AUTHOR=Zhang Wei , Cui Zhaohui , Shen Dayong , Gao Li , Li Qingyun TITLE=Testosterone levels positively linked to muscle mass but not strength in adult males aged 20–59 years: a cross-sectional study JOURNAL=Frontiers in Physiology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2025.1512268 DOI=10.3389/fphys.2025.1512268 ISSN=1664-042X