TY - BOOK PY - 2005 DA - 2005// TI - International classification of functioning, disability, and health PB - World Health Organization CY - Geneva ID - ref1 ER - TY - JOUR AU - Ancum, J. M. AU - Schooten, K. S. AU - Jonkman, N. H. AU - Huijben, B. AU - Lummel, R. C. AU - Meskers, C. G. M. PY - 2019 DA - 2019// TI - Gait speed assessed by a 4-m walk test is not representative of daily-life gait speed in community-dwelling adults JO - Maturitas VL - 121 UR - https://doi.org/10.1016/j.maturitas.2018.12.008 DO - 10.1016/j.maturitas.2018.12.008 ID - Ancum2019 ER - TY - JOUR AU - Giannouli, E. AU - Bock, O. AU - Mellone, S. AU - Zijlstra, W. PY - 2016 DA - 2016// TI - Mobility in old age: capacity is not performance JO - Biomed Res Int VL - 2016 UR - https://doi.org/10.1155/2016/3261567 DO - 10.1155/2016/3261567 ID - Giannouli2016 ER - TY - JOUR AU - Rapp, K. AU - Klenk, J. AU - Benzinger, P. AU - Franke, S. AU - Denkinger, M. D. AU - Peter, R. PY - 2012 DA - 2012// TI - Physical performance and daily walking duration: associations in 1271 women and men aged 65-90 years JO - Aging Clin Exp Res VL - 24 ID - Rapp2012 ER - TY - JOUR AU - Hillel, I. AU - Gazit, E. AU - Nieuwboer, A. AU - Avanzino, L. AU - Rochester, L. AU - Cereatti, A. PY - 2019 DA - 2019// TI - Is every-day walking in older adults more analogous to dual-task walking or to usual walking? Elucidating the gaps between gait performance in the lab and during 24/7 monitoring JO - Eur Rev Aging Phys Act VL - 16 UR - https://doi.org/10.1186/s11556-019-0214-5 DO - 10.1186/s11556-019-0214-5 ID - Hillel2019 ER - TY - JOUR AU - Stellmann, J. P. AU - Neuhaus, A. AU - Götze, N. AU - Briken, S. AU - Lederer, C. AU - Schimpl, M. PY - 2015 DA - 2015// TI - Ecological validity of walking capacity tests in multiple sclerosis JO - PLoS One VL - 10 UR - https://doi.org/10.1371/journal.pone.0123822 DO - 10.1371/journal.pone.0123822 ID - Stellmann2015 ER - TY - JOUR AU - Suominen, H. PY - 2011 DA - 2011// TI - Ageing and maximal physical performance JO - Eur Rev Aging Phys Act VL - 8 UR - https://doi.org/10.1007/s11556-010-0073-6 DO - 10.1007/s11556-010-0073-6 ID - Suominen2011 ER - TY - JOUR AU - Hortobagyi, T. AU - Mizelle, C. AU - Beam, S. AU - DeVita, P. PY - 2003 DA - 2003// TI - Old adults perform activities of daily living near their maximal capabilities JO - J Gerontol A Biol Sci Med Sci VL - 58 UR - https://doi.org/10.1093/gerona/58.5.M453 DO - 10.1093/gerona/58.5.M453 ID - Hortobagyi2003 ER - TY - JOUR AU - Pincheira, P. A. AU - Stenroth, L. AU - Avela, J. AU - Cronin, N. J. PY - 2017 DA - 2017// TI - Individual leg muscle contributions to the cost of walking: effects of age and walking speed JO - J Aging Phys Act VL - 25 UR - https://doi.org/10.1123/japa.2015-0232 DO - 10.1123/japa.2015-0232 ID - Pincheira2017 ER - TY - JOUR AU - Rockwood, K. PY - 2005 DA - 2005// TI - Frailty and its definition: a worthy challenge JO - J Am Geriatr Soc VL - 53 UR - https://doi.org/10.1111/j.1532-5415.2005.53312.x DO - 10.1111/j.1532-5415.2005.53312.x ID - Rockwood2005 ER - TY - JOUR AU - Ferrucci, L. AU - Guralnik, J. M. AU - Studenski, S. AU - Fried, L. P. AU - Cutler, G. B. AU - Walston, J. D. PY - 2004 DA - 2004// TI - Designing randomized, controlled trials aimed at preventing or delaying functional decline and disability in frail, older persons: a consensus report JO - J Am Geriatr Soc VL - 52 UR - https://doi.org/10.1111/j.1532-5415.2004.52174.x DO - 10.1111/j.1532-5415.2004.52174.x ID - Ferrucci2004 ER - TY - JOUR AU - Schwenk, M. AU - Mohler, J. AU - Wendel, C. AU - D'Huyvetter, K. AU - Fain, M. AU - Taylor-Piliae, R. PY - 2015 DA - 2015// TI - Wearable sensor-based in-home assessment of gait, balance, and physical activity for discrimination of frailty status: baseline results of the Arizona frailty cohort study JO - Gerontology VL - 61 UR - https://doi.org/10.1159/000369095 DO - 10.1159/000369095 ID - Schwenk2015 ER - TY - JOUR AU - Mohler, M. J. AU - Wendel, C. S. AU - Taylor-Piliae, R. E. AU - Toosizadeh, N. AU - Najafi, B. PY - 2016 DA - 2016// TI - Motor performance and physical activity as predictors of prospective falls in community-dwelling older adults by frailty level: application of wearable technology JO - Gerontology VL - 62 UR - https://doi.org/10.1159/000445889 DO - 10.1159/000445889 ID - Mohler2016 ER - TY - JOUR AU - Muchna, A. AU - Najafi, B. AU - Wendel, C. S. AU - Schwenk, M. AU - Armstrong, D. G. AU - Mohler, J. PY - 2018 DA - 2018// TI - Foot problems in older adults associations with incident falls, frailty syndrome, and sensor-derived gait, balance, and physical activity measures JO - J Am Podiatr Med Assoc VL - 108 UR - https://doi.org/10.7547/15-186 DO - 10.7547/15-186 ID - Muchna2018 ER - TY - JOUR AU - Fried, L. P. AU - Tangen, C. M. AU - Walston, J. AU - Newman, A. B. AU - Hirsch, C. AU - Gottdiener, J. PY - 2001 DA - 2001// TI - Frailty in older adults: evidence for a phenotype JO - J Gerontol A Biol Sci Med Sci VL - 56 UR - https://doi.org/10.1093/gerona/56.3.M146 DO - 10.1093/gerona/56.3.M146 ID - Fried2001 ER - TY - JOUR AU - Taylor, H. L. AU - Jacobs, D. R. AU - Schucker, B. AU - Knudsen, J. AU - Leon, A. S. AU - Debacker, G. PY - 1978 DA - 1978// TI - A questionnaire for the assessment of leisure time physical activities JO - J Chronic Dis VL - 31 UR - https://doi.org/10.1016/0021-9681(78)90058-9 DO - 10.1016/0021-9681(78)90058-9 ID - Taylor1978 ER - TY - CHAP AU - Eaton, W. AU - Smith, C. AU - Ybarra, M. AU - Muntaner, C. AU - Tien, A. ED - Maruish, M. PY - 2004 DA - 2004// TI - Center for epidemiologic studies depression scale: review and revision BT - The use of psychological testing for treatment planning and outcomes assessment PB - Lawrence Erlbaum Associates CY - New Jersey ID - Eaton2004 ER - TY - JOUR AU - Najafi, B. AU - Armstrong, D. G. AU - Mohler, J. PY - 2013 DA - 2013// TI - Novel wearable technology for assessing spontaneous daily physical activity and risk of falling in older adults with diabetes JO - J Diabetes Sci Technol VL - 7 UR - https://doi.org/10.1177/193229681300700507 DO - 10.1177/193229681300700507 ID - Najafi2013 ER - TY - JOUR AU - Najafi, B. AU - Aminian, K. AU - Paraschiv-Ionescu, A. AU - Loew, F. AU - Bula, C. J. AU - Robert, P. PY - 2003 DA - 2003// TI - Ambulatory system for human motion analysis using a kinematic sensor: monitoring of daily physical activity in the elderly JO - IEEE Trans Biomed Eng VL - 50 UR - https://doi.org/10.1109/TBME.2003.812189 DO - 10.1109/TBME.2003.812189 ID - Najafi2003 ER - TY - JOUR AU - Najafi, B. AU - Aminian, K. AU - Loew, F. AU - Blanc, Y. AU - Robert, P. A. PY - 2002 DA - 2002// TI - Measurement of stand-sit and sit-stand transitions using a miniature gyroscope and its application in fall risk evaluation in the elderly JO - IEEE Trans Biomed Eng VL - 49 UR - https://doi.org/10.1109/TBME.2002.800763 DO - 10.1109/TBME.2002.800763 ID - Najafi2002 ER - TY - JOUR AU - Cesari, M. AU - Kritchevsky, S. B. AU - Penninx, B. W. AU - Nicklas, B. J. AU - Simonsick, E. M. AU - Newman, A. B. PY - 2005 DA - 2005// TI - Prognostic value of usual gait speed in well-functioning older people--results from the health, aging and body composition study JO - J Am Geriatr Soc VL - 53 UR - https://doi.org/10.1111/j.1532-5415.2005.53501.x DO - 10.1111/j.1532-5415.2005.53501.x ID - Cesari2005 ER - TY - JOUR AU - Montero-Odasso, M. AU - Schapira, M. AU - Soriano, E. R. AU - Varela, M. AU - Kaplan, R. AU - Camera, L. A. PY - 2005 DA - 2005// TI - Gait velocity as a single predictor of adverse events in healthy seniors aged 75 years and older JO - J Gerontol A Biol Sci Med Sci VL - 60 UR - https://doi.org/10.1093/gerona/60.10.1304 DO - 10.1093/gerona/60.10.1304 ID - Montero-Odasso2005 ER - TY - JOUR AU - Rydwik, E. AU - Bergland, A. AU - Forsen, L. AU - Frandin, K. PY - 2012 DA - 2012// TI - Investigation into the reliability and validity of the measurement of elderly people's clinical walking speed: a systematic review JO - Physiother Theory Pract VL - 28 UR - https://doi.org/10.3109/09593985.2011.601804 DO - 10.3109/09593985.2011.601804 ID - Rydwik2012 ER - TY - JOUR AU - Aminian, K. AU - Najafi, B. AU - Bula, C. AU - Leyvraz, P. F. AU - Robert, P. PY - 2002 DA - 2002// TI - Spatio-temporal parameters of gait measured by an ambulatory system using miniature gyroscopes JO - J Biomech VL - 35 UR - https://doi.org/10.1016/S0021-9290(02)00008-8 DO - 10.1016/S0021-9290(02)00008-8 ID - Aminian2002 ER - TY - JOUR AU - Aminian, K. AU - Trevisan, C. AU - Najafi, B. AU - Dejnabadi, H. AU - Frigo, C. AU - Pavan, E. PY - 2004 DA - 2004// TI - Evaluation of an ambulatory system for gait analysis in hip osteoarthritis and after total hip replacement JO - Gait Posture VL - 20 UR - https://doi.org/10.1016/S0966-6362(03)00093-6 DO - 10.1016/S0966-6362(03)00093-6 ID - Aminian2004 ER - TY - JOUR AU - Hayes, A. F. AU - Rockwood, N. J. PY - 2017 DA - 2017// TI - Regression-based statistical mediation and moderation analysis in clinical research: observations, recommendations, and implementation JO - Behav Res Ther VL - 98 UR - https://doi.org/10.1016/j.brat.2016.11.001 DO - 10.1016/j.brat.2016.11.001 ID - Hayes2017 ER - TY - JOUR AU - Lummel, R. C. AU - Walgaard, S. AU - Pijnappels, M. AU - Elders, P. J. M. AU - Garcia-Aymerich, J. AU - Dieën, J. H. PY - 2015 DA - 2015// TI - Physical performance and physical activity in older adults: associated but separate domains of physical function in old age JO - PLoS One VL - 10 UR - https://doi.org/10.1371/journal.pone.0144048 DO - 10.1371/journal.pone.0144048 ID - Lummel2015 ER - TY - JOUR AU - Egerton, T. AU - Paterson, K. AU - Helbostad, J. L. PY - 2017 DA - 2017// TI - The association between gait characteristics and ambulatory physical activity in older people: a cross-sectional and longitudinal observational study using generation 100 data JO - J Aging Phys Act VL - 25 UR - https://doi.org/10.1123/japa.2015-0252 DO - 10.1123/japa.2015-0252 ID - Egerton2017 ER - TY - JOUR AU - Umstattd Meyer, M. R. AU - Janke, M. C. AU - Beaujean, A. A. PY - 2014 DA - 2014// TI - Predictors of older adults’ personal and community mobility: using a comprehensive theoretical mobility framework JO - Gerontologist VL - 54 UR - https://doi.org/10.1093/geront/gnt054 DO - 10.1093/geront/gnt054 ID - Umstattd Meyer2014 ER - TY - JOUR AU - Webber, S. C. AU - Porter, M. M. AU - Menec, V. H. PY - 2010 DA - 2010// TI - Mobility in older adults: a comprehensive framework JO - Gerontologist VL - 50 UR - https://doi.org/10.1093/geront/gnq013 DO - 10.1093/geront/gnq013 ID - Webber2010 ER - TY - JOUR AU - Blodgett, J. AU - Theou, O. AU - Kirkland, S. AU - Andreou, P. AU - Rockwood, K. PY - 2015 DA - 2015// TI - Frailty in NHANES: comparing the frailty index and phenotype JO - Arch Gerontol Geriatr VL - 60 UR - https://doi.org/10.1016/j.archger.2015.01.016 DO - 10.1016/j.archger.2015.01.016 ID - Blodgett2015 ER - TY - BOOK AU - Bowerman, B. L. AU - O'Connel, R. T. PY - 1990 DA - 1990// TI - Linear statistical models: an applied approach PB - Duxbury CY - Belmont ID - Bowerman1990 ER - TY - JOUR AU - Rodriguez-Manas, L. AU - Feart, C. AU - Mann, G. AU - Vina, J. AU - Chatterji, S. AU - Chodzko-Zajko, W. PY - 2013 DA - 2013// TI - Searching for an operational definition of frailty: a Delphi method based consensus statement: the frailty operative definition-consensus conference project JO - J Gerontol A Biol Sci Med Sci VL - 68 UR - https://doi.org/10.1093/gerona/gls119 DO - 10.1093/gerona/gls119 ID - Rodriguez-Manas2013 ER -