SynthesisFrontiers in public health2026
A systematic review and meta-analysis of the effects of different exercise modalities on frailty in older adults.
Synthesis in Frontiers in public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
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Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: To synthesize randomized evidence on unimodal resistance exercise, walking, and Tai Chi for frailty in older adults and to explore whether intervention characteristics may help explain between-study heterogeneity. Unlike broader reviews of multicomponent or non-pharmacological interventions, this review focuses on these three standalone modalities and reports modality- and dose-characteristic subgroup estimates. Methods: This systematic review and meta-analysis followed PRISMA 2020 and was prospectively registered in PROSPERO (CRD420251179862). Five databases were searched from inception to October 2025. Two reviewers independently screened records, extracted data, and assessed risk of bias with the Cochrane tool. Standardized mean differences (SMDs) were pooled using inverse-variance models; random-effects models were used when substantial heterogeneity was present. Prespecified subgroup analyses examined exercise modality and intervention characteristics. Leave-one-comparison-out sensitivity analysis was used to assess influence. Funnel-plot findings were considered exploratory because few comparisons were available. Results: Ten articles contributed 13 eligible exercise-control comparisons comprising 1,361 participant observations (682 intervention and 679 control). The overall random-effects estimate favored exercise (SMD = -0.57, 95% CI -0.91 to -0.24), but heterogeneity was substantial ( Conclusion: Resistance-exercise trials showed a significant pooled reduction in frailty scores, but the available evidence does not establish superiority over walking or Tai Chi because no direct head-to-head or network comparison was performed. High heterogeneity, imprecise modality subgroups, and sparse dose strata limit certainty. The dose-related findings should be used to generate hypotheses for adequately powered comparative trials rather than to prescribe an optimal regimen.
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