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Relationship between masticatory performance and heart rate variability: a pilot study.
Noriko Takeuchi1, Daisuke Ekuni, Takaaki Tomofuji
1Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Acta Odontologica Scandinavica
|October 20, 2012
Summary
Impaired chewing ability is linked to higher sympathetic nervous system activity, indicated by heart-rate variability (HRV) indices. This suggests poor masticatory performance may increase sympathetic activity.
Area of Science:
- Cardiovascular Physiology
- Oral Health
- Autonomic Nervous System Function
Background:
- Limited research exists on the connection between masticatory performance and heart-rate variability (HRV).
- Understanding this relationship is crucial for identifying potential health risks associated with impaired chewing.
Purpose of the Study:
- To investigate the association between masticatory performance and HRV indices.
- To explore whether impaired masticatory function correlates with autonomic nervous system activity.
Main Methods:
- Sixty-five participants (19 men, 46 women, aged 66.1 ± 9.9 years) underwent assessments.
- Methods included questionnaires, a chewing performance test, occlusal force measurement, and HRV analysis.
Main Results:
- Subjects with high sympathetic activity (LF ≥ 49.6) exhibited significantly lower masticatory performance (a* value).
- Masticatory performance showed significant correlations with LF and LF/HF indices (p < 0.05).
Conclusions:
- A relationship exists between masticatory performance and HRV indices.
- Impaired masticatory performance may be a risk factor for elevated sympathetic activity.
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