1. Sohbatiha M, Aslankhani MA, Farsi A. [The Effect of Aquatic and Land-Based Exercises on Static and Dynamic Balance of Healthy Male Older People (In Persian)]. Iranian Journal of Ageing. 2011;6(2):54-62.
2. Adams LJ. The Impact of Balance Training on Balance, Confidence, and Functionality in Assisted Living Adults: University Of Central Oklahoma; 2011.
3. Tinetti ME. Preventing falls in elderly persons. New England journal of medicine. 2003;348(1):42-9.
4. Legters K. Fear of falling. Physical therapy. 2002;82(3):264-72.
5. Kolovelonis A, Goudas M, Dermitzaki I. The effects of instructional and motivational self-talk on students’ motor task performance in physical education. Psychology of Sport and Exercise. 2011;12(2):153-8.
6. Shumway-Cook A, Woollacott MH. Motor control: theory and practical applications: Lippincott Williams & Wilkins; 1995.
7. Inoue M, Suhara T, Sudo Y, Okubo Y, Yasuno F, Kishimoto T, et al. Age-related reduction of extrastriatal dopamine D 2 receptor measured by PET. Life sciences. 2001;69(9):1079-84.
8. Kaasinen V, Vilkman H, Hietala J, Någren K, Helenius H, Olsson H, et al. Age-related dopamine D2/D3 receptor loss in extrastriatal regions of the human brain. Neurobiology of aging. 2000;21(5):683-8.
9. Wulf G. Attentional focus and motor learning: a review of 15 years. International Review of Sport and Exercise Psychology. 2013;6(1):77-104.
10. Moghaddam A, Vaezmousavi MK, Namazizade M. [The effect of difficult task and instruction of focus attention on balance task performance (In Persian)]. Harekat. 2009; (36): 23-37.
11. Boroujeni ST, Ghaheri B. The effect of motivational self-talk on reaction time. Procedia-Social and Behavioral Sciences. 2011;29:606-10.
12. Chroni S, Perkos S, Theodorakis Y. Function and preferences of motivational and instructional self-talk for adolescent basketball players. Athletic Insight. 2007;9(1):19-31.
13. Palmer SL. A comparison of mental practice techniques as applied to the developing competitive figure skater. The Sport Psychologist. 1992;6(2):148-55.
14. Theodorakis Y, Hatzigeorgiadis A, Chroni S. Self-talk: It works, but how? Development and preliminary validation of the functions of self-talk questionnaire. Measurement in Physical education and exercise Science. 2008;12(1):10-30.
15. Davoudi M, Shetabbushehri N, Abedanzadeh R. [The effect of instructional self-talk frequency on older adultsconduction of motor performance Ahwaz city(In Persian)]. Journal of Gerontology.2017;1(3):21-8.
16. Dana A, Rezaee R, Jalili F, Zamanian F. The effect of instruction and motivational self-talk on performance and retention of discrete and continuous motor tasks. Australian Journal of Applied Sciences. 2011;5(8):312-15.
17. Shariati A, Kalkhoran JF .[The effect of different kinds of self–Talk on balance function of the healthy elderly(In Persian)]. Journal of development and motor learning .2013; 3 )13(: 119-133.
18. Salajeghe A, Saberi Kakhki A, Zareazade M. [The effect of attentional focus types as the self talk form on acquisition and retention of Basketball chest pass(In Persian)]. Motor Behavior.2014;6(16):107-20.
19. Shahbazi N, Khalaji H, Ebrahimi Monfared M. [The Effect of Focus of Attention - Self talk on Balance of Women with Multiple Sclerosis(In Persian)]. amuj. 2016; 19 (1) :44-53
20. Hadavi F. Measurement and evaluation in physical education and exercise science. 1st ed. Tehran: Tarbiat moalem university.2007.
21. AslankHani M A, Farsi A, Fati Rzaie Z, Zamani Sani S H, Aghdasi M T.[Validity and Reliability of the Timed Up & Go and the Functional Reach tests in evaluating fall risk in elderly(In Persian)]. Salmand; 10 (1):2-13.
22. Wulf G, Weigelt M, Poulter D, McNevin N. Attentional focus on suprapostural tasks affects balance learning. The Quarterly Journal of Experimental Psychology: Section A. 2003;56(7):1191-211.
23. Wulf G. Attentional focus effects in balance acrobats. Research Quarterly for Exercise and Sport. 2008;79(3):319-25.
24. Wulf G, Landers M, Lewthwaite R, Toöllner T. External focus instructions reduce postural instability in individuals with Parkinson disease. Physical therapy. 2016;89(2):162-8.
25. Chiviacowsky S, Wulf G, Wally R. An external focus of attention enhances balance learning in older adults. Gait & posture. 2010;32(4):572-5.
26. Jackson BH, Holmes AM. The effects of focus of attention and task objective consistency on learning a balancing task. Research Quarterly for Exercise and Sport. 2011;82(3):574-9.
27. Parhizkar J, Zarghami M, Ghotbi Varzaneh A, Ghorbani A .[Age and attentional focus related differences in postural control. Journal of development and motor learning (In Persian)].2013; 5(4): 41-56
28. Ng SS, Hui-Chan CW. The timed up & go test: its reliability and association with lower-limb impairments and locomotor capacities in people with chronic stroke. Archives of physical medicine and rehabilitation. 2005;86(8):1641-7.