2022 Fiscal Year Final Research Report
Elucidation of exercise conditions and underlying brain mechanisms for enhancing working memory in the older adults
Project/Area Number |
19K20138
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 59040:Nutrition science and health science-related
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Research Institution | Physical Fitness Research Institute, Meiji Yasuda Life Foundation of Health and Welfare |
Principal Investigator |
Hyodo Kazuki 公益財団法人明治安田厚生事業団体力医学研究所, その他部局等, 研究員(移行) (60782563)
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Project Period (FY) |
2019-04-01 – 2023-03-31
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Keywords | 高齢者 / 低強度運動 / 実行機能 / ワーキングメモリ / 作業記憶 / 前頭前野 / 近赤外線分光法 / fNIRS |
Outline of Final Research Achievements |
In this study, we examined the effects of acute and chronic exercise on working memory (WM) performance and its brain mechanisms using functional near-infrared spectroscopy (fNIRS) in the older adults. Although preliminary study (n = 6), we found that an acute bout of moderate intensity cycling exercise enhanced the task-related prefrontal activation and WM performance in the older adults. In addition, three months of aerobic dance exercise did not affect WM performance in the older adults, but task-related prefrontal activation became more efficient. Further examination of the effects of different exercise periods, exercise modes, etc. is required to search for exercise conditions that are more effective for WM in the older adults.
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Free Research Field |
スポーツ神経科学
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Academic Significance and Societal Importance of the Research Achievements |
多くの研究が運動による高齢者の認知機能の維持増進効果を報告しているが、ワーキングメモリ (WM) への効果に関しての報告数が少なく、どのような運動条件が効果的か、またそのメカニズムは明らかではなかった。本研究課題において、3ヶ月間の短時間低強度運動(軽体操)の実践ではWMの課題成績は高まらないが、効率的に前頭前野を動員して課題を遂行できるようになる可能性が示された。本成果から、WMを高める運動条件の確立には至らなかったが、運動が高齢者のWMに与える影響に関する一つの知見となると考えられる。今回の結果を基に、さらなる研究が求められる。
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