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Clinical Archives of Communication Disorders > Volume 7(1); 2022 > Article
Clinical Archives of Communication Disorders 2022;7(1): 7-14. doi: https://doi.org/10.21849/cacd.2022.00661
Evaluation of chewing ability in cerebrovascular accident and Parkinson’s disease
Ja Young Kim1, Sang-eok Lee2, Hee-Cheon You3, HyangHee Kim1,4
1Graduate Program in Speech-Language Pathology, Yonsei University, Seoul, Korea
2Department of Rehabilitation Medicine, Pohang Stroke & Spine Hospital, Pohang, Korea
3Department of Industrial and Management Engineering, Pohang University of Science and Technology, Pohang, Korea
4Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea
Correspondence  HyangHee Kim ,Tel: +82-2-2228-3900, Fax: +82-2-2227-7984, Email: h.kim@yonsei.ac.kr
Received: January 26, 2022; Revised: April 28, 2022   Accepted: April 28, 2022.  Published online: April 30, 2022.
Chewing problems are a major and prevalent issue in populations with neurological pathologies including cerebrovascular accident (CVA) and Parkinson’s disease (PD). We measured habitual solid chewing performance in patients with CVA or PD and compared it to that of normal older adults to identify differences in chewing ability between groups.
Measures of habitual solid chewing in 32 patients with CVA, in 35 patients with PD, and in 217 normal older adults were compared. Data on the chewing duration, frequency, and rate were collected using a solid chewing task (SCT). We also analyzed the relationships between dentures, number of teeth, and SCT outcomes.
The chewing duration in the PD group was significantly longer than the normal group (p<0.05). Chewing frequency and rate were not significantly different among the three groups. Results can be explained by rigidity and bradykinesia in orofacial structures in the PD group. No significant differences between the PD and CVA groups may be partly explained by the diverse location and size of the CVA lesion compared to the PD. Dentures and the number of teeth were not significantly correlated with SCT outcomes.
Chewing impairment remains the area of development for research and rehabilitation, and SCT may help to assess oropharyngeal dysphagia and to identify therapeutic interventions.
Keywords: Cerebrovascular accident, Parkinson’s disease, Chewing duration, Chewing frequency, Chewing rate
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