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Effectiveness of Foot and Ankle Exercise Programs on Reducing the Risk of Falling in Older Adults

A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Michael Schwenk Interdisciplinary Consortium on Advanced Motion Performance College of Medicine, University of Arizona, Tucson, AZ.
Arizona Center on Aging, University of Arizona, Tucson, AZ.
Southern Arizona Limb Salvage Alliance (SALSA), College of Medicine, University of Arizona, Tucson, AZ.

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Elise DeHaven Jordan Interdisciplinary Consortium on Advanced Motion Performance College of Medicine, University of Arizona, Tucson, AZ.
Southern Arizona Limb Salvage Alliance (SALSA), College of Medicine, University of Arizona, Tucson, AZ.

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Bahareh Honarvararaghi Interdisciplinary Consortium on Advanced Motion Performance College of Medicine, University of Arizona, Tucson, AZ.
Southern Arizona Limb Salvage Alliance (SALSA), College of Medicine, University of Arizona, Tucson, AZ.

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Jane Mohler Interdisciplinary Consortium on Advanced Motion Performance College of Medicine, University of Arizona, Tucson, AZ.
Arizona Center on Aging, University of Arizona, Tucson, AZ.
Southern Arizona Limb Salvage Alliance (SALSA), College of Medicine, University of Arizona, Tucson, AZ.

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David G. Armstrong Interdisciplinary Consortium on Advanced Motion Performance College of Medicine, University of Arizona, Tucson, AZ.
Southern Arizona Limb Salvage Alliance (SALSA), College of Medicine, University of Arizona, Tucson, AZ.

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Bijan Najafi Interdisciplinary Consortium on Advanced Motion Performance College of Medicine, University of Arizona, Tucson, AZ.
Arizona Center on Aging, University of Arizona, Tucson, AZ.
Southern Arizona Limb Salvage Alliance (SALSA), College of Medicine, University of Arizona, Tucson, AZ.

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Background:

Foot and ankle (FA) exercise programs might reduce the risk of falling in older adults. We sought to systematically review the current literature on FA exercise programs targeted at reducing the risk of falling in older adults.

Methods:

A systematic literature search was performed in the PubMed database, the Physiotherapy Evidence Database, the Cumulative Index to Nursing and Allied Health Literature, and the Cochrane Central Register of Controlled Trials. Articles were included based on the following criteria: 1) randomized controlled trial, 2) FA exercise program, and 3) use of fall risk–related motor outcomes (strength, balance, flexibility, and functional ability) or use of falls as an outcome. Weighted effect sizes (d) were calculated across studies for estimating the overall effect of FA exercises on the most frequently reported motor outcome parameters.

Results:

Eight publications met the inclusion criteria. Small to moderate overall effects were found for balance (d = 0.46, P < .001) and ankle flexibility (d = 0.29, P = .006). No significant overall effects were found for ankle plantarflexor strength (d = 0.11, P = .223) and walking performance (d = −0.05, P = .404). Controversial results were reported for other functional measures. Effects varied depending on the type of intervention. Only one study reported improved ankle evertor strength and a significant reduction in falls.

Conclusions:

Evidence suggests that FA exercise can improve certain fall risk–related motor outcomes and reduce falls. Limited effects on strength and functional ability might be related to insufficient training intensity and lack of adherence. Further studies that include progressive strength and flexibility training are necessary to validate which FA exercise programs are most effective at preventing falls. (J Am Podiatr Med Assoc 103(6): 534–547, 2013)

Corresponding author: Michael Schwenk, PhD, Interdisciplinary Consortium on Advanced Motion Performance (iCAMP), College of Medicine, University of Arizona, 1656 E Mabel St, Tucson, AZ 85724. (E-mail: mschwenk@surgery.arizona.edu)