Abstract
Falls are a major source of death and injury in elderly people. For example, they cause 90% of hip fractures and the current cost of hip fractures in the US is estimated to be about 10 billion dollars. Age-related changes in the physiological systems (somatosensory, vestibular and visual) which contribute to the maintenance of balance are well documented in older adults. These changes coupled with age-related changes in muscle and bone are likely to contribute to an increased risk of falls in this population. The integrated rehabilitation-based model of fall risk factors reveals multiple sites for interventions that may reverse fall risk factors. Regular exercise may be one way of preventing falls and fall-related fractures. The evidence for this contention comes from a variety of sources. On the basis of 9 randomised controlled studies conducted since 1996, exercise appears to be a useful tool in fall prevention in older adults, significantly reducing the incidence of falls compared with control groups. However, current limitations such as inconsistencies in the measurement of key dependent and independent variables do not, at present, permit a meta-analysis of intervention trials. Further investigation, using trials designed with the current limitations in mind, is necessary to establish the optimum exercise programme to maximise fall prevention in older adults.
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Acknowledgements
Dr Carter was supported as an Royal Air Force Fellow while undertaking this research at the University of British Columbia (Allan McGavin Sports Medicine Centre and School of Human Kinetics. The ‘Fall-Free BC’ Research Program is supported by the Vancouver Foundation (BCMSF), the BC Sports Medicine Research Foundation, and the Canada Foundation for Innovation.
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Carter, N.D., Kannus, P. & Khan, K. Exercise in the Prevention of Falls in Older People. Sports Med 31, 427–438 (2001). https://doi.org/10.2165/00007256-200131060-00003
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DOI: https://doi.org/10.2165/00007256-200131060-00003