# Effects of different nutrition interventions on sarcopenia criteria in older people: A study protocol for a systematic review of systematic reviews with meta-analysis

## TL;DR

This study aims to evaluate how different nutrition interventions affect sarcopenia in older people by reviewing existing systematic reviews.

## Contribution

The novelty lies in conducting a systematic review of systematic reviews to consolidate evidence on nutrition's impact on sarcopenia.

## Key findings

- The study will assess the effectiveness of dietary interventions on sarcopenia criteria in older adults.
- It will use meta-analysis to quantify the impact of nutrition interventions on sarcopenia outcomes.
- The protocol is designed to be reproducible and cost-effective for broader understanding of sarcopenia management.

## Abstract

Sarcopenia, a subject of extensive research, has led to numerous clinical trials and systematic reviews (SR). These reviews aid healthcare professionals by summarizing results and conducting meta-analyses, enhancing reliability. However, the abundance of reviews complicates decision-making on sarcopenia management. To address this, SR of SR have emerged, consolidating data from various sources into comprehensive documents.

To assess the isolated impact of dietary interventions on sarcopenia’s diagnostic criteria for older individuals.

A study protocol for a SR of SR, following Cochrane and PRISMA recommendations. The search strategy includes the MeSH ‘sarcopenia’ and its subheadings; ‘aged’ and its subheadings; ‘nutrition’ and its subheadings; and filter ‘systematic review’, performed at main databases. Selected studies must include older adults, submitted to nutritional interventions compared to control groups. Quantitative analyses will use inverse variance statistic method (random effects); the effect measures mean difference. Heterogeneity measured with Q-Test.

The results of this SR of SR may provide valuable information about the sarcopenia treatment, deepening the knowledge about.

This protocol is reproducible, requires low cost and personnel, and may allow a higher understanding on sarcopenia treatment and management on older people.