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Type: Journal article
Title: Nutritional interventions for optimizing healthy body composition in older adults in the community: an umbrella review of systematic reviews
Author: Schultz, T.
Roupas, P.
Wiechula, R.
Krause, D.
Gravier, S.
Tuckett, A.
Hines, S.
Kitson, A.
Citation: The JBI Database of Systematic Reviews and Implementation Reports, 2016; 14(8):257-308
Publisher: Joanna Briggs Institute
Issue Date: 2016
ISSN: 2202-4433
Statement of
Timothy J. Schultz, Peter Roupas, Richard Wiechula, Debra Krause, Susan Gravier, Anthony Tuckett, Sonia Hines, Alison Kitson
Abstract: Background: Optimizing body composition for healthy aging in the community is a significant challenge. There are a number of potential interventions available for older people to support both weight gain (for those who are underweight) and weight loss (for overweight or obese people). While the benefits of weight gain for underweight people are generally clearly defined, the value of weight loss in overweight or obese people is less clear, particularly for older people. Objectives: This umbrella review aimed to measure the effectiveness of nutritional interventions for optimizing healthy body composition in older adults living in the community and to explore their qualitative perceptions. Inclusion Criteria: Types of Participants: The participants were older adults, 60 years of age or older, living in the community. Types of Intervention: The review examined six types of nutritional interventions: (i) dietary programs, (ii) nutritional supplements, (iii) meal replacements, (iv) food groups, (v) food delivery support and eating behavior, and (vi) nutritional counselling or education. Types of Studies: This umbrella review considered any quantitative systematic reviews and meta-analyses of effectiveness, or qualitative systematic reviews, or a combination (i.e. comprehensive reviews). Types of Outcomes: The quantitative outcome measures of body composition were: (i) nutritional status (e.g. proportion of overweight or underweight patients); (ii) fat mass (kg), (iii) lean mass or muscle mass (kg), (iv) weight (kg) or BMI (kg/m), (v) bone mass (kg) or bone measures such as bone mineral density, and (vi) hydration status. Phenomena of Interest: The phenomena of interest were the qualitative perceptions and experiences of participants. Search Strategy: We developed an iterative search strategy for nine bibliometric databases and gray literature. Methodological Quality: Critical appraisal of 13 studies was conducted independently in pairs using standard Joanna Briggs Institute tools. Six medium quality and seven high quality studies were identified. Data Extraction: Data was extracted independently in pairs from all 13 included studies using the standard Joanna Briggs Institute data extraction tool. Data Summary: Only quantitative studies of effectiveness were included. The strength of evidence assessing the effectiveness of interventions was graded using a traffic light system (green, amber, red). An overall assessment of the quality of the evidence for each comparison was undertaken. Results: More systematic reviews investigating weight gain than those investigating weight loss were included. Studies on weight gain showed improved body composition for oral nutritional supplements on its own, for oral nutritional supplements in combination with resistance exercise training, and for oral nutritional supplements in combination with nutrition counselling. Studies on weight loss showed that diet in combination with exercise, diet in combination with exercise and nutrition counselling, and nutrition counselling on its own all can lead to reduced weight in older people. The outcomes of lean mass and weight/BMI were responsive to nutritional interventions, but fat mass did not vary. There were no qualitative reviews identified. Conclusions: Although effective interventions for weight gain and weight loss to optimize body composition of older people in the community were identified, making long term, clinically relevant changes in body composition is difficult. Multiple interventions are more effective than single interventions.
Keywords: Body composition; community-dwelling; healthy ageing; nutrition; older people; umbrella review
Rights: ©2016 Joanna Briggs Institute. Unauthorized reproduction of this article is prohibited.
DOI: 10.11124/JBISRIR-2016-003063
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