{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T19:10:10Z","timestamp":1792869010085,"version":"4.5.0"},"reference-count":27,"publisher":"Elsevier BV","issue":"6","license":[{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2023,12,1]],"date-time":"2023-12-01T00:00:00Z","timestamp":1701388800000},"content-version":"vor","delay-in-days":913,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["The Journal of nutrition, health and aging"],"published-print":{"date-parts":[[2021,6]]},"DOI":"10.1007\/s12603-021-1634-2","type":"journal-article","created":{"date-parts":[[2021,4,26]],"date-time":"2021-04-26T12:31:08Z","timestamp":1619440268000},"page":"751-756","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":144,"title":["The Influence of the COVID-19 Pandemic on Physical Activity and New Incidence of Frailty among Initially Non-Frail Older Adults in Japan: A Follow-Up Online Survey"],"prefix":"10.1016","volume":"25","author":[{"given":"Minoru","family":"Yamada","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y.","family":"Kimura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.","family":"Ishiyama","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y.","family":"Otobe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Suzuki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.","family":"Koyama","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T.","family":"Kikuchi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.","family":"Kusumi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.","family":"Arai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1007\/s12603-021-1634-2_bib1","doi-asserted-by":"crossref","first-page":"948","DOI":"10.1007\/s12603-020-1501-6","article-title":"Effect of the COVID-19 Epidemic on Physical Activity in Community-Dwelling Older Adults in Japan: A Cross-Sectional Online Survey","volume":"24","author":"Yamada","year":"2020","journal-title":"J Nutr Health Aging"},{"issue":"9","key":"10.1007\/s12603-021-1634-2_bib2","doi-asserted-by":"crossref","first-page":"767","DOI":"10.7326\/M20-2665","article-title":"Worldwide Effect of COVID-19 on Physical Activity: A Descriptive Study","volume":"173","author":"Tison","year":"2020","journal-title":"Ann Intern Med"},{"issue":"6","key":"10.1007\/s12603-021-1634-2_bib3","doi-asserted-by":"crossref","first-page":"1583","DOI":"10.3390\/nu12061583","article-title":"Effects of COVID-19 Home Confinement on Eating Behaviour and Physical Activity: Results of the ECLB-COVID19 International Online Survey","volume":"12","author":"Ammar","year":"2020","journal-title":"Nutrients"},{"key":"10.1007\/s12603-021-1634-2_bib4","doi-asserted-by":"crossref","unstructured":"Browne RAV, Mac\u00eado GAD, Cabral LLP, et al. Initial impact of the COVID-19 pandemic on physical activity and sedentary behavior in hypertensive older adults: An accelerometer-based analysis. Exp Gerontol 2020 Epub.","DOI":"10.1016\/j.exger.2020.111121"},{"issue":"1","key":"10.1007\/s12603-021-1634-2_bib5","first-page":"164","article-title":"Physical activity during COVID-19 lockdown in older adults","volume":"61","author":"Schlichtiger","year":"2021","journal-title":"J Sports Med Phys Fitness"},{"key":"10.1007\/s12603-021-1634-2_bib6","doi-asserted-by":"crossref","unstructured":"Wedig IJ, Duelge TA, Elmer SJ. et al. Stay physically active during COVID-19 with exercise as medicine. Br J Sports Med 2020 Epub ahead of print.","DOI":"10.1136\/bjsports-2020-103282"},{"key":"10.1007\/s12603-021-1634-2_bib7","doi-asserted-by":"crossref","unstructured":"Faghy MA, Arena R, Stoner L, et al. The need for exercise sciences and an integrated response to COVID-19: A position statement from the international HL-PIVOT network. Prog Cardiovasc Dis 2021 Epub ahead of print.","DOI":"10.1016\/j.pcad.2021.01.004"},{"issue":"6","key":"10.1007\/s12603-021-1634-2_bib8","doi-asserted-by":"crossref","first-page":"547","DOI":"10.1111\/ggi.13939","article-title":"COVID-19 and older people in Asia: Asian Working Group for Sarcopenia calls to actions","volume":"20","author":"Lim","year":"2020","journal-title":"Geriatr Gerontol Int"},{"issue":"9","key":"10.1007\/s12603-021-1634-2_bib9","doi-asserted-by":"crossref","first-page":"1036","DOI":"10.1007\/s12603-020-1516-z","article-title":"Letter to the Editor: Recovery of Physical Activity among Older Japanese Adults since the First Wave of the COVID-19 Pandemic","volume":"24","author":"Yamada","year":"2020","journal-title":"J Nutr Health Aging"},{"issue":"3","key":"10.1007\/s12603-021-1634-2_bib10","doi-asserted-by":"crossref","first-page":"323","DOI":"10.1007\/s10433-017-0414-7","article-title":"Social frailty in older adults: a scoping review","volume":"14","author":"Bunt","year":"2017","journal-title":"Eur J Ageing"},{"issue":"5","key":"10.1007\/s12603-021-1634-2_bib11","doi-asserted-by":"crossref","first-page":"356","DOI":"10.1016\/j.jamda.2009.11.008","article-title":"Determinants of frailty","volume":"11","author":"Gobbens","year":"2010","journal-title":"J Am Med Dir Assoc"},{"issue":"7","key":"10.1007\/s12603-021-1634-2_bib12","doi-asserted-by":"crossref","first-page":"637.e13","DOI":"10.1016\/j.jamda.2017.04.015","article-title":"Social Frailty and Functional Disability: Findings From the Singapore Longitudinal Ageing Studies","volume":"18","author":"Teo","year":"2017","journal-title":"J Am Med Dir Assoc"},{"issue":"11","key":"10.1007\/s12603-021-1634-2_bib13","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1016\/j.jamda.2015.08.023","article-title":"Social Frailty in Community-Dwelling Older Adults as a Risk Factor for Disability","volume":"16","author":"Makizako","year":"2015","journal-title":"J Am Med Dir Assoc"},{"issue":"12","key":"10.1007\/s12603-021-1634-2_bib14","doi-asserted-by":"crossref","first-page":"1099","DOI":"10.1016\/j.jamda.2018.09.013","article-title":"Social Frailty Predicts Incident Disability and Mortality Among Community-Dwelling Japanese Older Adults","volume":"19","author":"Yamada","year":"2018","journal-title":"J Am Med Dir Assoc"},{"issue":"1","key":"10.1007\/s12603-021-1634-2_bib15","doi-asserted-by":"crossref","first-page":"46","DOI":"10.1093\/ageing\/afs047","article-title":"Prevalence of frailty phenotypes and risk of mortality in a community-dwelling elderly cohort","volume":"42","author":"Garre-Olmo","year":"2013","journal-title":"Age Ageing"},{"issue":"4","key":"10.1007\/s12603-021-1634-2_bib16","doi-asserted-by":"crossref","first-page":"319","DOI":"10.1016\/j.jalz.2009.11.001","article-title":"Social vulnerability predicts cognitive decline in a prospective cohort of older Canadians","volume":"6","author":"Andrew","year":"2010","journal-title":"Alzheimers Dement"},{"issue":"6","key":"10.1007\/s12603-021-1634-2_bib17","doi-asserted-by":"crossref","first-page":"709","DOI":"10.1111\/ggi.12543","article-title":"Validity of the Kihon Checklist for assessing frailty status","volume":"16","author":"Satake","year":"2016","journal-title":"Geriatr Gerontol Int"},{"key":"10.1007\/s12603-021-1634-2_bib19","doi-asserted-by":"crossref","first-page":"518","DOI":"10.1111\/ggi.12397","article-title":"English translation of the Kihon Checklist","volume":"15","author":"Arai","year":"2015","journal-title":"Geriatr Gerontol Int"},{"issue":"2","key":"10.1007\/s12603-021-1634-2_bib20","doi-asserted-by":"crossref","first-page":"362","DOI":"10.1038\/oby.2009.190","article-title":"BMI and all-cause mortality among Japanese older adults: findings from the Japan collaborative cohort study","volume":"18","author":"Tamakoshi","year":"2010","journal-title":"Obesity (Silver Spring)"},{"key":"10.1007\/s12603-021-1634-2_bib21","doi-asserted-by":"crossref","unstructured":"Hsu HF, Chen KM, Belcastro F, et al. Polypharmacy and pattern of medication use in community-dwelling older adults: A systematic review. J Clin Nurs. 2020 Epub ahead of print.","DOI":"10.1111\/jocn.15595"},{"issue":"3","key":"10.1007\/s12603-021-1634-2_bib22","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1093\/heapro\/dan017","article-title":"Developing a measure of communicative and critical health literacy: a pilot study of Japanese office workers","volume":"23","author":"Ishikawa","year":"2008","journal-title":"Health Promot Int"},{"issue":"8","key":"10.1007\/s12603-021-1634-2_bib23","doi-asserted-by":"crossref","first-page":"e198398","DOI":"10.1001\/jamanetworkopen.2019.8398","article-title":"Global Incidence of Frailty and Prefrailty Among Community-Dwelling Older Adults: A Systematic Review and Meta-analysis","volume":"2","author":"Ofori-Asenso","year":"2019","journal-title":"JAMA Netw Open"},{"issue":"3","key":"10.1007\/s12603-021-1634-2_bib24","doi-asserted-by":"crossref","first-page":"M146","DOI":"10.1093\/gerona\/56.3.M146","article-title":"Frailty in older adults: evidence for a phenotype","volume":"56","author":"Fried","year":"2001","journal-title":"J Gerontol A Biol Sci Med Sci"},{"issue":"6","key":"10.1007\/s12603-021-1634-2_bib25","doi-asserted-by":"crossref","first-page":"552.e1","DOI":"10.1016\/j.jamda.2017.03.013","article-title":"Validity of Total Kihon Checklist Score for Predicting the Incidence of 3-Year Dependency and Mortality in a Community-Dwelling Older Population","volume":"18","author":"Satake","year":"2017","journal-title":"J Am Med Dir Assoc"},{"issue":"12","key":"10.1007\/s12603-021-1634-2_bib26","doi-asserted-by":"crossref","first-page":"2629","DOI":"10.1111\/ggi.13129","article-title":"Prevalence of frailty among community-dwellers and outpatients in Japan as defined by the Japanese version of the Cardiovascular Health Study criteria","volume":"17","author":"Satake","year":"2017","journal-title":"Geriatr Gerontol Int"},{"issue":"1","key":"10.1007\/s12603-021-1634-2_bib27","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1123\/japa.16.1.3","article-title":"Sex, age, season, and habitual physical activity of older Japanese: the Nakanojo study","volume":"16","author":"Yasunaga","year":"2008","journal-title":"J Aging Phys Act"},{"issue":"8","key":"10.1007\/s12603-021-1634-2_bib18","doi-asserted-by":"crossref","first-page":"1381","DOI":"10.1249\/01.MSS.0000078924.61453.FB","article-title":"International physical activity questionnaire: 12-country reliability and validity","volume":"35","author":"Craig","year":"2003","journal-title":"Med Sci Sports Exerc"}],"container-title":["The Journal of nutrition, health and aging"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s12603-021-1634-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s12603-021-1634-2\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1279770723006632?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1279770723006632?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s12603-021-1634-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,22]],"date-time":"2025-10-22T12:47:09Z","timestamp":1761137229000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1279770723006632"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,6]]},"references-count":27,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2021,6]]}},"alternative-id":["S1279770723006632"],"URL":"https:\/\/doi.org\/10.1007\/s12603-021-1634-2","relation":{},"ISSN":["1279-7707"],"issn-type":[{"value":"1279-7707","type":"print"}],"subject":[],"published":{"date-parts":[[2021,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"The Influence of the COVID-19 Pandemic on Physical Activity and New Incidence of Frailty among Initially Non-Frail Older Adults in Japan: A Follow-Up Online Survey","name":"articletitle","label":"Article Title"},{"value":"The Journal of nutrition, health and aging","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1007\/s12603-021-1634-2","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2021 SERDI Publisher.","name":"copyright","label":"Copyright"}]}}