著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) RIKLI RE,"Reliability, validity, and methodological issues in assessing physical activity in older adults",Res Q Exerc Sport,,,2000,71,,S89-S96,https://cir.nii.ac.jp/crid/1570291225657789952,