- Title
- Effects of Plant-Based Protein Interventions, with and without an Exercise Component, on Body Composition, Strength and Physical Function in Older Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
- Creator
- Stoodley, Isobel L.; Williams, Lily M.; Wood, Lisa G.
- Relation
- Nutrients Vol. 15, Issue 18, no. 4060
- Publisher Link
- http://dx.doi.org/10.3390/nu15184060
- Publisher
- MDPI AG
- Resource Type
- journal article
- Date
- 2023
- Description
- Maintaining muscle mass, strength, and function is crucial for our aging population. Exercise and dietary protein intake are recommended strategies; however, animal proteins have been the most studied. Plant-based protein sources have lower digestibility and incomplete amino acid profiles. However new innovative plant-based proteins and products may have overcome these issues. Therefore, this systematic review aimed to synthesize the current research and evaluate the effects of plant-based protein interventions compared to placebo on body composition, strength, and physical function in older adults (≥60 years old). The secondary aim was whether exercise improved the effectiveness of plant-based protein on these outcomes. Randomized controlled trials up to January 2023 were identified through Medline, EMBASE, CINAHL, and Cochrane Library databases. Studies contained a plant-protein intervention, and assessed body composition, strength, and/or physical function. Thirteen articles were included, all using soy protein (0.6–60 g daily), from 12 weeks to 1 year. Narrative summary reported positive effects on muscle mass over time, with no significant differences compared to controls (no intervention, exercise only, animal protein, or exercise + animal protein interventions). There was limited impact on strength and function. Meta-analysis showed that plant-protein interventions were comparable to controls, in all outcomes. In conclusion, plant-protein interventions improved muscle mass over time, and were comparable to other interventions, warranting further investigation as an anabolic stimulus in this vulnerable population.
- Subject
- plant protein; older adults; exercise; animal protein; body composition; muscle mass
- Identifier
- http://hdl.handle.net/1959.13/1497552
- Identifier
- uon:54391
- Identifier
- ISSN:2072-6643
- Language
- eng
- Reviewed
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