Hilgenkamp, T.I., van Wijck, R. and Evenhuis, H.M. (2012) Feasibility and reliability of physical fitness tests in older adults with intellectual disability: A pilot study. Journal of Intellectual Development and Disability, 37, 158-162. doi:10.3109/13668250.2012.681773
 Bartlo, P. and Klein, P.J. (2011) Physical activity benefits and needs in adults with intellectual disabilities: Systematic review of the literature. American Journal of Intellectual Development and Disability, 116, 220-232.
 Pitetti, K.H., Beets, M.W. and Combs, C. (2009) Physical activity levels of children with intellectual disabilities during school. Medicine and Sciences and Sports Exercises, 41, 1580-1586.
 Morey, M.C., Sloane, R., Pieper, C.F., Peterson, M.J., Pearson, M.P., Ekelund, C.C., Crowley, G.M., Demark-Wahnefried, W., Snyder, D.C., Clipp, E.C. and Cohen, H.J. (2008) Effect of physical activity guidelines on physical function in older adults. Journal of American Geriatric Society, 56, 1873-1878.
 Kruger, J., Buchner, D.M. and Prohaska, T.R. (2009) The prescribed amount of physical activity in randomized clinical trials in older adults. Gerontologist, 49, S100-S107. doi:10.1093/geront/gnp075
 Temple, V.A. (2009) Factors associated with high levels of physical activity among adults with intellectual disability. International Journal of Rehabilitation and Research, 32, 89-92. doi:10.1097/MRR.0b013e328307f5a0
 (2008) US department of health and human services: Physical activity guidelines for Americans.
 Sattelmair, J.R., Pertman, J.H. and Forman, D.E. (2009) Effects of physical activity on cardiovascular and noncardiovascular outcomes in older adults. Clinical Geriatric Medicine, 25, 677-702. doi:10.1016/j.cger.2009.07.004
 Deslandes, A., Moraes, H., Ferreira, C., Veiga, H., Silveira, H., Mouta, R., Pompeu, F.A., Coutinho, E.S. and Laks, J. (2009) Exercise and mental health: Many reasons to move. Neuropsychobiology, 59, 191-198.
 Merrick, J., Kandel, I., Lotan, M., Aspler, S., Fuchs, B.S. and Morad, M. (2010) National survey 2007 on medical services for persons with intellectual disability in residential care in Israel. International Journal of Adolescence and Medical Health, 22, 575-582.
 Lin, J.D., Wu, C.L., Lin, P.Y., Lin, L.P. and Chu, C.M. (2011) Early onset ageing and service preparation in people with intellectual disabilities: Institutional managers’ perspective. Research and Developmental Disabilities, 32, 188-193. doi:10.1016/j.ridd.2010.09.018
 Carmeli, E., Merrick, J., Kessel, S., Masharawi, Y. and Carmeli, V. (2003) Elderly persons with intellectual disability: A study of clinical characteristics, functional status, and sensory capacity. Scientific World Journal, 28, 298-307. doi:10.1100/tsw.2003.24
 Temple, V.A. (2007) Barriers, enjoyment, and preference for physical activity among adults with intellectual disability. International Journal of Rehabilitation and Research, 30, 281-287.
 Katz, S., Ford, A.B., Moskowitz, R.W., Jackson, B.A. and Jaffe, M.W. (1963) Studies of illness in the aged. The index of ADL: A standardized measure of biological and psychosocial function. Journal of American Medical Association, 185, 914-919.
 Carmeli, E., Imam, B. and Merrick, J. (2012) The relationship of pre-sarcopenia (low muscle mass) and sarcopenia (loss of muscle strength) with functional decline in individuals with intellectual disability (ID). Archives of Gerontology and Geriatrics, 55, 181-185.
 Bigby, C., Webber, R., Bowers, B. and McKenzie-Green, B. (2008) A survey of people with intellectual disabilities living in residential aged care facilities in Victoria. International Journal of Disability Research, 52, 404-414.
 Carmeli, E., Bar-Chad, S., Lotan, M., Merrick, J. and Coleman, R. (2003) Five clinical tests to assess balance following ball exercises and treadmill training in adult persons with intellectual disability. Journal of Gerontology A: Biological Sciences of Medical Sciences, 58, 767-772. doi:10.1093/gerona/58.8.M767
 Elinder, L.S., Bergstr?m, H., Hagberg, J., Wihlman, U. and Hagstr?mer, M. (2010) Promoting a healthy diet and physical activity in adults with intellectual disabilities living in community residences: Design and evaluation of a cluster-randomized intervention. BMC Public Health, 10, 761. doi:10.1186/1471-2458-10-761