The use of color-changeable chewing gum in evaluating food masticability.

Purpose: We assess masticatory performance using color-changeable chewing gum, which shifts from yellow-green to red upon chewing. Previous studies used a colorimeter to reveal the cut-off a* values of the gum's color (a* represents the degree of color between red and green) to determine which foods are masticable (masticable meat, masticable soft side dish, and inadequate masticatory performance). Since a more convenient method is required, we examined the validity and reliability of visual measurement using a color scale to indicate masticable foods by observing the chewing gum's color.

Improvement in activities of daily living and exercise tolerance in a patient with severe COVID-19 and femoral nerve palsy after Kaifukuki rehabilitation: a case report.

Unlabelled: Yashiro T, Wada Y, Sugiyama M, Tateno H, Kasai F, Kawate N. Improvement in activities of daily living and exercise tolerance in a patient with severe COVID-19 and femoral nerve palsy after Kaifukuki rehabilitation: a case report. Jpn J Compr Rehabil Sci 2021; 12: 53-57.