Bite-force difference among obese adolescents in central Taiwan
Maximal bite force of the jaw can cause thorough food chewing and result in good digestion. Bite force is related to the health of the masticatory muscles. Muscle force is frequently affected by obesity in adolescence, however, little is known about how obesity influences the maximum bite force and...
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| Format: | Article |
| Language: | English |
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Elsevier
2016-06-01
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| Series: | Journal of the Formosan Medical Association |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0929664615001771 |
| _version_ | 1828388270785953792 |
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| author | Kuo-Ting Sun Shih-Chueh Chen Yu-Fen Li Hsien-Hsiung Chiang Hung-Huey Tsai Chi-Yuan Li Ming-Gene Tu |
| author_facet | Kuo-Ting Sun Shih-Chueh Chen Yu-Fen Li Hsien-Hsiung Chiang Hung-Huey Tsai Chi-Yuan Li Ming-Gene Tu |
| author_sort | Kuo-Ting Sun |
| collection | DOAJ |
| description | Maximal bite force of the jaw can cause thorough food chewing and result in good digestion. Bite force is related to the health of the masticatory muscles. Muscle force is frequently affected by obesity in adolescence, however, little is known about how obesity influences the maximum bite force and the difference between genders.
Methods: Five hundred and seventy-seven adolescent students (292 girls and 285 boys), aged 13–16 years, from central Taiwan were recruited for a cross-sectional study in 2009. The maximum bite force, hand strength, triceps skin-fold fat thickness, serum level of testosterone, and body mass index (BMI) were measured. Dental health was evaluated based on malocclusion and dental caries.
Results: Bite force in girls was highest in the obese group (32.49 ± 19.13 kg, mean ± standard deviation), whereas in boys it was higher in the overweight group (41.89 ± 19.3 kg) than in the obese group (33.21 ± 17.12 kg). The prevalence of obesity was twofold higher in boys (14.39%) than in girls (7.88%). The mean serum level of testosterone increased with BMI in girls (p = 0.0172), whereas it decreased with BMI in boys (p = 0.0014). The relationships of serum testosterone level and bite force with BMI were similar in the two gender groups.
Conclusion: The maximum bite force decreased in obese boys but increased in obese girls, which may be due to the sensitivity to testosterone being modulated by the fat level. |
| first_indexed | 2024-12-10T06:09:58Z |
| format | Article |
| id | doaj.art-6a07083dddf546a7943e67054a5384a6 |
| institution | Directory Open Access Journal |
| issn | 0929-6646 |
| language | English |
| last_indexed | 2024-12-10T06:09:58Z |
| publishDate | 2016-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of the Formosan Medical Association |
| spelling | doaj.art-6a07083dddf546a7943e67054a5384a62022-12-22T01:59:36ZengElsevierJournal of the Formosan Medical Association0929-66462016-06-01115640441010.1016/j.jfma.2015.05.007Bite-force difference among obese adolescents in central TaiwanKuo-Ting Sun0Shih-Chueh Chen1Yu-Fen Li2Hsien-Hsiung Chiang3Hung-Huey Tsai4Chi-Yuan Li5Ming-Gene Tu6Graduate Institute of Clinical Medical Science, China Medical University, Taichung, TaiwanDepartment of Endocrinology, Cheng Ching Hospital, Taichung, TaiwanInstitute of Biostatistics, China Medical University, Taichung, TaiwanDepartment of Pediatric Dentistry, China Medical University Hospital, Taichung, TaiwanDepartment of Oral Hygiene, Taipei Medical University, Taipei, TaiwanGraduate Institute of Clinical Medical Science, China Medical University, Taichung, TaiwanSchool of Dentistry, China Medical University, Taichung, TaiwanMaximal bite force of the jaw can cause thorough food chewing and result in good digestion. Bite force is related to the health of the masticatory muscles. Muscle force is frequently affected by obesity in adolescence, however, little is known about how obesity influences the maximum bite force and the difference between genders. Methods: Five hundred and seventy-seven adolescent students (292 girls and 285 boys), aged 13–16 years, from central Taiwan were recruited for a cross-sectional study in 2009. The maximum bite force, hand strength, triceps skin-fold fat thickness, serum level of testosterone, and body mass index (BMI) were measured. Dental health was evaluated based on malocclusion and dental caries. Results: Bite force in girls was highest in the obese group (32.49 ± 19.13 kg, mean ± standard deviation), whereas in boys it was higher in the overweight group (41.89 ± 19.3 kg) than in the obese group (33.21 ± 17.12 kg). The prevalence of obesity was twofold higher in boys (14.39%) than in girls (7.88%). The mean serum level of testosterone increased with BMI in girls (p = 0.0172), whereas it decreased with BMI in boys (p = 0.0014). The relationships of serum testosterone level and bite force with BMI were similar in the two gender groups. Conclusion: The maximum bite force decreased in obese boys but increased in obese girls, which may be due to the sensitivity to testosterone being modulated by the fat level.http://www.sciencedirect.com/science/article/pii/S0929664615001771adolescencebite forcebody mass indexobesitytestosterone |
| spellingShingle | Kuo-Ting Sun Shih-Chueh Chen Yu-Fen Li Hsien-Hsiung Chiang Hung-Huey Tsai Chi-Yuan Li Ming-Gene Tu Bite-force difference among obese adolescents in central Taiwan Journal of the Formosan Medical Association adolescence bite force body mass index obesity testosterone |
| title | Bite-force difference among obese adolescents in central Taiwan |
| title_full | Bite-force difference among obese adolescents in central Taiwan |
| title_fullStr | Bite-force difference among obese adolescents in central Taiwan |
| title_full_unstemmed | Bite-force difference among obese adolescents in central Taiwan |
| title_short | Bite-force difference among obese adolescents in central Taiwan |
| title_sort | bite force difference among obese adolescents in central taiwan |
| topic | adolescence bite force body mass index obesity testosterone |
| url | http://www.sciencedirect.com/science/article/pii/S0929664615001771 |
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