In this study, we traced the change of a marsh as a local resource in "Ukiya no sato". We considered the resident’s cognitive process in the continuation of the rural landscape conservation activity undertaken by them. We identified 3 sites which had a marsh for about 70 years—from 1948 to the present day. These marshes had been an inefficient use of land for the local community as they yielded high food produce. This has resulted from the natural condition of over-humidity due to the poor drainage. On the other hand, residents have initiated conservation activities for these marsh landscapes as the spring water from the buried valley helps in the formation of a rare wetland plant community, turning the marsh into a natural monument. These marshes have now been transformed into local attractions. Iris ensata var. ensata and Euphorbia Adenochlora were viewed as a distinctive characteristic of these marshes. In our questionnaire survey, about 75% of the respondents recognized that the marsh landscape has been preserved by their activities for 20 years. Though they have done various trouble and hard work in landscape conservation work, about 87% of the respondents felt satisfied with their efforts. The results of a cross tabulation indicated that communication between the residents and pride in their hometown are the factors that affect participation in landscape conservation work. The residents continued landscape conservation work as they recognized that growing of E. Adenochlora involved traditional marsh management techniques such as open burning.

目的：日本人男性は女性よりも健康寿命が短く，平均寿命との差も大きい．本研究では，自立歩行可能な80歳以上の男性高齢者がどの程度の身体機能を有しているかを調査した．

方法：対象は，2019年6月1日～2021年6月1日の2年間に当院を訪れ，「80歳以上の男性における運動器機能評価」に参加した自立歩行可能な男性120名とし，認知機能と7つの身体機能測定を行った．

結果：測定結果は，全ての項目で同年代と比較し，同等または高値であった．自立した歩行能力を有することで，高い身体機能の維持が可能になることが示唆された．

結論：得られた測定値は，80歳未満の男性や医療従事者に対して，自立歩行能を維持し健康な80歳を迎えるために必要な身体機能の目標値となりえる．