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. 2022 May 24;52(8):1939–1960. doi: 10.1007/s40279-022-01675-2

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Open AccessThis article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, which permits any non-commercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc/4.0/.

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Fig. 3 — Sub-group meta-regression for the effect of age on changes in muscle strength (a) and femur/hip bone mineral density (b). Lumbar spine bone mineral density was omitted because there was only one study in the > 70-year-old age group [45]. CI confidence interval, Diff difference