2022 Fiscal Year Final Research Report
Estimation of Factors Increasing Falls in the Elderly and fall prevention training
| Project/Area Number |
19K19933
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 59010:Rehabilitation science-related
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| Research Institution | Tokuyama College of Technology (2022)
Kyushu Institute of Information Sciences (2019-2021) |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2023-03-31
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| Keywords | 歩行 / 関節間シナジー / 転倒予防 / 加齢 |
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| Outline of Final Research Achievements |
This research project identified factors that contribute to an increase in stumbling with age. In a previous study, it was reported that one of the factors was an increase in the variance of toe height during the middle of the swing phase. We analyzed the joint synergies that reduce the variance of toe height relative to the hip position and found no significant differences between young and elderly subjects. On the other hand, the variance of toe height relative to the floor was significantly greater in the elderly. Thus, the results suggest that the factor responsible for the increase in stumbling with age is not a decline in joint synergies, but rather a decrease in trunk stability.
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| Free Research Field |
バイオメカニクス
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| Academic Significance and Societal Importance of the Research Achievements |
学術的意義については歩行において股関節に対する足先高さのばらつきを抑えることは重要なポイントであることが加齢によっても衰えないことから示唆される。
また社会的意義としては、加齢によってつまずきが増えるので足先高さの制御が衰えていると思われていたが、股関節に対する足先高さのばらつきを抑える制御については加齢によって衰えていないことが明らかになった。したがって、転倒予防トレーニングについては下肢よりも体幹部の安定性を高めるトレーニングを行うことがより効果をもたらす可能性がある。
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