{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T23:10:27Z","timestamp":1790637027632,"version":"4.1.0"},"reference-count":36,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2014,2,27]],"date-time":"2014-02-27T00:00:00Z","timestamp":1393459200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"university grant from Chung Shan Medical University","award":["CSMU-INT-101-08"],"award-info":[{"award-number":["CSMU-INT-101-08"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Geriatrics Gerontology Int"],"published-print":{"date-parts":[[2015,2]]},"abstract":"\n Aim<\/jats:title>\n \n The present study investigated whether dual\u2010task\n T<\/jats:styled-content>\n imed\n U<\/jats:styled-content>\n p &\n G<\/jats:styled-content>\n o tests (\n TUG<\/jats:styled-content>\n ) could identify prefrail individuals more sensitively than the single\u2010task\n TUG<\/jats:styled-content>\n (\n TUG<\/jats:styled-content>\n single<\/jats:sub>\n ) in community\u2010dwelling middle\u2010aged and older adults.\n <\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n \n This cross\u2010sectional study recruited adults aged 50\u2009years and older who actively participated in local community programs. Time taken to complete single\u2010task\n TUG<\/jats:styled-content>\n and dual\u2010task\n TUG<\/jats:styled-content>\n , carrying a cup of water (\n TUG<\/jats:styled-content>\n manual<\/jats:sub>\n ) or carrying out serial\u20103 subtraction (\n TUG<\/jats:styled-content>\n cognitive<\/jats:sub>\n ) while executing\n TUG<\/jats:styled-content>\n , was measured. Prefrailty status was defined based on\n F<\/jats:styled-content>\n ried's phenotypic definition.\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n Of the 65 participants (mean age 71.5\u2009\u00b1\u20098.1\u2009years), 33.3% of the 12 middle\u2010aged (50\u201364\u2009years) and 62.3% of the 53 older (\u226565\u2009years) adults were prefrail, mainly as a result of weak grip strength. The receiver operating characteristic curve analyses for differentiating prefrailty from non\u2010frailty showed that the area under the curve (\n AUC<\/jats:styled-content>\n ) for\n TUG<\/jats:styled-content>\n manual<\/jats:sub>\n (0.73, 95%\n CI<\/jats:styled-content>\n 0.60\u20130.86) was better than that for\n TUG<\/jats:styled-content>\n single<\/jats:sub>\n (0.67, 95%\n CI<\/jats:styled-content>\n 0.54\u20130.80), whereas the\n AUC<\/jats:styled-content>\n value was not significant for\n TUG<\/jats:styled-content>\n cognitive<\/jats:sub>\n (0.60, 95%\n CI<\/jats:styled-content>\n 0.46\u20130.74). The optimal cut\u2010off points for detecting prefrailty using\n TUG<\/jats:styled-content>\n single<\/jats:sub>\n ,\n TUG<\/jats:styled-content>\n manual<\/jats:sub>\n and\n TUG<\/jats:styled-content>\n cognitive<\/jats:sub>\n were 7.7\u2009s (sensitivity 68%), 8.2\u2009s (sensitivity 83%), and 14.3\u2009s (sensitivity 29%), respectively. After adjusting for age, logistic regression analyses showed that individuals with\n TUG<\/jats:styled-content>\n manual<\/jats:sub>\n 8.2\u2009s or slower were 7.2\u2010fold more likely to have prefrailty than those with\n TUG<\/jats:styled-content>\n manual<\/jats:sub>\n faster than 8.2\u2009s.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n \n TUG<\/jats:styled-content>\n manual<\/jats:sub>\n is more valid and sensitive than\n TUG<\/jats:styled-content>\n single<\/jats:sub>\n in identifying prefrail individuals. The\n TUG<\/jats:styled-content>\n manual<\/jats:sub>\n thus could serve as a screening tool for early detection of individuals with prefrailty in community\u2010dwelling middle\u2010aged and older adults.\n Geriatr Gerontol Int 2015; 15: 204\u2013210.<\/jats:bold>\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1111\/ggi.12258","type":"journal-article","created":{"date-parts":[[2014,2,27]],"date-time":"2014-02-27T04:57:27Z","timestamp":1393477047000},"page":"204-210","source":"Crossref","is-referenced-by-count":56,"title":["Motor dual\u2010task\n T<\/scp>\n imed\n U<\/scp>\n p &\n G<\/scp>\n o test better identifies prefrailty individuals than single\u2010task\n T<\/scp>\n imed\n U<\/scp>\n p &\n G<\/scp>\n o test"],"prefix":"10.1111","volume":"15","author":[{"given":"Pei\u2010Fang","family":"Tang","sequence":"first","affiliation":[{"name":"School and Graduate Institute of Physical Therapy College of Medicine, National Taiwan University Taipei Taiwan"},{"name":"Graduate Institute of Brain and Mind Sciences College of Medicine, National Taiwan University Taipei Taiwan"},{"name":"Neurobiology and Cognitive Science Center National Taiwan University Hospital Taipei Taiwan"},{"name":"Physical Therapy Center National Taiwan University Hospital Taipei Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao\u2010Jan","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Public Health Chung Shan Medical University Taichung Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ya\u2010Chi","family":"Peng","sequence":"additional","affiliation":[{"name":"School of Physical Therapy Chung Shan Medical University Taichung Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hui\u2010Ya","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Physical Therapy Chung Shan Medical University Taichung Taiwan"},{"name":"Physical Therapy Room Chung Shan Medical University Hospital Taichung 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