Journal of Korean society of Dental Hygiene (한국치위생학회지)

Korean Society of Dental Hygiene (한국치위생학회)
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Relationship between physical activity and oral frailty among older adults in Korea

한국 노인의 신체활동과 구강노쇠의 관련성

  • In-Ja Kim (Department of Dental Hygiene, Yeoju Institute of Technology) ;
  • Dong-Ae Kim (Department of Dental Hygiene, Yeoju Institute of Technology)
  • 김인자 (여주대학교 치위생과) ;
  • 김동애 (여주대학교 치위생과)
  • Received : 2024.07.29
  • Accepted : 2024.09.09
  • Published : 2024.10.30
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Abstract

Objectives: This study aimed to investigate the effects of physical activity on oral frailty in older Korean adults. Methods: The data from 1,320 individuals aged 65 years and older, derived from the 8th Korean National Health and Nutrition Examination Survey (2019), were subjected to complex sample statistical analysis. Oral frailty was assessed based on the presence of one or more functional impairments according to the following five criteria: difficulty chewing, difficulty speaking, number of natural teeth, brushing frequency, and use of oral hygiene products. Results: Chewing discomfort and difficulty speaking were highest in the 76-80 age group at 44.5% and 18.1%, respectively (p<0.01). The proportion of patients with 20+ natural teeth decreased from 72.2% (65-70) to 45.3% (75-80) (p<0.001). The daily brushing rate was 50.2% in the 65-70 group. Chewing discomfort was reported by 26% of those who walked 4-6 days a week (p<0.01). Moderate-intensity activity was linked to lower chewing discomfort (22.9%) and speaking difficulty (7.4%) compared with higher levels in inactive individuals (30.4%, 14.9%) (p<0.01). Brushing three times daily was observed in 52.9% of walkers and 33.9% of non-walkers (p<0.001). Oral hygiene product use varied significantly according to activity level (p<0.05). Conclusions: Physical activity significantly affects oral frailty, highlighting the need for targeted training and policy development.

Keywords

Acknowledgement

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022R1F1A107489213).

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