Health maintenance through home-based interventions for community-dwelling older people with sarcopenia during and after the COVID-19 pandemic: A systematic review and meta-analysis

Meng-Li Li, Patrick Pui-Kin Kor, Yu-Fang Sui, Justina Yat-Wa Liu, Meng-Li Li, Patrick Pui-Kin Kor, Yu-Fang Sui, Justina Yat-Wa Liu

Abstract

Background: The COVID-19 pandemic has greatly impacted people's lifestyles and changed the delivery of health interventions, especially interventions for community-dwelling older people with sarcopenia.

Objective: To summarize the components and explore the effectiveness of home-based interventions for improving sarcopenia and other health-related outcomes among community-dwelling older people with sarcopenia.

Design: Systematic review and meta-analysis.

Methods: The Cochrane Library, Scopus, EMBASE, Web of Science, CINAHL, Medline (via PubMed), and PsycINFO were searched for relevant papers published from January 1, 2010 to March 29, 2022. Only papers written in English were included. The modified version of Cochrane's risk-of-bias tool was used to assess the risks of bias in the included studies. The template for intervention description and replication checklist was used to summarize the intervention components. The mean difference (MD) or standard mean difference with a 95 % confidence interval (CI) was used to determine the effect size of studies using the same or different measuring methods. Random-effects models were in meta-analyses to pool the effects of home-based interventions on the included outcomes.

Results: After detailed screening and exclusion, 11 randomized controlled trials including 1136 older people with sarcopenia were included in our analyses. Three categories of home-based interventions were identified: exercise interventions, nutritional interventions, and combined exercise and nutritional interventions. The overall analysis of the outcomes (e.g., appendicular skeletal muscle mass index, lean mass, body fat mass, handgrip strength, and gait speed), showed that the effects of home-based exercise interventions were inconclusive. Compared with passive controls, home-based exercise interventions significantly improved knee extension strength (MD = 0.56 kg, 95 % CI: 0.09, 1.03, p = 0.020) and reduced the time required to complete the Timed Up and Go Test (MD = -1.41 s, 95 % CI: -2.28, -0.54, p = 0.001). Home-based nutritional interventions were effective in improving appendicular skeletal muscle mass (MD = 0.25 kg, 95 % CI: 0.02, 0.49, p = 0.030), gait speed (MD = 0.06 m/s, 95 % CI: 0.03, 0.09, p = 0.0001), and quality of life in terms of both the physical component summary (MD = 13.54, 95 % CI: 0.73, 26.34, p = 0.040) and mental component summary scores (MD = 8.69, 95 % CI: 2.98, 14.41, p = 0.003).

Conclusion: Home-based exercise interventions have the potential to improve muscle strength and physical function, while home-based nutritional interventions are effective in increasing muscle mass, physical function, and quality of life. Both of these can be applied at home during and after the COVID-19 pandemic to alleviate sarcopenia and improve health-related outcomes in community-dwelling older people.

Keywords: COVID-19; Exercise; Home-based; Nutrition; Sarcopenia.

Conflict of interest statement

Declaration of competing interest There are no conflicts of interest to declare.

Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.

Figures

Fig. 1
Fig. 1
PRISMA Flowchart showing the literature search and study selection.
Fig. 2
Fig. 2
Risk of bias summary of the included studies.
Fig. 3
Fig. 3
Overall effect of home-based exercise on body composition: SMI (A), lean mass (B), body fat mass (C), BMI (D).
Fig. 4
Fig. 4
Overall effect of home-based exercise on muscle strength: handgrip strength (A) and knee extension strength (B).
Fig. 5
Fig. 5
Overall effect of home-based exercise on physical function: gait speed (A), TUGT (B), chair stand (C) and others: quality of life (D).
Fig. 6
Fig. 6
Overall effect of home-based nutritional interventions on body composition: SMI (A), lean mass (B), ASM (C), body fat mass (D) and BMI (E).
Fig. 7
Fig. 7
Overall effect of home-based nutritional interventions on handgrip strength.
Fig. 8
Fig. 8
Overall effect of home-based nutritional interventions on gait speed (A) and quality of life, PCS (B) and MCS (C).

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