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Adams M, Gordt-Oesterwind K, Bongartz M, Zimmermann S, Seide S, Braun V, Schwenk M. Effects of Physical Activity Interventions on Strength, Balance and Falls in Middle-Aged Adults: A Systematic Review and Meta-Analysis. SPORTS MEDICINE - OPEN 2023; 9:61. [PMID: 37466877 DOI: 10.1186/s40798-023-00606-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 07/03/2023] [Indexed: 07/20/2023]
Abstract
BACKGROUND Weak lower body strength and balance impairments are fundamental risk factors for mobility impairments and falls that can be improved by physical activity (PA). Previous meta-analyses have focused on these risk factors in adults aged ≥ 65 years. Yet, the potential of PA for improving these risk factors in middle-aged populations has not been systematically investigated. This systematic review and meta-analysis aim to examine the effect of general and structured PA on lower limb strength, postural balance and falls in middle-aged adults. METHODS A computerized systematic literature search was conducted in the electronic databases MEDLINE, CINAHL, Web of Science and Cochrane Library. PA intervention types were classified according to the ProFaNE taxonomy. Randomized controlled trials exploring the effects of PA on strength (e.g., leg press one-repetition-maximum), balance (e.g., single limb stance) and falls (e.g., fall rates) in adults aged 40-60 years were systematically searched and included in a network analysis. Moderator analyses were performed for specific subgroups (age, sex, low PA). The methodological quality of the included studies was assessed using the Physiotherapy Evidence Database (PEDro) Scale. RESULTS Out of 7170 articles screened, 66 studies (median PEDro score 5) with 3387 participants were included. Strong, significant effects on muscle strength were found for strength (SMD = 1.02), strength-aerobic (SMD = 1.41), strength-endurance (SMD = 0.92) and water-based (SMD = 1.08) training (52 studies, I2 = 79.3%). Strength training (SMD = 1.16), strength-aerobic (SMD = 0.98) and 3D training (SMD = 1.31) improved postural balance (30 studies, I2 = 88.1%). Moderator analyses revealed significant effects of specific intervention types on certain subgroups and subdomains of strength and balance. No studies were found measuring falls. CONCLUSIONS Structured PA interventions in middle-aged adults improve strength and balance outcomes related to functional impairments and falls. Strength training increases both strength and balance and can be recommended to prevent age-related functional decline. However, the interpretability of the results is limited due to considerable heterogeneity and the overall low methodological quality of the included studies. Long-term trials are needed to determine the preventive potential of PA on strength, balance and falls. This meta-analysis may inform guidelines for tailored training during middle age to promote healthy aging. Prospero registration: CRD42020218643.
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Affiliation(s)
- Michael Adams
- Network Aging Research, Heidelberg University, 69115, Heidelberg, Germany.
- Institute of Sports and Sports Sciences, Heidelberg University, 69117, Heidelberg, Germany.
| | - Katharina Gordt-Oesterwind
- Network Aging Research, Heidelberg University, 69115, Heidelberg, Germany
- Institute of Sports and Sports Sciences, Heidelberg University, 69117, Heidelberg, Germany
- Unit Digitale Geriatrie, Geriatric Center of Heidelberg University Hospital, Medical Faculty of Heidelberg University, 69120, Heidelberg, Germany
| | - Martin Bongartz
- Geriatric Center, Heidelberg University Hospital, Agaplesion Bethanien Hospital Heidelberg, 69126, Heidelberg, Germany
| | - Samuel Zimmermann
- Institute of Medical Biometry, Heidelberg University Hospital, 69120, Heidelberg, Germany
| | - Svenja Seide
- Institute of Medical Biometry, Heidelberg University Hospital, 69120, Heidelberg, Germany
| | - Volker Braun
- Medical Faculty Mannheim, Heidelberg University, 68167, Mannheim, Germany
| | - Michael Schwenk
- Network Aging Research, Heidelberg University, 69115, Heidelberg, Germany
- Institute of Sports and Sports Sciences, Heidelberg University, 69117, Heidelberg, Germany
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, 78464, Constance, Germany
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Kwon J, Squires H, Franklin M, Lee Y, Young T. Economic models of community-based falls prevention: a systematic review with subsequent commissioning and methodological recommendations. BMC Health Serv Res 2022; 22:316. [PMID: 35255898 PMCID: PMC8902781 DOI: 10.1186/s12913-022-07647-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/14/2022] [Indexed: 11/21/2022] Open
Abstract
Background Falls impose significant health and economic burdens among older populations, making their prevention a priority. Health economic models can inform whether the falls prevention intervention represents a cost-effective use of resources and/or meet additional objectives such as reducing social inequities of health. This study aims to conduct a systematic review (SR) of community-based falls prevention economic models to: (i) systematically identify such models; (ii) synthesise and critically appraise modelling methods/results; and (iii) formulate methodological and commissioning recommendations. Methods The SR followed PRISMA 2021 guideline, covering the period 2003–2020, 12 academic databases and grey literature. A study was included if it: targeted community-dwelling persons aged 60 and over and/or aged 50–59 at high falls risk; evaluated intervention(s) designed to reduce falls or fall-related injuries; against any comparator(s); reported outcomes of economic evaluation; used decision modelling; and had English full text. Extracted data fields were grouped by: (A) model and evaluation overview; (B) falls epidemiology features; (C) falls prevention intervention features; and (D) evaluation methods and outcomes. A checklist for falls prevention economic evaluations was used to assess reporting/methodological quality. Extracted fields were narratively synthesised and critically appraised to inform methodological and commissioning recommendations. The SR protocol is registered in the Prospective Register of Systematic Reviews (CRD42021232147). Results Forty-six models were identified. The most prevalent issue according to the checklist was non-incorporation of all-cause care costs. Based on general population, lifetime models conducting cost-utility analyses, seven interventions produced favourable ICERs relative to no intervention under the cost-effectiveness threshold of US$41,900 (£30,000) per QALY gained; of these, results for (1) combined multifactorial and environmental intervention, (2) physical activity promotion for women, and (3) targeted vitamin D supplementation were from validated models. Decision-makers should explore the transferability and reaches of interventions in their local settings. There was some evidence that exercise and home modification exacerbate existing social inequities of health. Sixteen methodological recommendations were formulated. Conclusion There is significant methodological heterogeneity across falls prevention models. This SR’s appraisals of modelling methods should facilitate the conceptualisation of future falls prevention models. Its synthesis of evaluation outcomes, though limited to published evidence, could inform commissioning. Supplementary Information The online version contains supplementary material available at 10.1186/s12913-022-07647-6.
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Affiliation(s)
- Joseph Kwon
- School of Health and Related Research, University of Sheffield, Regent Court (ScHARR), 30 Regent Street, Sheffield, S1 4DA, England.
| | - Hazel Squires
- School of Health and Related Research, University of Sheffield, Regent Court (ScHARR), 30 Regent Street, Sheffield, S1 4DA, England
| | - Matthew Franklin
- School of Health and Related Research, University of Sheffield, Regent Court (ScHARR), 30 Regent Street, Sheffield, S1 4DA, England
| | - Yujin Lee
- Warwick Medical School, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, England
| | - Tracey Young
- School of Health and Related Research, University of Sheffield, Regent Court (ScHARR), 30 Regent Street, Sheffield, S1 4DA, England
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