El ejercicio en la prevención de caídas y lesiones relacionadas con las personas mayores: una revisión de los ensayos controlados aleatorios

CRD COMMENTARY:

The aims were stated and inclusion criteria were defined in terms of study design, participants, intervention and outcome. Several relevant databases were searched, though limiting the included studies to those published in the English language may have resulted in the omission of other relevant articles. No attempt was made to locate unpublished material, thus raising the possibility of publication bias. Validity was not formally assessed, but some aspects of validity were considered, such as randomisation and blinding. Relevant information on the included studies was either presented in tabular format or described in the text. No details were given of methods used to select studies, assess validity or extract data. Given the differences between studies a narrative review was appropriate. Potential sources of heterogeneity in the outcome measures were considered in the discussion.
5 out of 12 studies reported benefit from exercise. Another 4 reported no significant difference. The level of the evidence on which the authors' conclusions were based would have been strengthened by including a discussion of results with respect to a formal validity assessment.