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. 2020 Jan 22;6:6. doi: 10.1186/s40798-019-0233-9

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© The Author(s). 2020

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 4 — Meta-analysis of studies reporting relative (n min⁻¹) tackle and ball carry frequency from video analysis. The forest plot (mean and 95% confidence interval [CI]) was used to present the results of the meta-analysis and combined pooled estimates for a relative tackle frequency for backs and forwards and b for relative ball carry frequency for backs and forwards. Within the plot, squares and horizontal lines represent individual study mean and 95% CI and diamonds represent pooled mean and 95% CI