Berg K, Wood-Dauphinee S, Williams J. The Balance Scale: reliability assessment with elderly residents and patients with an acute stroke. Scand J Rehabil Med. 1995;27:27-36.
Berg KO, Wood-Dauphinee S, Williams JI, Gayton D. Measuring balance in the elderly: preliminary development of an instrument. Physiother Canada. 1989;41: 304-311.
Duncan, E. W., Weiner, D. K., Chandler, ]., & Studenski, S., (1990). Functional reach: A new clinical measure of balance. Journal of Gerontology, 45, MI92-MI97.
Mathias, S., Nayak, U. S. L., & Issacs, B., (1986). Balance in elderly patients: The "Ger-Up and Go" Test. Archives ofPhysical Medidne and Rehabilitation, 67, 387-389.
Podsiadlo, D., & Richardson, S., (1991). The Timed "Up and Go": A test of basic funcrional mobiliry for frail elderly persons. Journal 0/the American Geriatric Society, 39, 142-148.
Portney LG, Watkins MP. Foundations of Clinical Research. Applications to Practice. 2nd ed. Upper Saddle River, NJ: Prentice Hall Health; 2000.
Shumway-Cook A., Woollacott MH., Motor Control: Theory and Practical Applications. Baltimore, Md: Williams & Wilkins; 1995.
Shumway-Cook A, Woollocott MH. Motor Control: Theory and Practical Applications. 2nd ed.
Lippincott WIlliams & Wilkins; 2001.
Wrisley DM, Marchetti GF, Kuharsky DK, Whitney SL. Reliability, internal consistency, and validity of data obtained with the functional gait assessment. Phys Ther. 2004;84:906-