Ergogenic effects of acute caffeine intake on muscular endurance and muscular strength in women: A meta-analysis

Grgic, Jozo ORCID: 0000-0002-6929-2844 and Del Coso, Juan (2021) Ergogenic effects of acute caffeine intake on muscular endurance and muscular strength in women: A meta-analysis. International Journal of Environmental Research and Public Health, 18 (11). ISSN 1661-7827

Abstract

This meta-analysis aimed to explore the effects of caffeine ingestion on muscular endurance and muscular strength in women. Five databases were searched to find relevant studies. A random-effects meta-analysis of standardized mean differences (SMD) was performed for data analysis. Subgroup meta-analyses explored the effects of caffeine on upper-body and lower-body muscular endurance and muscular strength. Eight crossover placebo-controlled studies were included in the review. In the main meta-analysis that considered data from all included studies, there was a significant ergogenic effect of caffeine on muscular endurance (SMD = 0.25; p = 0.027) and muscular strength (SMD = 0.18; p < 0.001). In a subgroup analysis that considered only upper-body exercises, there was a significant ergogenic effect of caffeine on muscular endurance (SMD = 0.20; p = 0.007) and muscular strength (SMD = 0.17; p < 0.001). In a subgroup analysis that considered only lower-body exercises, there was no significant difference between caffeine and placebo for muscular endurance (SMD = 0.43; p = 0.092) or muscular strength (SMD = 0.16; p = 0.109). The main finding of this meta-analysis is that caffeine ingestion has a significant ergogenic effect on muscular endurance and muscular strength in women. The effects reported in this analysis are similar to those previously observed in men and suggest that women may use caffeine supplementation as an ergogenic aid for muscular performance. Future research is needed to explore the effects of caffeine on lower-body muscular endurance and muscular strength in this population.

Dimensions Badge

Altmetric Badge

Item type Article
URI https://vuir.vu.edu.au/id/eprint/42267
DOI https://doi.org/10.3390/ijerph18115773
Official URL https://www.mdpi.com/1660-4601/18/11/5773
Subjects Current > FOR (2020) Classification > 4207 Sports science and exercise
Current > Division/Research > Institute for Health and Sport
Keywords caffeine intake, ergogenic effects, exercise performance, women, supplement, menstrual cycle, female athlete
Citations in Scopus 11 - View on Scopus
Download/View statistics View download statistics for this item

Search Google Scholar

Repository staff login