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Affiliation |
Doctorial Course in Health Sciences Occupational Therapy |
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Date of Birth |
1982 |
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Mail Address |
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KODAMA Ayuto
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Research Interests 【 display / non-display 】
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elderly
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Dementia
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circadian rhythm
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Frailty
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elderly
Graduating School 【 display / non-display 】
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-2016.03
Akita University Faculty of Health Care Graduated
Graduate School 【 display / non-display 】
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2013.04-2016.03
Akita University Graduate School, Division of Medicine Doctor's Degree Program Completed
Campus Career 【 display / non-display 】
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2023.11-Now
Akita University Doctorial Course in Health Sciences Occupational Therapy Lecturer
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2022.04-2023.10
Akita University Doctorial Course in Health Sciences Occupational Therapy Assistant Professor
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2020.10-2022.03
Akita University Advanced Research Center for Geriatric Medicine Specially-appointed Assistant Professor
External Career 【 display / non-display 】
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2022.04
Akita University Doctorial Course in Health Sciences Occupational Therapy Assistant Professor
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2020.10-2022.03
Akita University Advanced Research Center for Geriatric Medicine Specially-appointed Assistant Professor
Research Achievements 【 display / non-display 】
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Senior Theater Projects: Enhancing Physical Health and Reducing Depression in Older Adults.
Ayuto Kodama, Nobuko Watanabe, Hitomi Ozawa, Shinsuke Imamura, Yoko Umetsu, Manabu Sato, Hidetaka Ota
International journal of environmental research and public health 21 ( 10 ) 2024.09
Research paper (journal)
BACKGROUND: The aim of this study was to clarify the effects of a theater training program intervention on the physical and cognitive functions in community-dwelling older people. METHODS: Of the 59 participants, 30 were the control group, and 29 were the intervention group. We assessed physical and mental/cognitive functions and criteria of physical frailty. RESULTS: Statistical analysis showed that the usual walking speed (UWS) (p < 0.01), grip strength (GS) (p < 0.01), and GDS-15 (p < 0.05) improved significantly in the intervention group, whereas the Geriatric Depression Scale short-form (GDS-15) (p < 0.01) worsened significantly in the control group. Cognitive function was not significantly different between the two groups. Physical frailty was unchanged in the control group but significantly improved in the intervention group (p < 0.05), and a significant interaction was found for GDS-15 in ANOVA (F = 5.76, p < 0.05). CONCLUSIONS: The results of this study suggest that a theater intervention for the older adults may be effective in preventing and improving depression and physical frailty in old age.
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Improvement of social frailty is associated with stability of nonparametric characteristics of the rest-activity rhythm and improvement of the usual walking ability in the elderly.
Yu Kume, Ayuto Kodama, Sayaka Arai, Makiko Nagaoka, Akiko Sato, Akira Saito, Hidetaka Ota, Hideaki Ando
Chronobiology international 1 - 9 2024.08
Research paper (journal)
Our study, conducted between April 2022 and January 2024, was aimed at clarifying components of the rest-activity rhythm (RAR) involved in improvement of social frailty state before or after a 3-month multi-component exercise intervention in the elderly. Participants were recruited from the general population in Akita prefecture, Japan. We administered a four-item social frailty screening questionnaire to classify the severity of social frailty in each participant before and after the 3-month intervention. The RAR parameters were measured on an Actiwatch Spectrum Plus device worn by the subjects for 7 continuous days. As the final sample, 65 participants classified into the improved/maintained group (n = 36) or the deteriorated group (n = 29) according to the change in the social frailty classification after the intervention were included in the analysis. The results of a binomial logistic regression analysis showed significantly higher values of interdaily stability (IS) and usual walking speed at the post-test after the intervention. Based on our findings, we propose that stability of the rest-activity rhythm related to synchronization with external stimuli (such as social effect and physical activity) might have clinical impact on improvement of social frailty state in elderly community-dwellers.
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Unmodulated 40 Hz Stimulation as a Therapeutic Strategy for Aging: Improvements in Metabolism, Frailty, and Cognitive Function in Senescence-Accelerated Prone 10 Mice.
Tatsunori Shimizu, Hidetaka Ota, Ayuto Kodama, Yasuhiro Suzuki, Takako Ohnuma, Rieko Suzuki, Kaoru Sugawara, Yasushi Sato, Hiroyuki Kodama
Biomolecules 14 ( 9 ) 2024.08
Research paper (journal)
With aging populations in many countries, including Japan, efforts to mitigate the aging-related decline in physical function have gained importance not only for improving individual quality of life but also for mitigating the effects of this loss of function on society. Impaired glucose tolerance, muscle weakness, and cognitive decline are well-known effects of aging. These interrelated factors can create a vicious cycle because impaired glucose tolerance can accelerate muscle weakness and cognitive decline. Unmodulated 40 Hz (u40Hz) stimulation is imperceptible to the human ear and has been reported to improve cognitive function in humans and mice. However, research on the effects of u40Hz stimulation is still limited. This study aimed to report the effects of u40Hz stimulation on glucose tolerance and muscle strength in senescence-accelerated prone (SAMP)-10 mice, a model of accelerated aging. SAMP-10 mice underwent five weeks of u40Hz stimulation followed by glucose-tolerance tests, cognitive and behavioral assessments, and frailty evaluations. In comparison with the control group, the u40Hz-stimulation group showed mitigation of age-related decline in glucose tolerance, a better frailty index (FI), and notably preserved muscle strength. Microarray analysis of stimulated muscle tissue revealed significant upregulation of β-oxidation genes and genes functioning downstream of peroxisome proliferator-activated receptor gamma, and significant downregulation of clock genes. These findings indicate the beneficial effects of u40Hz stimulation on glucose tolerance, muscle strength, and cognitive function, warranting further research in this area.
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Comparative Analysis of Frailty Risk and Associated Factors: Community-Based vs. Open Recruitment Groups.
Tatsunori Shimizu, Ayuto Kodama, Yu Kume, Masahiro Iwakura, Katsuya Iijima, Hidetaka Ota
International journal of environmental research and public health 21 ( 5 ) 2024.05
Research paper (journal)
BACKGROUND: Frailty leads to vulnerability to stress, impaired daily functioning, and an increased need for care. Frailty is considered reversible, and it is crucial to detect the risk of frailty early and investigate factors that may delay its progression. OBJECTIVES: To identify tests that can explain frailty risk and compare the situation of local residents with and without frailty support. METHODS: Participants were recruited in two ways: through public advertisements in Akita City (open recruitment group) and through invites from frailty supporters in their immediate communities (community-based group). We examined the differences in frailty risk and oral, motor, and social functions between the two groups and identified factors associated with frailty risk in both groups. RESULTS: The community-based group exhibited a lower risk of frailty than the open recruitment group despite having more older members on average. Additionally, the community-based group demonstrated better social functioning than the open-recruitment group. Furthermore, factors such as oral diadochokinesis (ODK), one-leg stand test (OLS), and grip strength (GS) showed significant association with frailty risk. CONCLUSION: The ODK, OLS, and GS were identified as factors explaining frailty risk, and Frailty Supporters may reduce the risk of frailty.
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Effect of a multicomponent programme based on reality orientation therapy on the physical performance and cognitive function of elderly community-dwellers: a quasi-experimental study.
Yu Kume, Makiko Nagaoka, Sachiko Uemura, Akira Saito, Megumi Tsugaruya, Tomoe Fujita, Yoshino Terui, Ayuto Kodama, Akiko Sato, Hidetaka Ota, Hideaki Ando
Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society 23 ( 5 ) 847 - 855 2023.09
Research paper (journal)
BACKGROUND: Effects of a multicomponent exercise programme have an impact on the physical, cognitive, and psychological domains in elderly community-dwellers. However, some individuals aged 65 years or more have not shown positive effects after the intervention as reported in similar research. The objective of this quasi-experimental study was to clarify the effectiveness of a multicomponent programme based on reality orientation therapy (ROT) on the physical performance, cognitive ability, and psychological state in the elderly. METHOD: Participants were recruited from the general public in 20 areas of Akita Prefecture, Japan, and they took part in each exercise programme for 90 min a day, once every 2 weeks, for 3 months, according to the group classification using cluster randomization into 20 cohorts in Akita. Physical, cognitive, and geriatric depression assessments were performed at baseline and after the 3-month intervention in both the ROT-based intervention group and the control group. RESULT: The final samples for analysis consisted of 31 participants in the control group and 30 participants in the intervention group. The results of the statistical analysis comparing the two groups showed that the 5-repetition sit-to-stand test was performed significantly faster (P < 0.05) and that the results of the word list memory (WM) test and the Symbol Digit Substitution Task also had significantly improved (P < 0.05) after the intervention in both groups. The WM score did not show an interactive effect between the group and time factors, but it had a significant main effect on time in both groups (P < 0.05). CONCLUSION: The results of our quasi-experimental study indicated that the multicomponent programme based on the ROT would be as effective as the original multicomponent programme combined with aerobic exercise and cognitive tasks, as highlighted in the WM.
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Kodama Ayuto, Asano Mariko, Okuda Yuji, Ota Hidetaka
Nippon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics ( The Japan Geriatrics Society ) 58 ( 2 ) 266 - 271 2021
<p>The purpose of this study was to clarify the trends in the activity of the initial-phase intensive support teams in Akita Prefecture and to, clarify the factors contributing to the more efficient promotion of future projects. A survey was conducted by questionnaire among 46 initial-phase intensive support team member for dementia. The results indicated that it is mostly maintained cooperation medical center for dementia and community support promoter for dementia. However, the question was insufficient cooperation with family doctor including visit the home. These findings suggest that it is important to disseminate information and improve awareness among the community as well as foster relationships of trust by families.</p>
◆Original paper【 display / non-display 】
◆Other【 display / non-display 】
Grant-in-Aid for Scientific Research 【 display / non-display 】
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Elucidation of the characteristics of circadian rhythms that contribute to the development of social frailty and investigation of novel intervention therapies.
Grant-in-Aid for Early-Career Scientists
Project Year： 2023.04 - 2026.03 Investigator(s): Ayuto Kodama
Other external funds procured 【 display / non-display 】
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Development of a new intervention method using pole walking to prevent and improve mild cognitive impairment.
Development of a new intervention method using pole walking to prevent and improve mild cognitive impairment.
Project Year： 2023.11 - 2024.11 Investigator(s): Ayuto Kodama, Tatsunori Shimizu, Hiromitu Todo, Nanako Sasaki, Hiroyuki Kodama, Hidetaka Ota
Funding organization classification：Other
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Development of a Driving Risk Assessment System for Early Detection of MCI in Older adults Drivers
Offer organization: The General Insurance Association of Japan Development of a Driving Risk Assessment System for Early Detection of MCI in Older adults Drivers
Project Year： 2023.11 - 2024.11 Investigator(s): Ayuto Kodama, Takuji Nakamura, Hidetaka Ota
Funding organization classification：Other
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Development of a low-frequency vibration device that contributes to improving the mental and physical functions of the elderly
Offer organization: Kenzo Suzuki Memorial Foundation for Applied Medical Science Development of a low-frequency vibration device that contributes to improving the mental and physical functions of the elderly
Project Year： 2021.07 - 2022.07 Investigator(s): Hidetaka Ota, Ayuto Kodama
Funding organization classification：Other
Academic Activity 【 display / non-display 】
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2023.04-Now
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2022.11-Now
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2022.04-Now