Lip closure training improves eating behaviors and prefrontal cortical hemodynamic activity and decreases daytime sleep in elderly persons

Takamoto, Kouich; Saitoh, Tohru; Taguchi, Toru; Nishimaru, Hiroshi; Urakawa, Susumu; Sakai, Shigekazu; Ono, Taketoshi; Nishijo, Hisao

doi:10.1016/j.jbmt.2017.09.002

Cited by 17 publications

(38 citation statements)

References 50 publications

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“…Most patients with dysphagia cannot close their lips completely, leading to food spillage [13]. In studies of stroke patients and old individuals living in an elderly care facility, improvements of masticatory ability and eating behaviors were found following lip muscle strength training [14,15].…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have provided lip training at varying intensities. For example, one study used 70% of the maximal strength as determined by IOPI for patients recovering from a stroke [18] while other studies used a lip closure device with the goal of maintaining lip closure for three minutes in older adults [15]. For our practical method, the training effect, i.e., the weight of the water bottle lifted during training can be checked daily, although this is a relatively rough measurement.…”

Section: Discussionmentioning

confidence: 99%

“…One possible protocol is to hold the water bottle until failure or near failure utilizing a relative high weight (repeated several times). However, it is unclear whether similar effects would be observed with each method following lip muscle strength training in children and adults with and without disease such as stroke [15,18,19].…”

Section: Discussionmentioning

confidence: 99%

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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%

Section: Discussionmentioning

confidence: 99%

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A Practical Method for Assessing Lip Compression Strengthening in Healthy Adults

et al. 2020

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“…The loss of function in the orbicularis oris muscle may result in a detrimental decline to daily functional activities that can originate with a decrease of complete lip closure and function [7,8]. The decline of lip closure can negatively influence various behaviors, not only during the oral phase of swallowing but also when forming facial expression, during speech, while sleeping [9], and in the presence of halitosis [10]. However, lip muscle strength can be improved by lip exercise training [11].…”

Section: Introductionmentioning

confidence: 99%

“…However, lip muscle strength can be improved by lip exercise training [11]. Previous studies have recruited from a variety of populations including healthy adults and diseased patients [7,9,[11][12][13]. It may be necessary to consider participant characteristics in order to better understand the long-term effects of lip exercise.…”

Section: Introductionmentioning

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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Lip‐closing strength in children is enhanced by lip and facial muscle training

Nogami

Saitoh

Inada

et al. 2021

Clinical & Exp Dental Res

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Objectives Weakening of lip‐closing strength (LCS) associated with an incompetent lip seal (ILS) may affect the oral balance between the lip and tongue pressures. The purpose of this study was to evaluate the effects of lip‐closing training in children with lower LCS and/or abnormal habits across different age groups and to compare its effects on increasing LCS in children with malocclusion and/or oral habits. Material and Methods Lip‐closing training was performed by 154 Japanese children aged 3–12 years using a specialized training device at home for 3 months. Children with oral habits and/or exhibiting less than standard LCS were included. LCS was measured using a digital strain force gauge at a dental clinic at the beginning (T0) and after each month (after 3 months: T3). Results Children had higher LCS responses after lip‐closing training. The first month of lip‐closing training was more effective than the subsequent months. With lip‐closing training, the LCS increased from an average of 6.2 N (T0) to 11.4 N (T3) in Group I, 7.9 N (T0) to 12.8 N (T3) in Group II, and 6.8 N to 11.4 N in Group III. Anterior cross bite, including reverse bite, open bite, and tongue thrusting, significantly reduced training effects. Conclusion Our findings showed that lower LCS in children with ILS resulted in greater responses to lip‐closing training in a short period, but oral dysfunction, such as abnormal habits, inhibited the positive effects of training. Our results suggest that less detrimental effects of malocclusion and abnormal oral habits lip‐closing training enhances LCS in younger children.

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Lip closure training improves eating behaviors and prefrontal cortical hemodynamic activity and decreases daytime sleep in elderly persons

Cited by 17 publications

References 50 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

Lip‐closing strength in children is enhanced by lip and facial muscle training

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