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Resistance exercise intervention on muscular strength and power, and functional capacity in acute hospitalized older adults: a systematic review and meta-analysis of 2498 patients in 7 randomized clinical trials

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Abstract

To date, no meta-analytical study evaluating the benefits of resistance exercise intervention on muscular strength and power and functional capacity in acute hospitalized older adults was conducted. Then, to synthesize the emerging evidence on the effects of resistance exercise intervention on muscular strength and power and functional capacity in acute hospitalized older adults, two independent authors performed a systematic search (PubMed, Scopus, Web of Science, and SciELO) until January 2021. Randomized clinical trials were included regarding the effects of resistance exercise and hospital usual care. The Cochrane Collaboration assessment tool was used to analyze the risk of bias. The comparisons included muscular strength (isometric handgrip strength and one-repetition maximum test of leg press), muscular power (output during leg press exercise), and functional capacity (timed-up-and-go, and short physical performance battery). Resistance exercise intervention increased muscular strength (isometric handgrip strength: mean difference = 2.50 kg, 95% confidence interval (CI) = 1.33, 3.67; and one-repetition maximum test of leg press: mean difference = 19.28 kg, 95% confidence interval = 14.70, 23.86) and muscular power (mean difference = 29.52 W, 95% confidence interval = 28.84, 30.21), and functional capacity (timed-up-and-go: mean difference = 3.40 s, 95% confidence interval = 0.47, 6.36; and short physical performance battery: mean difference = 1.29 points, 95% confidence interval = 0.10, 2.48) at discharge compared with hospital usual care. This meta-analysis endorses the increase of muscular strength and power gains and improving the functional capacity in favor of resistance exercise intervention in acute hospitalized older adults.

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The data and materials analyzed during the present study are available from corresponding author on reasonable request.

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Funding

This study was supported by National Council of Technological and Scientific Development (CNPq/Brazil) and São Paulo Research Foundation (FAPESP/Brazil). MASC received a doctorate scholarship from the CNPq (Process 140473/2020–3), and CSP received a Post Doctorate scholarship from the FAPESP (Process 2018/23402–0). M.I. is funded in part by a research grant PI17/01814 of the Ministerio de Economía, Industria y Competitividad of Spain (ISCIII, FEDER).

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MASC and CSP contributed in planning. MASC, CMCF, ALS, PCS, and GK conducted data analysis, synthesis, and reporting of the work. MASC, CMCF, ALS, PCS, GK, and CSP contributed in data synthesis and revising of the work. MASC, CMCF, and CSP contributed in data extraction. MI, ESC, and CSP contributed in revising the work.

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Correspondence to Marcelo A. S. Carneiro.

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Carneiro, M.A.S., Franco, C.M.C., Silva, A.L. et al. Resistance exercise intervention on muscular strength and power, and functional capacity in acute hospitalized older adults: a systematic review and meta-analysis of 2498 patients in 7 randomized clinical trials. GeroScience 43, 2693–2705 (2021). https://doi.org/10.1007/s11357-021-00446-7

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