The relationship between digit ratio (2D:4D) and muscular fitness: A systematic review and meta-analysis,American Journal of Human Biology

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The relationship between digit ratio (2D:4D) and muscular fitness: A systematic review and meta-analysis
American Journal of Human Biology ( IF 1.6 ) Pub Date : 2021-07-31 , DOI: 10.1002/ajhb.23657
Brooke E. Pasanen ₁ , Jordan M. Tomkinson ₁ , Trevor J. Dufner ₁ , Chan Woong Park ₁ , John S. Fitzgerald ₁ , Grant R. Tomkinson _{1,

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Affiliation

Digit ratio (2D:4D), a marker of prenatal testosterone exposure, is a weak negative correlate of sports/athletic/fitness performance. While numerous studies have examined the relationship between 2D:4D and physical fitness, there has never been a comprehensive study that has synthesized studies examining relationships between 2D:4D and muscular fitness.

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