1. WHO. WHO | 10 facts on ageing and health: World Health Organization; 2017 [updated 2017-05-23 11:25:24. Available from: http://www.who.int/features/factfiles/ageing/en/.
2. Paterson DH, Warburton DE. Physical activity and functional limitations in older adults: a systematic review related to Canada's Physical Activity Guidelines. The international journal of behavioral nutrition and physical activity. 2010; 7:38. [
DOI:10.1186/1479-5868-7-38] [
PMID] [
PMCID]
3. Statistics FIFoA-R. Older Americans 2008: Key indicators of well-being: Government Printing Office; 2008.
4. Ageing WHO, Unit LC. WHO global report on falls prevention in older age: World Health Organization; 2008?
5. Salminen MJ, Vahlberg TJ, Salonoja MT, Aarnio PT, Kivela SL. Effect of a risk-based multifactorial fall prevention program on the incidence of falls. Journal of the American Geriatrics Society. 2009; 57(4): 612-9. [
DOI:10.1111/j.1532-5415.2009.02176.x] [
PMID]
6. CDC. Older Adult Falls | Home and Recreational Safety | CDC Injury Center: CDC; 2017 [Available from: https://www. cdc.gov/homeandrecreationalsafety/falls/index.html.
7. Kosorok MR, Omenn GS, Diehr P, Koepsell TD, Patrick DL. Restricted activity days among older adults. American journal of public health. 1992; 82(9):1263-7. [
DOI:10.2105/AJPH.82.9.1263] [
PMID] [
PMCID]
8. Curcio C-L, Gomez F, Reyes-Ortiz CA. Activity restriction related to fear of falling among older people in the Colombian Andes Mountains: are functional or psychosocial risk factors more important? Journal of Aging and Health. 2009; 21(3):460-79. [
DOI:10.1177/0898264308329024] [
PMID]
9. Salehi L, Shokrvash B, Jamshidi E, Montazeri A. Physical activity in Iranian older adults who experienced fall during the past 12 months. BMC Geriatr. 2014;14(1):115. [
DOI:10.1186/1471-2318-14-115] [
PMID] [
PMCID]
10. Committee PAGA. Physical activity guidelines for Americans. Washington, DC: US Department of Health and Human Services. 2008:15-34.
11. Struber JC. Considering physical inactivity in relation to obesity. Internet Journal of Allied Health Sciences and Practice. 2004; 2(1):1-7.
12. WHO | Physical activity: World Health Organization; 2017 [updated 2017-02-21 15:38:30. Available from: http://www. who.int/media Centre/factsheets/fs385/en/.
13. Blair SN. Physical inactivity: the biggest public health problem of the 21st century. British journal of sports medicine. 2009;43(1):1-2. [
PMID]
14. Gregg EW, Pereira MA, Caspersen CJ. Physical activity, falls, and fractures among older adults: a review of the epidemiologic evidence. Journal of the American Geriatrics Society. 2000; 48(8):883-93. [
DOI:10.1111/j.1532-5415.2000.tb06884.x] [
PMID]
15. WHO. Global recommendations on physical activity for health. 2010.
16. WHO | 10 facts on physical activity: World Health Organization; 2017 [updated 2017-02-01. Available from: http://www.who. int/features/factfiles/physical_activity/en/.
17. Macera CA, Jones DA, Yore M, Ham S, Kohl HW, Kimsey Jr C, et al. Prevalence of physical activity, including lifestyle activities among adults-United States, 2000-2001. Morbidity and Mortality Weekly Report. 2003; 52(32):764-9.
18. Sadrollahi A, Hosseinian M, Alavi NM, Khalili Z, Esalatmanesh S. Physical activity patterns in the elderly kashan population. Iran Red Crescent Medical Journal. 2016;18(6): 1-8. [
DOI:10.5812/ircmj.25008] [
PMID] [
PMCID]
19. Motefaker M, Sadrbafghi S, Rafiee M, Bahadorzadeh L, Namayandeh S, Karimi M, et al. SuicEpidemiology of physical activity: a population based study in Yazd cityide attempt and its relation to stressors and supportive systems: a study in Karaj city. Tehran University of Medical Journal. 2007; 65(4):77-81.
20. Hosseini SR, Cumming RG, Kheirkhah F, Nooreddini H, Baiani M, Mikaniki E, et al. Cohort profile: The Amirkola health and ageing project (AHAP). International Journal of Epidemiology. 2013;43(5):1393-400. [PMID: 23918798]. [
DOI:10.1093/ije/dyt089] [
PMID]
21. Washburn RA, Smith KW, Jette AM, Janney CA. The Physical Activity Scale for the Elderly (PASE): development and evaluation. Journal of clinical epidemiology. 1993;46(2):153-62. [
DOI:10.1016/0895-4356(93)90053-4]
22. Sturnieks DL, St George R, Lord SR. Balance disorders in the elderly. Clinical neurophysiology.2008;38(6):467-78. [
DOI:10.1016/j.neucli.2008.09.001] [
PMID]
23. McKay C, Anderson KE. How to manage falls in community dwelling older adults: a review of the evidence. Postgraduate medical journal.2010:pgmj. 2009; 86(1015): 299-306.093468.
24. Chu L-W, Chi I, Chiu A. Incidence and predictors of falls in the Chinese elderly. Annals of the Academy of Medicine, Singapore. 2005;34(1):60-72. [
PMID]
25. Tinetti ME, De Leon CFM, Doucette JT, Baker DI. Fear of falling and fall-related efficacy in relationship to functioning among community-living elders. Journal of gerontology. 1994;49(3):140-147. [
DOI:10.1093/geronj/49.3.M140]
26. Mazo G, Liposcki D, Ananda C, Prevê D. Health conditions, incidence of falls and physical activity levels among the elderly. Brazilian Journal of Physical Therapy. 2007;11(6):437-42.
27. Curcio CL, Gomez F, Reyes-Ortiz CA. Activity restriction related to fear of falling among older people in the Colombian Andes mountains: are functional or psychosocial risk factors more important? Journal of aging and health. 2009;21(3):460-79. [
DOI:10.1177/0898264308329024] [
PMID]
28. Salehi L, Eftekhar H, Mohammad K, Taghdisi MH, Shojaeizadeh D. Physical activity among a sample of Iranians aged over 60 years: an application of the transtheoretical model. Archives of Iranian medicine. 2010;13(6) : 528- 536. [
PMID]
29. Benjamin K, Donnelly TT. Barriers and facilitators influencing the physical activity of Arabic adults: A literature review. Avicenna. 2013; 8: 1-16. [
DOI:10.5339/avi.2013.8]
30. Nelson CC, Wagner GR, Caban-Martinez AJ, Buxton OM, Kenwood CT, Sabbath EL, et al. Physical activity and body mass index: the contribution of age and workplace characteristics. American journal of preventive medicine. 2014;46(3):42-51. [
DOI:10.1016/j.amepre.2013.10.035] [
PMID] [
PMCID]
31. Eshaghi SR, Shahsanai A, Ardakani MM. Assessment of the Physical Activity of Elderly Population of Isfahan, Journal of Isfahan Medical School. 2011;29(147): 939- 946.
32. Florindo AA, Hallal PC, Moura ECd, Malta DC. Practice of physical activities and associated factors in adults, Brazil, 2006. Revista de saúde pública. 2009;43 (Suppl 2):65-73. [
DOI:10.1590/S0034-89102009000900009] [
PMID]
33. Mora S, Lee I-M, Buring JE, Ridker PM. Association of physical activity and body mass index with novel and traditional cardiovascular biomarkers in women. Journal of the American Medical Association. 2006;295(12):1412-9. [
DOI:10.1001/jama.295.12.1412] [
PMID]