TY - JOUR
PY - 2021//
TI - Efficacy of exercise-based interventions in preventing falls among community-dwelling older persons with cognitive impairment: is there enough evidence? An updated systematic review and meta-analysis
JO - Age and ageing
A1 - Li, Fuzhong
A1 - Harmer, Peter
A1 - Eckstrom, Elizabeth
A1 - Ainsworth, Barbara E.
A1 - Fitzgerald, Kathleen
A1 - Voit, Jan
A1 - Chou, Li-Shan
A1 - Welker, Fei Li
A1 - Needham, Shana
SP - ePub
EP - ePub
VL - ePub
IS - ePub
N2 - OBJECTIVE: Exercise prevents falls in the general older population, but evidence is inconclusive for older adults living with cognitive impairment. We performed an updated systematic review and meta-analysis to assess the potential effectiveness of interventions for reducing falls in older persons with cognitive impairment.
METHODS: PubMed, EMBASE, CINAHL, Scopus, CENTRAL and PEDro were searched from inception to 10 November 2020. We included randomised controlled trials (RCTs) that evaluated the effects of physical training compared to a control condition (usual care, waitlist, education, placebo control) on reducing falls among community-dwelling older adults with cognitive impairment (i.e. any stage of Alzheimer's disease and related dementias, mild cognitive impairment).
RESULTS: We identified and meta-analysed nine studies, published between 2013 and 2020, that included 12 comparisons (N = 1,411; mean age = 78 years; 56% women). Overall, in comparison to control, interventions produced a statistically significant reduction of approximately 30% in the rate of falls (incidence rate ratio = 0.70; 95% CI, 0.52-0.95). There was significant between-trial heterogeneity (I2 = 74%), with most trials (n = 6 studies [eight comparisons]) showing no reductions on fall rates. Subgroup analyses showed no differences in the fall rates by trial-level characteristics. Exercise-based interventions had no impact on reducing the number of fallers (relative risk = 1.01; 95% CI, 0.90-1.14). Concerns about risk of bias in these RCTs were noted, and the quality of evidence was rated as low.
CONCLUSIONS: The positive statistical findings on reducing fall rate in this meta-analysis were driven by a few studies. Therefore, current evidence is insufficient to inform evidence-based recommendations or treatment decisions for clinical practice.PROSPERO Registration number: CRD42020202094.
Language: en
LA - en SN - 0002-0729 UR - http://dx.doi.org/10.1093/ageing/afab110 ID - ref1 ER -