Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MANGIONE KK,The effects of high-intensity and low-intensity cycle ergometry in older adults with knee osteoarthritis,J Gerontology : MEDICAL SCIENCE,,,1999,54,,191-199,https://cir.nii.ac.jp/crid/1570291225435027584,