Extra protein alongside strength training in older adults

Subject: Protein interventions strengthen the effect of strength training in older adults

What this means

With strength training, extra protein led to more lean mass in the arms and legs and stronger grip than lower protein. Without strength training, extra protein showed no measurable effect.

Kirwan RP, Mazidi M, Rodríguez García C, Lane KE, Jafari A, Butler T, Pérez de Heredia F, Davies IG · 2022 · American Journal of Clinical Nutrition 115(3):897-913

What does this rating mean?

Multiple consistent meta-analyses or a position stand. Sufficient basis for a fixed choice in the coaching.

Findings

In older adults, extra protein strengthens the effect of strength training on limb muscle mass and grip strength.

Who this applies to

Older adults with an average age of 50 years or older.

Size of the research

Twenty-eight randomized trials; the total number of participants is not given in the abstract.

What to keep in mind

The effect on arm and leg lean mass appeared only in people with muscle loss or frailty. Results varied widely between studies, and 22 studies had some risk of bias.

Practical conclusion for REZA

Directly relevant to the core of REZA's target group. Protein intake is discussed as standard with clients over sixty.

View method and source

Methodology

Systematic review with meta-analysis of RCTs

Original source

DOI: 10.1093/ajcn/nqab355 · PMID: 34673936

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Protein source and quality for muscle building in younger and older adults

This information is general education about scientific research. It is not personal medical advice and does not replace diagnosis or treatment by a doctor or other healthcare professional. If you have symptoms, a medical condition or take medication, consult your GP or treating professional before changing your training or nutrition.

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