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INFLUENCES OF ADDITIONAL GUM CHEWING ON POSTPRANDIAL GASTRIC MOTILITY
Author(s) -
KOMINE YUKO MITO,
HATTORI YOSHINORI
Publication year - 2011
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.2011.00285.x
Subject(s) - mastication , gastric emptying , postprandial , masticatory force , chewing gum , motility , stomach , medicine , gastroenterology , biology , dentistry , food science , genetics , insulin
Insufficient trituration of food may increase the functional burden on the stomach and delay gastric emptying. However, previous studies have suggested that gastric emptying is not affected by the particle‐size distribution of the swallowed food if masticatory activity is retained. This finding may be related to the prokinetic effect of mastication on gastric motility via the cephalic‐vagal reflex, and increased gastric motility in turn may hasten gastric emptying. Using cutaneous electrogastrography (EGG), we investigated whether nonfeeding gum chewing, termed additional gum chewing (AGC) here, before a meal that is deliberately chewed inadequately increases postprandial gastric motility. Our EGG results showed that the acceleration effect of AGC was rapid and significant, although it lasted less than 30 min. The cumulative gastric motility after AGC was nearly comparable with that after eating with sufficient mastication. Thus, AGC and similar techniques may help improve gastric motility in subjects with reduced masticatory activity. PRACTICAL APPLICATIONS Gastric emptying is not affected by the particle‐size distribution of the swallowed food if masticatory activity is retained. Thus, individuals with impaired masticatory efficiency should chew food thoroughly. However, lack of motivation, the habit of eating fast and a soft diet have often been reported to deter individuals from changing their chewing behavior and increasing the number of chewing cycles. The current study revealed that postprandial gastric motility after additional gum chewing (AGC) was almost comparable with that after eating with sufficient mastication, suggesting the practical usefulness of AGC as an alternative to facilitate gastric motility in subjects with reduced masticatory activity.