Acta Scientific Nutritional Health

Review ArticleVolume 1 Issue 3

Effect of Dietary Protein Intake on Hand Grip Strength in Healthy Adults - A Systematic Review

Sadequa Shahrook1*, Yipeng Ge2 and Mahshid Dehghan1

1Global Health, Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, Ontario, Canada
2Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada

*Corresponding Author: Sadequa Shahrook, Global Health, Population Health Research Institute, A Joint Institute of McMaster University and Hamilton Health Sciences, David Braley Cardiac, Vascular and Stroke Research Institute (DBCVSRI), 20 Copeland Avenue, Hamilton, Canada.

Received: May 31 2017; Published: July 06, 2017

Citation: Sadequa Shahrook., et al. “Effect of Dietary Protein Intake on Hand Grip Strength in Healthy Adults - A Systematic Review”. Acta Scientific Nutritional Health 1.3 (2018).


Background: Effect of protein intake on hand grip strength (HGS) is predominantly yielded using protein supplements for critically ill elderly population. In the midst of increasing chronic diseases and functional decline worldwide, we conducted a systematic review to assess the effect of dietary protein on HGS in healthy adult’s ≥ 18 years old to fill in the significant knowledge gap.

Methods: A comprehensive database search e.g. MEDLINE, EMBASE, and Cochrane Library was performed until April 2016 to assess dietary protein effect alone or with exercise. A structured data synthesis was adopted as meta-analysis of the data was not appropriate due to the wide heterogeneity in the studies.

Results: Six studies (n = 7352) were included of which only one was located in a developing country (India). Overall, studies were judged at unclear (RCT), high (intervention study), moderate (3 cohort studies), and high (one cohort study) risk of bias. We found mixed evidence on the effect of dietary protein on HGS in healthy adults. The GRADE evidence quality was moderate (trial, intervention study) and very low (cohort studies).

Conclusion: The evidence on the impact of dietary protein on HGS is inconsistent for the healthy adults. To avert globally rising functional limitations and disabilities, further investigations preferably using RCT design including healthy adults are essential.

Keywords: Dietary Intake; Protein; Food Frequency Questionnaire (FFQ); Endurance Exercise; Hand Grip Strength (HGH); Healthy Adults; Global Health

Copyright: © 2018 Sadequa Shahrook., et al.. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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