/decrement task. The effectiveness of training methods was evaluated during functional face tasks (FFT). The effects of button‐pull on muscles were evaluated during static loadings with two sized buttons. Results The muscles were active during LC, and the amplitudes changed with the LCF. In FFT, the muscles were simultaneously active and the total activity was highest during the blowing task. In button‐pull, maximum button‐pulling forces (BPFs) were significantly larger with the large button (p = .0001). In the static loading task, muscle activities increased with increasing button load. However, the small button produced significantly greater EMG activity than the large button in most of the load (p < .005). Conclusion LC is accomplished by the cooperation of perioral muscles. In button‐pull, a larger button requires a larger BPF, but a smaller button shows higher muscle activities. Face expression exercises compare favourably with button‐pull. Forceful LC and blowing tasks may be effective and balanced training of the perioral muscles.

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Assessment of hypoxic lip training for lip incompetence by electromyographic analysis of the orbicularis oris muscle

Cited by 8 publications

References 11 publications

A Practical Method for Assessing Lip Compression Strengthening in Healthy Adults

A Practical Method for Assessing Lip Compression Strengthening in Healthy Adults

Effects of Age, Sex, Disease, and Exercise Training on Lip Muscle Strength

Electromyographic evaluation of perioral muscle activities during facial expression and button‐pull exercise

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